owner`s manual

4
3
DC OFFSET ADJ.
J101-5
C
B
A
J101-3
J101-4
C
B
A
C111
90 DEG
SW102
C101
NP
2.2uF/50V
R107
-34V
1K
R115
1uF/50V
C110
C112
0.1uF/100V
4148
4148
Q110
A43
Q109
A43
Q101
Q102
2SC3381
D102
D101
A43
430P 180R
R119
A
NOTE: UNLESS OTHERWISE SPECIFIED
(1) FOR OPTION, POWER XSTR CAN BE 2SC3858/2SA1494
BUT C118, C119 WILL BE 430PF, AND C107,C109 WILL BE 30PF.
(2) R136 FACTORY SELECTED FOR 400mV ACROSS R141 OR R142.
(3) DC OFFSET CKT. FACTORY OPTION.
(4) ALL RESISTORS 1/4W EXCEPT AS NOTED.
(5) DC OPERATING VOLTAGES ARE REFERENCED TO GROUND.
BY MJL21194 / MJL21193 RESPECTIVELY.
B
(6) OUTPUT TRANSISTORS 2SC5359-O / 2SA1983-O CAN BE SUBSTITUTED
TURN ON DC VOLTAGE
(+10V)
R104
R105
1uF/50V
J101-2
500R
2
47K
47K
R106
C103
47uF/50V
CLIP LIGHT DRIVE
J102
R101
10K/0.5W
+34V
33V
A43
Q104
10K
R127
A93
A93
0R
NP
C108
47uF/50V
C107
20P
47.5K
10uF/50V
C117
A93
Q111
R126
Q108
R120
C109
20P
R110
22K
1K
4148
100K
R123
D110
1N5257B
33V
R112
D109
D118
1N751A
D117
1N751A
R116
Q106
Q105
1K
A93
C
Q113
A93
Q118
MJE340
100R
R130
Q112
A13
C
R125
Q107
0.1uF/100V
1M
C105
R102
R103
D103
47K
1K
4148
4148
33V
1N4752
R108
1N4752
C102
D104
D105
D106
10K/0.5W
240P
47uF/50V
10.0K
24.9R
R117
R113
C104
R183
Q103
R109
1.54K
C106
R118
R114
R122
10.0K
24.9R
10K
47.5K
1K
A93
1
D107
D108
100K
C116
0.1uF/50V
R136
10K
R135
430P
C115
1K
R134
Q115
10R
Q119
MJE340
REVISION B
0.1uF
C121
100R
R137
D
R176
12K 1/2W
12K 1/2W
R175
7-8-02
100R
R138
0.1uF
C120
JP103
JP104
215
R171
R143
215
R172
9. CHANGE C121, C122 FROM 5nF TO 0.1uF.
D
8. DELET C122, C123 OF 2.2uF 50V NP CAPS, INSERT TWO JUMPERS TO REPLACE THEM.
7. CHANGE PROTECTION CIRCUIT R173, R174 FROM 1K TO 215 OHM.
6. CHANGE PROTECTION CIRCUIT R127, R172 FROM 2K TO 215 OHM.
5. ADD R183 OF 10K 1/4W IN DELAY TURN ON CIRCUIT.
4. CHANGE D110 FROM 1N4752 TO 1N5257B.
3. CHANGE C129 FROM 10uF/50V TO 47uF/50V.
2. CHANGE INPUT CAP C101 FROM 47uF TO 2.2uF.
1. ADD D117, D118 OF 1N751A IN FEED-BACK NEYWORK.
R181
R182
B
4148
4148
R121
R111
R24
1.54K
1K
Q114
Q116
R132
C113
10uF/50V
10K/0.5W
10K/0.5W
R128
24.9R
MJE350
MJE350
24.9R
R131
*
24.9R
MJE350
MJE180
Q117
24.9R
4148
2N4401
2SC5359-O
2R
R129
R133
0.1uF
C114
D111
D112
Q139
Q138
2N4403
4148
4148
4148
2SC5359-O
2R
A
C118
D113
D114
C119
R173
620P/300V
215
215
R174
620P/300V
Q123
R141
2SC5359-O
2R
MJE340
Q121
100R
R139
100R
R140
Q120
MJE350
Q125
R145
R144
R142
Q122
10R/2W
10R/2W
2R
2SA1987-O
R147
0.33R/5W
0.33R/5W
R148
2R
E
R155
E
2SC5359-O
2R
0.33R/5W
2SC5359-O
2SA1987-O
R146
Q124
Q127
R149
R150
2R
0.33R/5W
0.33R/5W
2R
Q126
2SA1987-O
Q129
R151
R153
R154
R152
Q128
0.33R/5W
0.33R/5W
2R
2SA1987-O
Q131
R157
R158
R156
Q130
0.33R/5W
2R
Q133
R163
Q135
NP
L101
2.7R/2W
R177
1.8uH
C125
2SC5359-O
-86V
F
GTA - B.S01
7-8-02
9600-8760
F
Sheet
Drawn by
HEATSINK/AMP SCHEMATIC
MODEL GTA
Number
Filename
Date
C
Size
Title
2SA1987-O
R159
R161
2SC5359-O
2R
2SA1987-O
R162
R160
Q132
0.33R/5W
0.33R/5W
2R
Q137
R168
R165
2SC5359-O
2R
2SA1987-O
R166
R164
Q134
R167
0.33R/5W
0.33R/5W
2R
R169
R170
Q136
D115
0.33R/5W
0.33R/5W
BYV26C
2SA1987-O
0.1uF/100V
BYV26C
D116
C129
47uF/50V
0.1uF/100V
47K
1K
R179
Q140
R180
C124
C127
JP105
Q141
22uF/100V
BS08D
22uF/100V
MAC223
C126
1
J101-1
J101-11
J101-10
J101-9
+86V
R178
2.7R/2W
B
Rev
of
1
MING SHU
J101-6
J101-7
J101-8
C128
0.047uF/100V
4
3
2
1
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MC 33078
2
2
8.06K
470nF
FILM
8.06K
16.2K
16.2K
MC33078
MC33078
REMOVING THE 'X' CROSSED JUMPERS ON PCB AND RESTORING THE CUT TRACES, 4 PLCS. ONLY XLR'S AFFECTED.
470nF 470nF
FILM FILM
470nF
FILM
30
CHANNEL B OUT
BRIDGE
MONO
STEREO
MODE
SWITCHES
DUAL
MONO
CHANNEL A OUT
STEREO
9600-0762
B
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9600-8111
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