Signature 1.5 - AMPLIMOS one stage amplifiers, amplificatori audio

Signature 1.5 - AMPLIMOS one stage amplifiers, amplificatori audio

Two Channel Amplifier
Harman Kardon
SIGNATURE 1.5
Signature 1.5 POWER AMP SCHEMATIC (1 of 2)
C
B
D
E
G
F
H
NOTES
UNLESS OTHERWISE SPECIFIED
2. SET BIAS ACROSS
R118
33,2K
R99
R96
120
120
C14
104E
C25
D16
D1N4148
10P
500V
C33
10V
477
P1-3
BR2
F2
8A
R56
5.6K
R72
1.0K
C17
100
BAV20
D11
C7
80V
828
R3
6.8K
2W
C8
828
80V
C6
80V
828
R5
6.8K
2W
C5
80V
828
2
4
C10
C37
476
100V
R54
15K
GND2
2
1
3
R69
500
3
10K
R39
R1W
.33
R55
R1W
.33
R31
R1W
.33
R38
R1W
.33
R34
R1W
.33
R30
R1W
.33
R27
R1W
.33
R19
R1W
.33
R23
R1W
.33
L3
2UH
1
1
3
2
R18
R1W
.33
TS
T
10K
3
S1
PHONE JACK
3.5MM
+12 VDC
R106
R104
R74
1.0K
P3-6
P3-1
STAND BY THERSW
TH124
R105
10K
P3-2
100
Q25
Q24
2SA1962 3 2SA1962
1
Q33
2SA
1827
Q17
Q16
2SA1962 3 2SA1962
1
2
B
C
1
2
CHANNEL 2
OUTPUT
R107
RES-5W
R111
10W
2W
Q8
2SA1962
Q9
2SA1962
R112
10W
2W
C41
104E
100V
100
C46
271
CHGND
C45
271
J2
RED
BLK
BINDPOST
GND2
2
R11
CH2_OUTPUT
DCSENSE
47K
2
R73
1.0K
R76
1.0K
R53
75
D5
1N4004
R85
P3-5
DCSENSE
THERM SWITCH
+77V.CH2
P3-3
MUTE
GND
FAULT
C15
104
R15
3.3K
Q3
A56
R14
D
E
F
-77VDC.CH2
C32
104
100V GND2
P3-4
47K
A
RES/IND.2UH
2UH
R13
47K
R10
10
2
RL2
C11
106
R22
R1W
.33
P2-2
R43
100
R26
R1W
.33
-77VDC.CH2
J3
R12
Q2
2SC
3478
GND2
104E
200V
P3-7
D2
D1N4148
2
2
Q10
2SC5242
1
3
3
2
2
2
Q11
2SC5242
1
1W
Q35
2SC
4793
Q34
2SC3502
Q18
2SC5242
1
100
Q40
2SA1376
3
D10
D1N4148
Q19
2SC5242
1
P2-1
R45
Q43
A56
558
33
R57
1K
GND2
Q47
2SC
3478
3
1
GND2
Q26
2SC5242
1
R44
100
R117
750
R103
180
Q27
2SC5242
L4
1
2UH
R70
1.2K
33.2K
R102
47K
FAULT
Q37
2SC
4793
2
3
R58
15K
D6
1N4004
GND2
GND2
200V
F4
8A
P1-1
C19
181M
500V
R53
Q57
A06
+77VOC.CH2
1
R59
1.5K
MUTE
Q55
A06
Q41
2SC
3478
Q49
2SA1376
Q52
2SC2240
C24
104
100V
3
Q53
2SC2240
GND2
P1-2
Q48
2SA1376
1K
C47
271
P
+77VDC.CH2
Q36
2SA
1380
BAV20
D12
GND2
R119
100K
R94
100
R97
100
R77
1.0K
R75
1.0K
C34
102
R95
1.3K
R120
10V
477
O
M
10
R71
75
3
1
3
s
TS
R98 C35
1.3K 102
AGND2
C38
T2
C23
476
100V
3
J5
RCA/1S
L
R81
P4-1, P4-2 TO 18 MV
BY ADJUSTING R69
CHANNEL 1
INPUT
K
Signature 1.5 POWER AMPLIFIER
SCHEMATIC 1 of 2
1. ALL RESISTORS ARE 1/8W
1
J
I
2
A
G
H
I
J
FAULT
SENSE
K
L
M
O
P
20
Two Channel Amplifier
Harman Kardon
SIGNATURE 1.5
Signature 1.5 POWER AMP SCHEMATIC (2 of 2)
A
1
C
B
D
E
G
F
H
J
I
K
L
O
M
P
Signature 1.5 POWER AMPLIFIER
SCHEMATIC 2 of 2
NOTES
1. ALL RESISTORS ARE 1/8W
UNLESS OTHERWISE SPECIFIED
2. SET BIAS ACROSS
P4-1, P4-2 TO 18 MV
BY ADJUSTING R60
R78
C20
476
100V
GND1
CHANNEL 1
INPUT
3
J4
RCA/1S
T2
1 S1 4
2
5
3
6
GND1
R115
10V
477
1K
R114
33,2K
R91
120
P5-2
BR1
P5-1
F1
8A
P5-3
2
C9
4
C3
80V
828
C2
80V
828
C36
476
100V
R4
6.8K
2W
C1
80V
828
R1
10W
2W
104E
200V
R51
15K
R61
1.2K
GND1
R49
5.6K
R63
1.0K
Q23
Q22
Q15
Q14
Q6
Q7
2SC5242 2 2SC5242 2 2SC5242 2 2SC5242 2 2SC5242 2 2SC5242 2
L2
1
1
1
1
1
1
2UH
3
3
3
3
3
3
R42
P4-1
100
R37
R1W
.33
GND1
Q38
2SA1376
3
R25
R1W
.33
R21
R1W
.33
B
D
GND1
100
L1
2UH
1
1
R32
R1W
.33
R24
R1W
.33
R28
R1W
.33
R16
R1W
.33
RL1
R9
47K
RES/IND.2UH
2UH
1
2
CHANNEL 1
OUTPUT
R107
RES-5W
R20
R1W
.33
P4-2
Q21
Q20
2SA1962 3 2SA1962
1
Q13
Q12
2SA1962 3 2SA1962
1
2
2
3 Q28
2SA
1837
2
R108
10W
2W
Q4
2SA1962
Q5
2SA1962
R109
10W
2W
C39
104E
100V
R6
100
R7
C43
271
CHGND
C42
271
GND1
J1
RED
BLK
BINDPOST
DCSENSE
47K
R64
1.0K
R67
1.0K
R46
75
D2
1N4004
R84
10
E
C12
106
Q29
2SC3502
CHGND
C
10K
R17
R1W
.33
C27
104
100V
-77VDC.CH1
A
R5
Q1
2SC
3478
2
D7
D1N4148
R65
1.0K
R36
R1W
.33
R40
R60
500
R29
R1W
.33
R33
R1W
.33
D1
D1N4148
1W
Q42
A56
Q30
2SC4793
R50
1K
R47
15K
Q44
2SC
3478
R48
33
C16
106
50V
BAV20
D8
GND1
C4
80V
828
3
Q32
2SC
4793
R41
100
R113
750
R101
180
R2
6.8K
2W
2
C22
Q56
A06
200V
1
33.2K
Q54
A06
C13
104E
GND1
GND1
10P
500V
C28
10V
477
D4
1N4004
FAULT
C18
181M
500V
R52
D15
D1N4148
+77VOC.CH1
C21
104
100V
Q39
2SC
3478
Q46
2SA1376
R52
1.5K
MUTE
R100
47K
1 R79 2
15.8K
1/4W
3
Q45
2SA1376
R88
GND1
1
Q31
2SA
1380
Q50
2SC2240
Q51
2SC2240
CH2_OUTPUT
F3
8A
R86
100
R68
1.0K
R66
1.0K
C29
102
BAV20
D9
120
1 R80 2
15.8K
1/4W
GND2
R87
1.3K
R89
100
C40
R115
100K
C44
271
SWT-2P2T-HSLIDE
1
TS
S
R90 C30
1.3K 102
+77VDC.CH1
10
R62
75
F
G
H
I
J
K
L
M
-77VDC.CH1
GND1
O
P
21