model avr-3801 - ePanorama.net

Hi-Fi Component
SERVICE MANUAL
MODEL
AVR-3801
AV SURROUND RECEIVER
Some illustrations using in this service manual are slightly different from the actual set.
AVR-3801
BLOCK DIAGRAM
1
A
B
C
D
E
F
G
H
61
2
3
4
5
6
7
8
9
10
11
AVR-3801
WIRING DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
H
62
AVR-3801
SCHEMATIC DIAGRAMS (1/15)
1
2
4
3
5
6
7
8
9
A
B
B
A
C
D
+ 15V
- 15V
E
F
D
C
+ B LINE
- B LINE
G
SIGNAL
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
63
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (1/15)
1U-3320 (1/4) AUDIO/DSP UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (1/15)
1
2
4
3
5
6
7
8
9
A
B
C
D
+ 15V
- 15V
E
F
+ B LINE
- B LINE
G
SIGNAL
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
63
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (1/15)
1U-3320 (1/4) AUDIO/DSP UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (1/15)
1
2
4
3
5
6
7
8
9
A
B
C
D
+ 15V
- 15V
E
F
+ B LINE
- B LINE
G
SIGNAL
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
63
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (1/15)
1U-3320 (1/4) AUDIO/DSP UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (1/15)
1
2
4
3
5
6
7
8
9
A
B
C
D
+ 15V
- 15V
E
F
+ B LINE
- B LINE
G
SIGNAL
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
63
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (1/15)
1U-3320 (1/4) AUDIO/DSP UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (1/15)
1
2
4
3
5
6
7
8
9
A
B
C
D
+ 15V
- 15V
E
F
+ B LINE
- B LINE
G
SIGNAL
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
63
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (1/15)
1U-3320 (1/4) AUDIO/DSP UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (2/15)
1
2
3
4
5
6
7
8
10
9
11
A
+ 5V
B
A
B
C
D
+ 3.3V
+ 5V
E
C
D
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
+ B LINE
SIGNAL
SCHEMATIC DIAGRAMS (2/15)
H
1U-3320 (2/4) AUDIO DSP UNIT
DO NOT return the unit to the customer until the problem is located and
corrected.
64
AVR-3801
SCHEMATIC DIAGRAMS (2/15)
1
2
3
4
5
6
7
8
10
9
11
A
+ 5V
B
C
D
+ 3.3V
+ 5V
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
+ B LINE
SIGNAL
SCHEMATIC DIAGRAMS (2/15)
H
1U-3320 (2/4) AUDIO DSP UNIT
DO NOT return the unit to the customer until the problem is located and
corrected.
64
AVR-3801
SCHEMATIC DIAGRAMS (2/15)
1
2
3
4
5
6
7
8
10
9
11
A
+ 5V
B
C
D
+ 3.3V
+ 5V
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
+ B LINE
SIGNAL
SCHEMATIC DIAGRAMS (2/15)
H
1U-3320 (2/4) AUDIO DSP UNIT
DO NOT return the unit to the customer until the problem is located and
corrected.
64
AVR-3801
SCHEMATIC DIAGRAMS (2/15)
1
2
3
4
5
6
7
8
10
9
11
A
+ 5V
B
C
D
+ 3.3V
+ 5V
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
+ B LINE
SIGNAL
SCHEMATIC DIAGRAMS (2/15)
H
1U-3320 (2/4) AUDIO DSP UNIT
DO NOT return the unit to the customer until the problem is located and
corrected.
64
AVR-3801
SCHEMATIC DIAGRAMS (2/15)
1
2
3
4
5
6
7
8
10
9
11
A
+ 5V
B
C
D
+ 3.3V
+ 5V
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
+ B LINE
SIGNAL
SCHEMATIC DIAGRAMS (2/15)
H
1U-3320 (2/4) AUDIO DSP UNIT
DO NOT return the unit to the customer until the problem is located and
corrected.
64
AVR-3801
SCHEMATIC DIAGRAMS (3/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
A
B
+ 5V
+ 3.3V
C
+ 5V
D
E
F
D
C
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
+ B LINE
H
SIGNAL
SCHEMATIC DIAGRAMS (3/15)
1U-3320 (3/4) AUDIO/DSP UNIT
65
Parts marked with this symbol
have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (3/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
+ 5V
+ 3.3V
C
+ 5V
D
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
+ B LINE
H
SIGNAL
SCHEMATIC DIAGRAMS (3/15)
1U-3320 (3/4) AUDIO/DSP UNIT
65
Parts marked with this symbol
have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (3/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
+ 5V
+ 3.3V
C
+ 5V
D
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
+ B LINE
H
SIGNAL
SCHEMATIC DIAGRAMS (3/15)
1U-3320 (3/4) AUDIO/DSP UNIT
65
Parts marked with this symbol
have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (3/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
+ 5V
+ 3.3V
C
+ 5V
D
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
+ B LINE
H
SIGNAL
SCHEMATIC DIAGRAMS (3/15)
1U-3320 (3/4) AUDIO/DSP UNIT
65
Parts marked with this symbol
have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (3/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
+ 5V
+ 3.3V
C
+ 5V
D
E
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
+ B LINE
H
SIGNAL
SCHEMATIC DIAGRAMS (3/15)
1U-3320 (3/4) AUDIO/DSP UNIT
65
Parts marked with this symbol
have critical characteristics.
Use ONLY replacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (4/15)
1
2
3
4
5
7
6
8
10
9
11
A
+ 5V
B
B
A
C
- 15V
+ 5V
+ 15V
D
E
+ B LINE
- B LINE
SIGNAL
NOTICE
C
D
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
F
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (4/15)
H
1U-3320 (4/4) AUDIO DSP UNIT
66
AVR-3801
SCHEMATIC DIAGRAMS (4/15)
1
2
3
4
5
7
6
8
10
9
11
A
+ 5V
B
C
+ 5V
- 15V
+ 15V
D
E
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
F
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (4/15)
H
1U-3320 (4/4) AUDIO DSP UNIT
66
AVR-3801
SCHEMATIC DIAGRAMS (4/15)
1
2
3
4
5
7
6
8
10
9
11
A
+ 5V
B
C
+ 5V
- 15V
+ 15V
D
E
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
F
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (4/15)
H
1U-3320 (4/4) AUDIO DSP UNIT
66
AVR-3801
SCHEMATIC DIAGRAMS (4/15)
1
2
3
4
5
7
6
8
10
9
11
A
+ 5V
B
C
+ 5V
- 15V
+ 15V
D
E
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
F
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (4/15)
H
1U-3320 (4/4) AUDIO DSP UNIT
66
AVR-3801
SCHEMATIC DIAGRAMS (4/15)
1
2
3
4
5
7
6
8
10
9
11
A
+ 5V
B
C
+ 5V
- 15V
+ 15V
D
E
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
F
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (4/15)
H
1U-3320 (4/4) AUDIO DSP UNIT
66
AVR-3801
SCHEMATIC DIAGRAMS (5/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
B
A
C
- 15V
D
+ 15V
E
F
D
C
NOTICE
G
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
+ B LINE
H
- B LINE
SIGNAL
SCHEMATIC DIAGRAMS (5/15)
67
1U-3316 EXT IN VR UNIT
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (5/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
- 15V
D
+ 15V
E
F
NOTICE
G
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
+ B LINE
H
- B LINE
SIGNAL
SCHEMATIC DIAGRAMS (5/15)
67
1U-3316 EXT IN VR UNIT
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (5/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
- 15V
D
+ 15V
E
F
NOTICE
G
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
+ B LINE
H
- B LINE
SIGNAL
SCHEMATIC DIAGRAMS (5/15)
67
1U-3316 EXT IN VR UNIT
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (5/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
- 15V
D
+ 15V
E
F
NOTICE
G
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
+ B LINE
H
- B LINE
SIGNAL
SCHEMATIC DIAGRAMS (5/15)
67
1U-3316 EXT IN VR UNIT
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (5/15)
1
2
3
4
5
6
7
8
9
10
11
A
B
C
- 15V
D
+ 15V
E
F
NOTICE
G
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
+ B LINE
H
- B LINE
SIGNAL
SCHEMATIC DIAGRAMS (5/15)
67
1U-3316 EXT IN VR UNIT
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (6/15)
1
2
3
4
5
7
6
8
10
9
11
+ 5V
A
+ 15V
- 15V
+ 59V
B
+ 59V
A
+ 20V
B
C
D
- 33V
- 59V
+ 59V
+ 5.4V
E
+ 6V
C
+ 5V
D
+ 6.4V
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
+ B LINE
- B LINE
SIGNAL
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
SCHEMATIC DIAGRAMS (6/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3317-2 CONNECT UNIT
1U-3317-3 FRONT UNIT
H
68
AVR-3801
SCHEMATIC DIAGRAMS (6/15)
1
2
3
4
5
7
6
8
10
9
11
+ 5V
A
+ 15V
- 15V
+ 59V
B
+ 59V
+ 20V
C
D
- 33V
- 59V
+ 59V
+ 5.4V
E
+ 6V
+ 5V
F
+ 6.4V
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
+ B LINE
- B LINE
SIGNAL
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
SCHEMATIC DIAGRAMS (6/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3317-2 CONNECT UNIT
1U-3317-3 FRONT UNIT
H
68
AVR-3801
SCHEMATIC DIAGRAMS (6/15)
1
2
3
4
5
7
6
8
10
9
11
+ 5V
A
+ 15V
- 15V
+ 59V
B
+ 59V
+ 20V
C
D
- 33V
- 59V
+ 59V
+ 5.4V
E
+ 6V
+ 5V
F
+ 6.4V
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
+ B LINE
- B LINE
SIGNAL
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
SCHEMATIC DIAGRAMS (6/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3317-2 CONNECT UNIT
1U-3317-3 FRONT UNIT
H
68
AVR-3801
SCHEMATIC DIAGRAMS (6/15)
1
2
3
4
5
7
6
8
10
9
11
+ 5V
A
+ 15V
- 15V
+ 59V
B
+ 59V
+ 20V
C
D
- 33V
- 59V
+ 59V
+ 5.4V
E
+ 6V
+ 5V
F
+ 6.4V
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
+ B LINE
- B LINE
SIGNAL
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
SCHEMATIC DIAGRAMS (6/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3317-2 CONNECT UNIT
1U-3317-3 FRONT UNIT
H
68
AVR-3801
SCHEMATIC DIAGRAMS (6/15)
1
2
3
4
5
7
6
8
10
9
11
+ 5V
A
+ 15V
- 15V
+ 59V
B
+ 59V
+ 20V
C
D
- 33V
- 59V
+ 59V
+ 5.4V
E
+ 6V
+ 5V
F
+ 6.4V
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
+ B LINE
- B LINE
SIGNAL
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
SCHEMATIC DIAGRAMS (6/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3317-2 CONNECT UNIT
1U-3317-3 FRONT UNIT
H
68
AVR-3801
SCHEMATIC DIAGRAMS (7/15)
1
2
3
5
4
6
7
8
9
10
A
+ 20V
B
A
B
+ 15V
C
D
E
+ B LINE
SIGNAL
F
C
NOTICE
D
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
G
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (7/15)
1U-3318-1 AMP CONNECT UNIT
1U 3318-2 PRE OUT UNIT
69
11
AVR-3801
SCHEMATIC DIAGRAMS (7/15)
1
2
3
5
4
6
7
8
9
10
A
+ 20V
B
+ 15V
C
D
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
G
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (7/15)
1U-3318-1 AMP CONNECT UNIT
1U 3318-2 PRE OUT UNIT
69
11
AVR-3801
SCHEMATIC DIAGRAMS (7/15)
1
2
3
5
4
6
7
8
9
10
A
+ 20V
B
+ 15V
C
D
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
G
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (7/15)
1U-3318-1 AMP CONNECT UNIT
1U 3318-2 PRE OUT UNIT
69
11
AVR-3801
SCHEMATIC DIAGRAMS (7/15)
1
2
3
5
4
6
7
8
9
10
A
+ 20V
B
+ 15V
C
D
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
G
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (7/15)
1U-3318-1 AMP CONNECT UNIT
1U 3318-2 PRE OUT UNIT
69
11
AVR-3801
SCHEMATIC DIAGRAMS (7/15)
1
2
3
5
4
6
7
8
9
10
A
+ 20V
B
+ 15V
C
D
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
G
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (7/15)
1U-3318-1 AMP CONNECT UNIT
1U 3318-2 PRE OUT UNIT
69
11
AVR-3801
SCHEMATIC DIAGRAMS (8/15)
1
2
3
4
5
6
7
8
10
9
11
A
B
B
A
C
D
+ 20V
E
+ B LINE
SIGNAL
F
D
C
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
+ 20V
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (8/15)
1U-3315-2 SP F UNIT
1U-3315-3 SP S UNIT
70
AVR-3801
SCHEMATIC DIAGRAMS (8/15)
1
2
3
4
5
6
7
8
10
9
11
A
B
C
D
+ 20V
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
+ 20V
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (8/15)
1U-3315-2 SP F UNIT
1U-3315-3 SP S UNIT
70
AVR-3801
SCHEMATIC DIAGRAMS (8/15)
1
2
3
4
5
6
7
8
10
9
11
A
B
C
D
+ 20V
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
+ 20V
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (8/15)
1U-3315-2 SP F UNIT
1U-3315-3 SP S UNIT
70
AVR-3801
SCHEMATIC DIAGRAMS (8/15)
1
2
3
4
5
6
7
8
10
9
11
A
B
C
D
+ 20V
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
+ 20V
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (8/15)
1U-3315-2 SP F UNIT
1U-3315-3 SP S UNIT
70
AVR-3801
SCHEMATIC DIAGRAMS (8/15)
1
2
3
4
5
6
7
8
10
9
11
A
B
C
D
+ 20V
E
+ B LINE
SIGNAL
F
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
+ 20V
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
G
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (8/15)
1U-3315-2 SP F UNIT
1U-3315-3 SP S UNIT
70
AVR-3801
SCHEMATIC DIAGRAMS (9/15)
1
2
4
3
+ 0.4V
5
6
8
7
9
10
11
+ 59V
+ 58.5V
+ 1.2V
+ 57.9V
A
+ 0.6V
+ 1.1V
+ 31V
- 1.1V
- 1.2V
- 56.8V
- 56.2V
+ 0.3V
- 59V
- 56.2V
B
A
B
+ 59V
C
- 59V
D
+ 6V
+ 10.5V
E
F
D
C
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
H
SCHEMATIC DIAGRAMS (9/15)
1U-3315-1 POWER UNIT
71
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (9/15)
1
2
4
3
+ 0.4V
5
6
8
7
9
10
11
+ 59V
+ 58.5V
+ 1.2V
+ 57.9V
A
+ 0.6V
+ 31V
+ 1.1V
- 1.1V
- 1.2V
- 56.8V
- 56.2V
+ 0.3V
- 59V
- 56.2V
B
+ 59V
C
- 59V
D
+ 6V
+ 10.5V
E
F
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
H
SCHEMATIC DIAGRAMS (9/15)
1U-3315-1 POWER UNIT
71
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (9/15)
1
2
4
3
+ 0.4V
5
6
8
7
9
10
11
+ 59V
+ 58.5V
+ 1.2V
+ 57.9V
A
+ 0.6V
+ 31V
+ 1.1V
- 1.1V
- 1.2V
- 56.8V
- 56.2V
+ 0.3V
- 59V
- 56.2V
B
+ 59V
C
- 59V
D
+ 6V
+ 10.5V
E
F
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
H
SCHEMATIC DIAGRAMS (9/15)
1U-3315-1 POWER UNIT
71
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (9/15)
1
2
4
3
+ 0.4V
5
6
8
7
9
10
11
+ 59V
+ 58.5V
+ 1.2V
+ 57.9V
A
+ 0.6V
+ 31V
+ 1.1V
- 1.1V
- 1.2V
- 56.8V
- 56.2V
+ 0.3V
- 59V
- 56.2V
B
+ 59V
C
- 59V
D
+ 6V
+ 10.5V
E
F
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
H
SCHEMATIC DIAGRAMS (9/15)
1U-3315-1 POWER UNIT
71
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (9/15)
1
2
4
3
+ 0.4V
5
6
8
7
9
10
11
+ 59V
+ 58.5V
+ 1.2V
+ 57.9V
A
+ 0.6V
+ 31V
+ 1.1V
- 1.1V
- 1.2V
- 56.8V
- 56.2V
+ 0.3V
- 59V
- 56.2V
B
+ 59V
C
- 59V
D
+ 6V
+ 10.5V
E
F
+ B LINE
- B LINE
SIGNAL
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
H
SCHEMATIC DIAGRAMS (9/15)
1U-3315-1 POWER UNIT
71
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
AVR-3801
SCHEMATIC DIAGRAMS (10/15)
1
2
3
4
6
5
7
8
10
9
11
A
+ 5V
+ 9V
+ 5V
A
B
B
+ 5V
+ 6.4V
+ 10.1V
+ 20V
+ 24.6V
C
+ 15V
- 15V
+ 25.7V
D
E
D
C
F
+ B LINE
- B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (10/15)
1U-3319-1 REGULATOR UNIT
1U-3319-4,5 DIGITAL INPUT UNIT
1U-3319-11/1U3319-12 VOLTAGE SELECT UNIT
1U-3319-8 PT902 UNIT
1U-3319-9 PT903 UNIT
H
72
AVR-3801
SCHEMATIC DIAGRAMS (10/15)
1
2
3
4
6
5
7
8
10
9
11
A
+ 5V
+ 9V
+ 5V
B
+ 5V
+ 6.4V
+ 10.1V
+ 20V
+ 24.6V
C
+ 15V
- 15V
+ 25.7V
D
E
F
+ B LINE
- B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (10/15)
1U-3319-1 REGULATOR UNIT
1U-3319-4,5 DIGITAL INPUT UNIT
1U-3319-11/1U3319-12 VOLTAGE SELECT UNIT
1U-3319-8 PT902 UNIT
1U-3319-9 PT903 UNIT
H
72
AVR-3801
SCHEMATIC DIAGRAMS (10/15)
1
2
3
4
6
5
7
8
10
9
11
A
+ 5V
+ 9V
+ 5V
B
+ 5V
+ 6.4V
+ 10.1V
+ 20V
+ 24.6V
C
+ 15V
- 15V
+ 25.7V
D
E
F
+ B LINE
- B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (10/15)
1U-3319-1 REGULATOR UNIT
1U-3319-4,5 DIGITAL INPUT UNIT
1U-3319-11/1U3319-12 VOLTAGE SELECT UNIT
1U-3319-8 PT902 UNIT
1U-3319-9 PT903 UNIT
H
72
AVR-3801
SCHEMATIC DIAGRAMS (10/15)
1
2
3
4
6
5
7
8
10
9
11
A
+ 5V
+ 9V
+ 5V
B
+ 5V
+ 6.4V
+ 10.1V
+ 20V
+ 24.6V
C
+ 15V
- 15V
+ 25.7V
D
E
F
+ B LINE
- B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (10/15)
1U-3319-1 REGULATOR UNIT
1U-3319-4,5 DIGITAL INPUT UNIT
1U-3319-11/1U3319-12 VOLTAGE SELECT UNIT
1U-3319-8 PT902 UNIT
1U-3319-9 PT903 UNIT
H
72
AVR-3801
SCHEMATIC DIAGRAMS (10/15)
1
2
3
4
6
5
7
8
10
9
11
A
+ 5V
+ 9V
+ 5V
B
+ 5V
+ 6.4V
+ 10.1V
+ 20V
+ 24.6V
C
+ 15V
- 15V
+ 25.7V
D
E
F
+ B LINE
- B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (10/15)
1U-3319-1 REGULATOR UNIT
1U-3319-4,5 DIGITAL INPUT UNIT
1U-3319-11/1U3319-12 VOLTAGE SELECT UNIT
1U-3319-8 PT902 UNIT
1U-3319-9 PT903 UNIT
H
72
AVR-3801
SCHEMATIC DIAGRAMS (11/15)
1
2
4
3
5
6
8
7
9
A
+ 12V
B
B
A
C
AM
FM
Lch
Rch
D
+ 5.3V
+ 6V
E
F
D
C
+ B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
73
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
SCHEMATIC DIAGRAMS (11/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3318-5 TUNER UNIT
1U-3318-4 H/P & P. SW UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (11/15)
1
2
4
3
5
6
8
7
9
A
+ 12V
B
C
AM
FM
Lch
Rch
D
+ 5.3V
+ 6V
E
F
+ B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
73
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
SCHEMATIC DIAGRAMS (11/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3318-5 TUNER UNIT
1U-3318-4 H/P & P. SW UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (11/15)
1
2
4
3
5
6
8
7
9
A
+ 12V
B
C
AM
FM
Lch
Rch
D
+ 5.3V
+ 6V
E
F
+ B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
73
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
SCHEMATIC DIAGRAMS (11/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3318-5 TUNER UNIT
1U-3318-4 H/P & P. SW UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (11/15)
1
2
4
3
5
6
8
7
9
A
+ 12V
B
C
AM
FM
Lch
Rch
D
+ 5.3V
+ 6V
E
F
+ B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
73
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
SCHEMATIC DIAGRAMS (11/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3318-5 TUNER UNIT
1U-3318-4 H/P & P. SW UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (11/15)
1
2
4
3
5
6
8
7
9
A
+ 12V
B
C
AM
FM
Lch
Rch
D
+ 5.3V
+ 6V
E
F
+ B LINE
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
73
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
SCHEMATIC DIAGRAMS (11/15)
DO NOT return the unit to the customer until the problem is located and
corrected.
1U-3318-5 TUNER UNIT
1U-3318-4 H/P & P. SW UNIT
10
11
AVR-3801
SCHEMATIC DIAGRAMS (12/15)
1
2
3
4
6
5
7
8
10
9
11
A
B
B
A
C
+ 4.8V
+ 6.3V
D
E
D
C
+ 6.3V
F
G
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
+ B LINE
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
SIGNAL
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (12/15)
1U-3318-3 S-VIDEO UNIT
74
AVR-3801
SCHEMATIC DIAGRAMS (12/15)
1
2
3
4
6
5
7
8
10
9
11
A
B
C
+ 4.8V
+ 6.3V
D
E
+ 6.3V
F
G
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
+ B LINE
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
SIGNAL
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (12/15)
1U-3318-3 S-VIDEO UNIT
74
AVR-3801
SCHEMATIC DIAGRAMS (12/15)
1
2
3
4
6
5
7
8
10
9
11
A
B
C
+ 4.8V
+ 6.3V
D
E
+ 6.3V
F
G
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
+ B LINE
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
SIGNAL
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (12/15)
1U-3318-3 S-VIDEO UNIT
74
AVR-3801
SCHEMATIC DIAGRAMS (12/15)
1
2
3
4
6
5
7
8
10
9
11
A
B
C
+ 4.8V
+ 6.3V
D
E
+ 6.3V
F
G
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
+ B LINE
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
SIGNAL
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (12/15)
1U-3318-3 S-VIDEO UNIT
74
AVR-3801
SCHEMATIC DIAGRAMS (12/15)
1
2
3
4
6
5
7
8
10
9
11
A
B
C
+ 4.8V
+ 6.3V
D
E
+ 6.3V
F
G
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
WARNING:
+ B LINE
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
SIGNAL
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (12/15)
1U-3318-3 S-VIDEO UNIT
74
AVR-3801
SCHEMATIC DIAGRAMS (13/15)
1
2
4
3
5
6
7
8
9
10
11
A
+ 6.3V
B
A
B
+ 6.3V
C
D
E
F
D
C
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
75
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (13/15)
1U-3319-2 C.VIDEO UNIT
1U-3319-3 COMP. -VIDEO UNIT
+ B LINE
SIGNAL
AVR-3801
SCHEMATIC DIAGRAMS (13/15)
1
2
4
3
5
6
7
8
9
10
11
A
+ 6.3V
B
+ 6.3V
C
D
E
+ B LINE
F
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
75
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (13/15)
1U-3319-2 C.VIDEO UNIT
1U-3319-3 COMP. -VIDEO UNIT
AVR-3801
SCHEMATIC DIAGRAMS (13/15)
1
2
4
3
5
6
7
8
9
10
11
A
+ 6.3V
B
+ 6.3V
C
D
E
+ B LINE
F
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
75
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (13/15)
1U-3319-2 C.VIDEO UNIT
1U-3319-3 COMP. -VIDEO UNIT
AVR-3801
SCHEMATIC DIAGRAMS (13/15)
1
2
4
3
5
6
7
8
9
10
11
A
+ 6.3V
B
+ 6.3V
C
D
E
+ B LINE
F
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
75
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (13/15)
1U-3319-2 C.VIDEO UNIT
1U-3319-3 COMP. -VIDEO UNIT
AVR-3801
SCHEMATIC DIAGRAMS (13/15)
1
2
4
3
5
6
7
8
9
10
11
A
+ 6.3V
B
+ 6.3V
C
D
E
+ B LINE
F
SIGNAL
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
75
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (13/15)
1U-3319-2 C.VIDEO UNIT
1U-3319-3 COMP. -VIDEO UNIT
AVR-3801
SCHEMATIC DIAGRAMS (14/15)
1
2
3
4
6
5
7
8
10
9
11
A
- 59V
+ 6.4V
B
+ 6V
A
B
C
+ 12V
D
+ 5V
+ 15V
- 15V
E
D
C
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
NOTICE
+ B LINE
- B LINE
SIGNAL
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (14/15)
1U-3317-1 CONTROL UNIT
76
AVR-3801
SCHEMATIC DIAGRAMS (14/15)
1
2
3
4
6
5
7
8
10
9
11
A
- 59V
+ 6.4V
B
+ 6V
C
+ 12V
D
+ 5V
+ 15V
- 15V
E
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
NOTICE
+ B LINE
- B LINE
SIGNAL
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (14/15)
1U-3317-1 CONTROL UNIT
76
AVR-3801
SCHEMATIC DIAGRAMS (14/15)
1
2
3
4
6
5
7
8
10
9
11
A
- 59V
+ 6.4V
B
+ 6V
C
+ 12V
D
+ 5V
+ 15V
- 15V
E
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
NOTICE
+ B LINE
- B LINE
SIGNAL
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (14/15)
1U-3317-1 CONTROL UNIT
76
AVR-3801
SCHEMATIC DIAGRAMS (14/15)
1
2
3
4
6
5
7
8
10
9
11
A
- 59V
+ 6.4V
B
+ 6V
C
+ 12V
D
+ 5V
+ 15V
- 15V
E
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
NOTICE
+ B LINE
- B LINE
SIGNAL
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (14/15)
1U-3317-1 CONTROL UNIT
76
AVR-3801
SCHEMATIC DIAGRAMS (14/15)
1
2
3
4
6
5
7
8
10
9
11
A
- 59V
+ 6.4V
B
+ 6V
C
+ 12V
D
+ 5V
+ 15V
- 15V
E
F
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
NOTICE
+ B LINE
- B LINE
SIGNAL
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
H
SCHEMATIC DIAGRAMS (14/15)
1U-3317-1 CONTROL UNIT
76
AVR-3801
SCHEMATIC DIAGRAMS (15/15)
1
2
3
5
4
6
7
8
9
10
11
A
- 33V
B
B
A
C
D
+ 5V
E
F
D
C
+ B LINE
- B LINE
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
77
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (15/15)
1U-3316-2 DISPLAY UNIT
1U-3316-3 VOL UNIT
AVR-3801
SCHEMATIC DIAGRAMS (15/15)
1
2
3
5
4
6
7
8
9
10
11
A
- 33V
B
C
D
+ 5V
E
F
+ B LINE
- B LINE
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
77
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (15/15)
1U-3316-2 DISPLAY UNIT
1U-3316-3 VOL UNIT
AVR-3801
SCHEMATIC DIAGRAMS (15/15)
1
2
3
5
4
6
7
8
9
10
11
A
- 33V
B
C
D
+ 5V
E
F
+ B LINE
- B LINE
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
77
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (15/15)
1U-3316-2 DISPLAY UNIT
1U-3316-3 VOL UNIT
AVR-3801
SCHEMATIC DIAGRAMS (15/15)
1
2
3
5
4
6
7
8
9
10
11
A
- 33V
B
C
D
+ 5V
E
F
+ B LINE
- B LINE
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
77
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (15/15)
1U-3316-2 DISPLAY UNIT
1U-3316-3 VOL UNIT
AVR-3801
SCHEMATIC DIAGRAMS (15/15)
1
2
3
5
4
6
7
8
9
10
11
A
- 33V
B
C
D
+ 5V
E
F
+ B LINE
- B LINE
G
WARNING:
Parts marked with this symbol
have critical characteristics.
Use ONLY r eplacement parts recommended by the manufacture.
CAUTION:
H
77
NOTICE
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
SCHEMATIC DIAGRAMS (15/15)
1U-3316-2 DISPLAY UNIT
1U-3316-3 VOL UNIT