Service manual
42
28JF-76E
MSP3411G
1
13
15
+1.8V
-13V
8
22
(YB)
-13V
QSOCZ2561CEZZ
23
14
25
18
6
2
QSOCZ2561CEZZ
21
1
24
20
2
+25V
10
26
16
35
+5V
2
2
21
+16V
-16V
1
29
4
RH-IX1854BM
3
25
OUT R
+16V
+5V
GND
11
22
-16V
4
23
17
9
33
(YA)
12
7
+3.3Vb
19
GND
OUT L
+13V
28
25
3
1
-13V
+16V
24
5
SC2INR
LEDOPC
MUTE
HEADR
SDA1
RES
HEADR
SC2OUTL
HEADL
SSC-DATA
SC4INL
SC4INL
SCL1
SC1INL
SC4INR
SC2INL
HEADL
G IN
B IN
SC1OUTL
SDA1
AGC SMPL
SC4INR
FI
R IN
SC2OUTR
SC1OUTR
RESINT
SCL1
RES
PROT
IR
OPC
PROT
EW
SC1INR
MUTE
KEY
LED
FB
.
.
.
.
.
.
.
.
D304
7V5
EX0549
R330
10
C387
100nF
R336
100K
R630
6K2
R305
100K
R374
15K
L316
3.3uH
(CF)
D507
C27
EX0562
C369
100pF
C359
4.7nF
(HB)
C1046
100pF
R506
1K
C534
1nF
HB
R335
100K
C386
220nF
R334
1K
C384
1nF
IC501
TDA7480L
IX1786
1
2
3
4
5
6
7
8
9
10
.
.
.
.
.
R313
100K
R360
100K
C317
330nF
(FZ)
R307
4K7
C318
330nF
(FZ)
C308
3.3uF
L302
3.3uH
(DF)
C1044
1nF
R332
2K7
R312
100K
R384
22K
Q505
BC857B
TX0243
C508
560pF
(HB)
C504
220nF
(FZ)
C379
100nF
(25V)
D302
7V5
EX0549
C310
100nF
(25V)
C321
100nF
L303
IC301
TDA7480
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC302
TDA7480
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
R362
22K
D306
DX0045
C350
100nF
(25V)
D512
C33
EX0564
R301
100
R345
2K2
Q502
2SA1905Y
2SA1905Y
(SS)
GN341
C311
10uF
(16V)
C3313
1nF HB
(S)
GN0441CE
C312
10uF
(16V)
R387
100
R355
27K
C362
0.47uF
C371
1nF
HB
C505
100nF
(25V)
R308
100
R375
15K
C370
330nF
(FZ)
R665
10K
R357
150
C502
330nF
(16V)
JF4
C619
R302
100
C626
C378
220uF
(25V)
L319
22uH
(CF)
C381
10nF
D308
C8V2
EX0550BM
R505
220
C376
470nF
(FZ)
R629
470K
L350
3.3uH
(CF)
D309
C22
EX0423BM
R516
1K
(1%)
C320
10uF
(16V)
R344
2K2
C389
330nF
(FZ)
.
.
.
.
.
R380
18K
C367
100nF
(25V)
C364
100nF
(25V)
R664
1K
R503
1K
(1%)
L315
3.3uH
(CF)
R353
150
C526
1000uF
(25V)
Q503
N06-90L
TX0239
C507
4.7nF
(HB)
C365
220uF
(25V)
R738
150
(1/2W)
R510
8K2
L318
22uH
(CF)
R331
2K7
C1043
1nF
C1031
330uF
(6.3V)
R385
1M
C319
330nF
(FZ)
L353
680K
P0195CE
R382
18K
L501
P0271
C352
100nF
(FZ)
C366
100nF
(25V)
C503
100pF
.
.
.
.
.
C356
330nF
(FZ)
R504
1K
R346
1K5
R329
150
R311
100K
D641
DX0551
R358
100K
D508
DX0045
R303
100
C358
100nF
(25V)
C316
330nF
(FZ)
L351
3.3uH
(CF)
C360
560pF
(HB)
R502
4K7
(1%)
C1045
100pF
C309
330uF
(10V)
C380
10nF
(HD)
GN341
D307
C8V2
EX0550BM
C372
0.47uF
D511
DX0551
C373
100nF
(25V)
R309
100
C375
560pF
(HB)
C302
10uF
R553
1.2
(1/3W)
XZ0101BM
C363
220uF
(25V)
R333
1K
C382
100nF
C385
220nF
R339
220
R306
100K
C305
1nF
HB
R310
100K
C303
10uF
(16V)
R501
150
2W
C301
10uF
D305
7V5
EX0549
R328
150
R338
220
C307
100nF
(25V)
C306
1nF
HB
C328
100nF
(25V)
IC303
NC
64
NC
63
AVSS
62
AVSS
61
MONO
60
NC
59
VREFTOP
58
SC1_IN_R
57
SC1_IN_L
56
ASG1
55
SC2_IN_R
54
SC2_IN_L
53
ASG2
52
SC3_IN_R
51
SC3_IN_L
50
ASG4
49
SC4_IN_R
48
CAPL_M
40
AHVSUP
39
CAPL_A
38
SC1_OUT_L
37
SC1_OUT_R
36
VREF1
35
SC2_OUT_L
34
SC2_OUT_R
33
ASG3
32
NC
31
DACM_SUB
30
NC
29
DACM_L
28
DACM_R
27
VREF2
26
DAC_L
25
DAC_R
24
I2S_DA_IN2
17
DVSS
16
DVSS
15
DVSUP
13
DVSUP
12
DVSUP
11
ADR_CL
10
ADR_WS
9
ADR_DA
8
I2S_DA_IN1
7
I2S_DA_OUT
6
I2S_WS
5
I2S_CL
4
I2C_DA
3
I2C_CL
2
NC
1
DBYQ
SEL
R_OUT0
R_OUT1
CL_OUT
OUT
IN
N
N2+
N-
N1+
P
P
SC4_IN_L
47
NC
46
AGNDC
45
AHVSS
44
AHVSS
43
NC
42
NC
41
NC
18
NC
19
NC
20
RESETQ
21
NC
22
NC
23
DVSS
14
R304
100
C357
1nF
HB
R350
2K2
JF11
D642
C47
EX0568
L352
680K
P0195CE
.
.
.
.
.
C304
10uF
(16V)
R511
150
(TQ)
R351
27K
C383
1nF
Q305
BC847B
TX0232
R555
4R7
(1/2W)
XZ0208BM
C313
47nF
R352
12K
24
F
Z)
FB501
LN0091GE
D723
C8V2
EX0550
R518
1.5
(2W)
C368
100nF
(25V)
C354
100pF
C353
100nF
(25V)
D303
7V5
EX0549
R337
10
(RA)
IC304
M5218L
VHIM5218L
+12V
8
OUTL
7
-INL
6
+INL
5
GND
4
+INR
3
-INR
2
OUTR
1
C388
330nF
(FZ)
C377
1uF
R356
10K
C361
470nF
(FZ)
Q306
BC857B
TX0243
C351
220uF
(25V)
Q614
BC847B
TX0232
R359
100K
C374
4.7nF
(HB)
.
.
.
.
.
JF23
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Schematic Diagram of Mother Board Unit (F7351N1A)
Page 40