Read JBL DSC 500 (serv.man8) Service Manual online
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
12
11
10
9
8
7
6
5
4
3
2
1
D
C
B
A
+
3
-
2
o
1
v+
4
v-
11
IC1A
TL074
TL074
+
5
-
6
o
7
IC1B
TL074
TL074
+
10
-
9
o
8
IC1C
TL074
+
12
-
13
o
14
IC1D
TL074
TL074
R103
10K
10K
R100
10K
R101
27K
27K
R102
5.6K
5.6K
C103
220p
220p
C102
O ohm
C101
1/50
R105
6K8
6K8
R104
12K
12K
R106
JP
JP
JP
R110
N/C
R108
N/C
N/C
R109
N/C
C106
N/C
C107
N/C
C109
N/C
C108
N/C
N/C
C110
222p
C111
222p
R111
150k
R112
150k
150k
R114
1K2
1K2
R113
3K9
C100
100p
100p
C104
0.1
C105
0.1
+
3
-
2
o
1
v+
4
v-
11
IC2A
TL074
TL074
+
10
-
9
o
8
IC2C
TL074
+
3
-
2
o
1
v+
4
v-
11
IC3A
TL074
+
12
-
13
o
14
IC3D
TL074
TL074
R203 10K
R200
10K
R201
27K
27K
R202
5.6K
5.6K
C203 220p
C202
O ohm
C201
1/50
R205
6K8
R204
12K
12K
R206
JP
R207
JP
R210
N/C
R208
N/C
N/C
R209
N/C
C206
N/C
C207
N/C
C209
N/C
C208
N/C
N/C
C210
222p
C211
222p
R211
150k
R212
150k
150k
R214
750 ohm
750 ohm
R213
3K9
C200
100p
100p
C204
0.1
C205
0.1
+
5
-
6
o
7
IC2B
TL074
+
12
-
13
o
14
IC2D
TL074
TL074
+
5
-
6
o
7
IC3B
TL074
TL074
+
10
-
9
o
8
IC3C
TL074
TL074
R303
10K
R300
10K
R301
27K
27K
R302
5.6K
5.6K
C303 220p
C302
O ohm
O ohm
C301
1/50
R305
6K8
R304
12K
12K
R306
JP
R307
JP
R310
N/C
R308
N/C
N/C
R309
N/C
C306
N/C
C307
N/C
C309
N/C
C308
N/C
N/C
C310
222p
C311
222p
R311
150k
R312
150k
150k
R314
1K2
1K2
R313
3K9
C300
100p
100p
C304
0.1
C305
0.1
+
3
-
2
o
1
v+
4
v-
11
IC4A
TL074
+
10
-
9
o
8
IC4C
TL074
+
3
-
2
o
1
v+
4
v-
11
IC5A
TL074
+
10
-
9
o
8
IC5C
TL074
TL074
R403
10K
R400
10K
R401
27K
27K
R402
5.6.K
5.6.K
C403 220p
C402
O ohm
O ohm
C401
1/50
R405
6K8
R404
12K
12K
R406
JP
R407
JP
R410
N/C
R408
N/C
N/C
R409
N/C
C406
N/C
C407
N/C
C409
N/C
C408
N/C
N/C
C410
222p
C411
222p
R411
150k
R412
150k
150k
R414
1K2
1K2
R413
3K9
C400
100p
100p
C404
0.1
C405
0.1
+
5
-
6
o
7
IC4B
TL074
+
12
-
13
o
14
IC4D
TL074
+
5
-
6
o
7
IC5B
TL074
TL074
+
12
-
13
o
14
5D
TL074
TL074
R503
15K
R500
10K
R501
27K
27K
R502
5.6K
5.6K
C503 220p
C502
O ohm
O ohm
C501
1/50
R505
6K8
R504
12K
12K
R506
JP
R507
JP
R510
N/C
R508
N/C
N/C
R509
N/C
C506
N/C
C507
N/C
C509
N/C
C508
N/C
N/C
C510
222p
C511
222p
R511
150k
R512
150k
150k
R514
1K2
1K2
R513
3K9
C500
100p
100p
C504
0.1
C505
0.1
+
3
-
2
o
1
v+
4
v-
11
IC6A
TL074
+
5
-
6
o
7
IC6B
TL074
TL074
+
10
-
9
o
8
IC6C
TL074
TL074
+
12
-
13
o
14
IC6D
TL074
R602
30K
R600
10K
R601
27K
27K
R607
1K
C602
.018
C603
.018
R603
22K
R604
22K
R605
8K2
C604
C604
.03
R606
68K
68K
C605
.1
.1
C606
.1
R608
10K
R609
220K
220K
R610
22K
R611
36K
C608
.022
.022
C607
.068
R612
3K9
R613
4K7
4K7
C601
47/25
C600
100p
100p
1
2
3
4
5
6
2
3
4
5
6
JP13
4999A
1
2
3
4
5
6
7
2
3
4
5
6
7
J14
XH-7
+
3
-
2
o
1
v+
8
v-
4
IC7A
TL072
+
5
-
6
0
7
IC7B
TL072B
RA08
1M
RA09
10K
RA06
10K
RA07
56K
CA03
10/16
DA02
1N914B
DA01
1N914B
1N914B
CA04
4.7/25
4.7/25
RA10
470K
470K
RA11
10K
10K
QA02
2SC945
2SC945
QA01
2SC945
2SC945
RA04
22K
RA03
1K
1K
RA12
10K
10K
RA02
1K
1K
CA02
10/16
RA05
2K2
RA01
3K9
C609
2.2/50
R13
100
R14
100
V+
C13
100/25
C14
100/25
V+
V-
R11
100
+15V
R12
100
-15V
C11
100/25
C12
100/25
C27
.1
.1
C28
.1
.1
V+
V-
+15V
-15V
C25
.1
.1
C26
.1
.1
R9
100
R10
100
C9
100/25
C10
100/25
V+
V-
+15V
-15V
C23
.1
.1
C24
.1
.1
R7
100
R8
100
C7
100/25
C8
100/25
V+
V-
+15V
-15V
C21
.1
.1
C22
.1
.1
R5
100
R6
100
C5
100/25
C6
100/25
V+
V-
+15V
-15V
C19
.1
.1
C20
.1
.1
R3
100
R4
100
C3
100/25
C4
100/25
V+
V-
+15V
-15V
C17
.1
.1
C18
.1
.1
R1
100
R2
100
C1
100/25
C2
100/25
V+
V-
+15V
-15V
C15
.1
.1
C16
.1
.1
1
2
3
2
3
J15
XH-3
+15V
-15V
ESC380E EQ BOARD
A
C112
1/50
C212
1/50
C312
1/50
1/50
C412
1/50
1/50
C512
1/50
1/50
C610
47p
47p
CA05
1000pF
1000pF
+
3
-
2
1
8
IC101A
TL072
TL072
-
6
+
5
7
4
IC101B
TL072
R124
10k
R127
10k
R126
10k
10k
R125
10k
10k
R128
10k
R129
10k
10k
+
3
-
2
1
8
IC201A
TL072
TL072
-
6
+
5
7
4
IC201B
TL072
R224
10k
R227
10k
R226
10k
10k
R225
10k
10k
R228
10k
R229
10k
10k
+
3
-
2
1
8
IC301A
TL072
TL072
-
6
+
5
7
4
IC301B
TL072
R324
10k
R327
10k
R326
10k
10k
R325
10k
10k
R328
10k
R329
10k
10k
+
3
-
2
1
8
IC401A
TL072
TL072
-
6
+
5
7
4
IC401B
TL072
R424
10k
R427
10k
R426
10k
10k
R425
10k
10k
R428
10k
R429
10k
10k
+
3
-
2
1
8
IC501A
TL072
TL072
-
6
+
5
7
4
IC501B
TL072
R524
10k
R527
10k
R526
10k
10k
R525
10k
10k
R528
10k
R529
10k
10k
+
3
-
2
1
8
IC601A
TL072
TL072
-
6
+
5
7
4
IC601B
TL072
R624
10k
R627
10k
R626
10k
10k
R625
10k
10k
R628
10k
R629
10k
10k
R120
6k8
R121
6K8
C120
220p
220p
R122
6K8
R123
6K8
R (- In )
R (+ In )
R220
6k8
R221
6k8
C220
220p
R222
6k8
R223
6k8
C (- In )
C (+ In )
R320
6k8
R321
6k8
C320
220p
R322
6k8
R323
6k8
L (- In )
L (+ In )
R420
6k8
R421
6k8
C420
220p
R422
6K8
R423
6k8
SR (- In )
SR (+ In )
R520
6k8
R521
6k8
C520
220p
R522
6k8
R523
6k8
SL (- In )
SL (+ In )
R620
6k8
R621
6k8
C?
220p
R622
6k8
R623
6k8
SW (- In )
SW (+ In )
F1
4A/250V
F2
4A/250V
F3
8A/250V
F4
8A/250V
F5
1A/250V
F6
1A/250V
1
2
3
2
3
J95
CON3
1
2
3
4
5
6
2
3
4
5
6
J6
3962-6
T1
OPT
K1
JQ-1a
1
2
3
4
D1
RHD0402-001
1
2
3
4
D2
RHD0010-001
RHD0010-001
1
2
3
4
D3
BRIDGE1
C13
3300/50
3300/50
C14
3300/50
3300/50
C15
4700/50
4700/50
C16
4700/50
4700/50
C17
2200/35
2200/35
C18
2200/35
2200/35
1
2
3
4
5
6
2
3
4
5
6
J97
3962-6
C19
0.22uF
0.22uF
C20
0.1uF
0.1uF
C21
2.2uF
2.2uF
C22
1uF
1uF
IN
2
OUT
3
U2
7915
IN
1
OUT
3
U1
7815
1
2
3
J93
XH-3
XH-3
1
2
2
J94
XH-2
XH-2
R1
10K
1
2
2
J92
CON2
1
2
2
J91
CON2
C1
.1
.1
C2
.1
.1
C4
.1
C3
.1
C7
.1
C8
.1
C5
.1
.1
C6
.1
.1
C9
.1
.1
C10
.1
.1
C12
.1
C11
.1
1
2
3
2
3
JP99
5003
5003
1
2
2
J25
CON2
R3
1K5
1
2
3
4
2
3
4
J98
3962-4
D4
IN4148
R2
47
47
C25
0.1
C26
0.1
0.1
CX1
0.01
0.01
VDE PLUG 230V 50Hz
!
!
Fuse
4A 250V Type-T
1
2
2
JP
CON2
!
!
!
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U1
LM3886
LM3886
R152 1K
R154
1K
1K
R153 20K
L1 0.7uH
+VCC1
-VCC1
C151
0.1uF
0.1uF
R155
4.7
C153
560p
560p
R151
10K
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U2
LM3886
LM3886
R252 1K
R254
1K
1K
R253 20K
L3 0.7uH
+VCC1
-VCC1
C251
0.1uF
0.1uF
R255
4.7
C253
560p
560p
R251
10K
10K
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U4
LM3886
LM3886
R552 1K
R554
1K
1K
R553 20K
L2 0.7uH
+VCC1
-VCC1
C551
0.1uF
0.1uF
R555
4.7
C553
560p
560p
R551
10K
10K
+
3
-
2
o
1
v+
8
v-
4
IC8A
TL072
TL072
+
5
-
6
0
7
IC8
TL072B
R33
100K
R32
270K
270K
Q4
2SC2001
2SC2001
Q3
2SA733
R34
2K2
2K2
R30
270K
270K
D4
1N4148
C31
0.1uF
0.1uF
R31
5K6
1
2
JP1
4999A
1
2
JP4
4999A
1
2
JP2
4999A
+15V
-15V
Mute
1
2
3
4
5
6
2
3
4
5
6
J21
3962-6
+Vcc1
-Vcc1
Amp1
A
1
2
2
JP7
50032
C192
.1
.1
C193
.1
.1
C592
.1
.1
C593
.1
.1
C292
.1
.1
C293
.1
.1
C190
100/50
100/50
C590
100/50
100/50
C290
100/50
100/50
C191
100/50
100/50
C591
100/50
100/50
C291
100/50
100/50
C152
22uF
22uF
C552
22uF
22uF
C252
22uF
22uF
C32
22/35uF
22/35uF
1
2
2
JP8
50032
1
2
3
4
2
3
4
J20
3962-4
Q5
2SC2878
2SC2878
R35
22K
MUTE
Q6
2SC2878
2SC2878
R36
470K
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U6
LM3886
LM3886
R652 1K
R654
1K
R653 20K
L1 0.7uH
C651
0.1uF
0.1uF
R655
4.7
C653
560p
560p
R651
10K
10K
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U4
LM3886
LM3886
R452 1K
R454
1K
1K
R453 20K
L3 0.7uH
+VCC1
-VCC1
C451
0.1uF
0.1uF
R455
4.7
C453
560p
560p
R451
10K
10K
NC
11
VIN+
10
VIN-
9
MU
T
E
8
GND
7
NC
6
V+
5
V-
4
O/
P
3
NC
2
V+
1
U3
LM3886
LM3886
R352 1K
R354
1K
R353 20K
L2 0.7uH
+VCC1
-VCC1
C351
0.1uF
0.1uF
R355
4.7
C353
560p
560p
R351
10K
10K
1
2
JP3
4999A
1
2
JP4
4999A
1
2
2
J7
3962-2
+Vcc2
-Vcc2
1
2
3
4
2
3
4
J23
3962-4
1
2
3
4
5
6
2
3
4
5
6
J22
3962-6
+Vcc1
-Vcc1
+Vcc2
+Vcc2
-Vcc2
Mute
1
2
2
J10
XH-2
C692
.1
.1
C693
.1
.1
C392
.1
.1
C393
.1
.1
C492
.1
.1
C493
.1
.1
C690
100/50
100/50
C691
100/50
100/50
C390
100/50
100/50
C391
100/50
100/50
C490
100/50
100/50
C491
100/50
100/50
C652
22uF
22uF
C352
22uF
22uF
C452
22uF
22uF
1
2
3
2
3
JP6
4999A
1
2
3
4
5
6
7
8
9
10
JK501
HEADER CON
HEADER CON
1
2
3
4
JP23
3962
3962
1
2
3
4
5
6
JP21
3962
3962
C518
102
C519
102
C520
102
C521
102
102
C522
102
102
L501 10uH
L503 10uH
L502 10uH
L504 10uH
L505 10uH
1
2
3
2
3
JP12
XH-3
+6V
AGND
AGND
InMute
C121
0.1
0.1
C122
0.1
0.1
C221
0.1
0.1
C222
0.1
0.1
C321
0.1
0.1
C322
0.1
0.1
C421
0.1
0.1
C422
0.1
0.1
C521
0.1
0.1
C522
0.1
0.1
C621
0.1
0.1
C622
0.1
0.1
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
9
2
10
3
11
4
12
5
13
6
14
7
15
8
CON1
CON401B
1
2
3
4
5
6
7
8
9
10
11
12
13
2
3
4
5
6
7
8
9
10
11
12
13
CON2
XH-12
PIN9
PIN4
PIN7
PIN2
PIN5
PIN11
PIN3
PIN12
PIN1
PIN4
PIN7
PIN2
PIN5
PIN11
PIN3
PIN12
PIN1
MUTE
PIN10
+6V
PIN8
GND
PIN6
1
2
3
JP12
CON3
SR+
SR-
R-
SL-
R+
SL+
L-
SW-
L+
SW+
C-
C+
SR-
R-
SL-
R+
SL+
L-
SW-
L+
SW+
C-
C+
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
CON2
XH-12
SR+
SR-
R-
SL-
R+
SL+
L-
SW-
L+
SW+
C-
C+
SR-
R-
SL-
R+
SL+
L-
SW-
L+
SW+
C-
C+
R13
100
R14
100
C13
100/25
C14
100/25
V+
V-
+15V
-15V
C27
.1
.1
C28
.1
.1
C27
.1
.1
R13
100
100
C28
.1
JBL DSC500 SUBWOOFER
DSC500 Subwoofer Schematic
