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JBL Manuals
Amplifier
GTO 75.2
Service manual
JBL GTO 75.2 Service Manual page 21
2 channel power amplifier
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
A
C126
22P
R126
R125
10KF
10KF
R-OUT
C128
R128
RCA101-C
4.7/50V
1K
2
1
DJB-554A
-
+
3
U111-A
R127
NJM2068LD
R129
1K
100K
C105
22P
C102
R102
R105
22/16V
47KF
47KF
R107
LOW INPUT R-CH
R101
C104
2
1K
-
RCA101-A
22KF
10P
+
1
B
DJB-554A
3
C103
R103
U101-A
22/16V
47KF
VR101-A
NJM2068LD
20KB
C101
R106
C106
102P
47KF
22P
HI01
LAD1140-04PBK
C123
R123
1
22/16V
270K
+
R122
C124
R124
10K
1
22/16V
270K
-
C224
R224
C
HI-INPUT
1
22/16V
270K
-
R222
C223
R223
1
10K
22/16V
270K
+
C205
22P
C202
R202
R205
22/16V
47KF
47KF
LOW INPUT L-CH
R207
R201
C204
6
1K
-
RCA101-B
22KF
10P
7
+
DJB-554A
5
C203
R203
VR101-B
22/16V
47KF
U101-B
20KB
NJM2068LD
D
C201
R206
C206
102P
47KF
22P
C226
22P
R226
R225
10KF
10KF
L-OUT
C228
R228
DJB-554D
4.7/50V
1K
6
7
-
DJB-554A
+
5
U111-B
R227
R229
NJM2068LD
1K
100K
E
1
2
R112
10K
C111
47P
C156
18P
R111
C113
10K
823M
R156 91KF
U103-B
C155
R155
R113
U104-B
R110
NJM2088LD
15.2KF
NJM2068LD
10/16V
2
VR102A
5.6K
2
2
VR102C
10K
-
1
-
3
1
+
3
50KC
1
+
3
50KC
4
R108
U102-B
750
NJM2068LD
R114
10K
SW102
JSS2219
32-320Hz VARIABLE X-OVER
STEREO
MONO
R212
10K
C211
47P
R211
C213
10K
823M
U103-A
C255
U102-A
U104-A
NJM2068LD
8
R210
R213
10/16V
NJM2068LD
5
VR102B
NJM2068LD
5.6K
5
10K
-
5
VR102D
7
-
6
+
7
6
50KC
7
+
6
50KC
R208
R255
R256 47KF
750
15.2KF
R257
R214
C256
10K
9.4KF
33P
3
GTO 75.2 Page2 Schematic
C200
C400
C192
C191
473P
473P
330/16V
220/16V
-15V
C115
823M
R115
U105-B
SW101-A
NJM2068LD
NJM2068LD
5.6K
2
JSS-2319
R195
LPF
R120
-
U106-A
1K
+
1
HPF
3
1KF
3
+
FLAT
R196
1
-
2
1K
VR103-A
20KB
R197
39K
C197
C199
47P
*NJM2068LD*
104(M)
#4PIN : -15V
R199
#8PIN : +15V
6.8K
U106-B
C198
NJM2068LD
104(M)
5
+
R198
7
-
6
150K
C292
C291
330/16V
220/16V
C215
823M
R215
U105-A
U107-A
SW101-B
NJM2068LD
5.6K
NJM2068LD
5
JSS-2319
R295
-
LPF
R220
1K
7
HPF
3
1KF
+
6
+
FLAT
R296
-
1
2
1K
VR103-B
20KB
R297
39K
C297
C299
47P
104(M)
R299
6.8K
U107-B
C298
NJM2068LD
104(M)
5
+
R298
7
-
6
150K
5
4
20
15V
R191
33.84V
33.69V
VCC2
330/2W
D191
R131
R192
1K
1N4744(15V)
1K
R135
R136
32.79V
47
1K
C131
R132
Q133
2.2/50V
A1266GR
5.6K
LED02
Q131
TOL-30aSBaCAa-B2
0.86V
Q134
Q132
C132
C3198GR
C1027Y
R292
C3198GR
100P
Q135
1K
TIP35C
R133
R134
R137
22
22
3.9K
R160
R150
0.1/3W
C140
-0.61V
120
C120
Q140
473(M)
2.2\50V
0.61V
C3200GR
R170
0.1/3W
R143
R144
R147
R121
C121
22
22
2.7K
22KF
68P
Q145
TIP36C
Q144
C142
Q142
A1023Y
Q141
R142
100P
5.6K
A1266GR
A1266GR
Q143
C3198GR
C141
R145
R141
R146
2.2/50V
1K
1K
47
-15V
R171
R291
VEE2
R172
15KF
330/2W
-33.69V
1.1KF
C171
D291
100/16V
1N4744(15V)
33.84V
15V
R231
R235
R236
1K
32.79V
1K
47
C231
R232
2.2/50V
Q233
5.6K
A1266GR
Q232
Q231
C232
C3198GR
C3198GR
Q234
100P
C1027Y
Q235
TIP35C
R233
R234
R237
3.9K
22
22
R250
R260
120
0.1/3W
C220
-0.61V
C240
2.2\50V
0.61V
473(M)
Q240
C3200GR
R270
0.1/3W
R243
R244
R247
R221
C221
2.7K
22
22
22KF
68P
Q245
TIP36C
Q244
C242
Q241
Q242
A1023Y
100P
A1266GR
A1266GR
R242
Q243
5.6K
C3198GR
C241
R241
R245
R246
2.2/50V
1K
1K
47
-15V
R271
R272
15KF
1.1KF
C271
100/16V
6
VCC1
33.69V
PROT
Q151
R151
R152
C3200GR
1.5K
15K
C151
D151
100P
1SS133
A
Q181
R181
C3198GR
56K
R281
Q281
C181
56K
C3198GR
100/16V
F/ROUT
VEE1
R161
R162
4P
4.7/0.5W
680/2W
C161
P2
104(M)
C261
104(M)
R262
680/2W
R261
4.7/0.5W
VCC1
F/LOUT
Q251
C3200GR
R251
R252
1.5K
15K
D251
C251
1SS133
100P
VEE1
-33.84V
7
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This manual is also suitable for:
Gto 75.2ii
Gto series
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