JVC TH-C90A Service Manual page 56

Speaker amplifier section for TH-C90
LOUT 1
SSS_AMP_IN_L
2
L_PWMOUT 3
+7.5V 4
-7.5V 5
FLch IC301
IRS20124S-X
GND 6
GND 7
R_PWMOUT 8 IN NC
-23.5V
SSS_AMP_IN_R
9 ISET1 NC
-23.1V
R_OUT 10 DT/SD VB
-25.2V
SL_OUT 11 ISET2 HO
-14.1V
SSS_AMP_IN_SL 12 /OC VS
-25.9V
SL_PWMOUT 13 COM NC
SSS_ON 14 LO Vcc
SR_PWMOUT 15
SSS_AMP_IN_SR
16 C3151
1/16
SR_OUT 17
IC302
FRch
IRS20124S-X
IN NC
-23.5V
ISET1 NC
-23.1V
DT/SD VB
-25.2V
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
LO Vcc
C3251
1/16
IC303
SLch
IRS20124S-X
IN NC
-23.5V
ISET1 NC
-23.1V
DT/SD VB
-25.2V
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
LO Vcc
C3351
1/16
SRch
IC304
IRS20124S-X
IN NC
-23.5V
ISET1 NC
-23.1V
DT/SD VB
-25.2V
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
LO Vcc
C3451
1/16
C_PWMOUT
1
+5V 2
C_OUT 3
SW_OUT1 4
SW_OUT2 5
SW_PWMOUT1 6
SW_PWMOUT2 7
SW_SIG
8
A/D IN L 9
A/D IN SL 10
A/D IN SR 11
A/D IN R 12
PRE_VCC 13
D2703
FET PROTECT 14
1SS133-T2
PWM_CLK
15
TX/RX 16
P.ON 17
10K
TH301
QAD0146-103
CN301
QGB2510J1-20
34V
D3153
NI
R3159
Q3101
1/10W NI D
R3162
G
39 MY
1/4W
IRFB4212 S
1W
C3168
C3152 OMF R3168
MY
0.33/25
L3151
22u 22
0.22/100
QQL77AK-220
MY MY
-13.6V D3154
NI
C3160 C3161
R3160
Q3102
1/10W NI D NI NI
R3163
G
1/4W 39
IRFB4212 S
-25.9V
D3253
NI 34V
R3259
Q3201
1/10W NI D
R3262
G
39
1/4W S
IRFB4212 1W
MY OMF
C3252 C3268
R3268
QQL77AK-220 MY
0.33/25
L3251
22u 22
0.22/100
-13.6V D3254 MY MY
NI
R3260
Q3202
C3260
C3261
IRFB4212
NI D
1/10W
R3263
NI NI
1/4W G
39
S
-25.9V
D3353
NI R3359 34V
Q3301
NI D
1/10W
R3362
G
1/4W 39
S 1W
IRFB4212
MY R3368 C3368
C3352
OMF MY
0.33/25
L3351
22u 22
0.22/100
QQL77AK-220
MY MY
-13.6V D3354
NI
C3360 C3361
R3360
Q3302
NI D
1/10W NI
NI
R3363
G
1/4W 39
IRFB4212 S
-25.9V
D3453
NI 34V
R3459
Q3401
D
1/10W
NI
R3462
G
1/4W 39 MY
1W
S
IRFB4212 OMF
C3452 C3468
R3468
QQL77AK-220 MY
L3451
0.33/25
22u 22
0.22/100
D3454
-13.6V MY MY
NI
R3460
C3460 C3461
Q3402
1/10W NI D
R3463 NI NI
1/4W G
39
IRFB4212 S
-25.9V
IC251 IC251
RC4558D-X RC4558D-X R2603
R2503 4.7K
0V 0V
D2502 8 D2602
1SS133-T2 3 1SS133-T2 5
0V 4.7K 0V
1 7
2 6
4
R2505 0V 0V
470K R2605
33K
C2503 R2506
1/50
KTC3875/YG/-X 47
0V 0V
R2513 -2.3V
R2512
10K
-2.3V 10K
Q2502 Q2501
0V
0V
KTC3875/YG/-X
1/10W 34V
D3553
R3559
NI
NI
IC305
Q3501
D
Cch IRS20124S-X
R3562
G
39
1/4W
IN NC IRFB4212 S
MY
-23.5V
ISET1 NC
C3552
-23.1V
DT/SD VB
-25.2V 0.33/25
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
-13.6V D3554
LO Vcc NI
R3560
Q3502
1/10W NI D
C3551
R3563
1/16
G
1/4W 39
IRFB4212 S
-25.9V
D3653
NI 34V
IC306
SW1 R3659
IRS20124S-X
Q3601
1/10W NI D
R3662
IN NC
G
R3648 39
D3651 -22.2V 1/4W
100 ISET1 NC C3652 IRFB4212 S
1SS133-T2 MY
-23.1V
DT/SD VB
-25.5V 0.33/25
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
-13.6V
LO Vcc
D3654
1/10W
NI
R3660
Q3602
D
C3651 NI
R3663
1/16
1/4W G
39
IRFB4212 S
-25.9V
D3753
NI
SW2 34V
IC307
R3759
IRS20124S-X
Q3701
1/10W NI D
R3762
IN NC
D3751 1/4W 39 G MY
R3748 -22.2V
1SS133-T2 100 ISET1 NC C3752 IRFB4212 S
-23.1V
DT/SD VB
0.33/25
-25.5V
ISET2 HO
-14.1V
/OC VS
-25.9V
COM NC
-13.6V
D3754
LO Vcc
NI R3760
Q3702
1/10W NI D
C3751
R3763
1/16
1/4W G
39
IRFB4212 S
-25.9V
B3020
QUY150-050Y
L4001
NOT USE
220u
Q4006
QQL28AK-221
KTA1504/YG/-X KTA1271/OY/-T
-13.6V NI
Q3801
-12.9V
Q4007
R4011
NI
NI
Q4005
KRA104S-X
R4012
Q4003
NI
-14.1V
-19.9V
-25.8V
-20.5V
Q3802
-25.8V
KTC3875/YG/-X
-25.9V
7.1V
Q2701
0.9V
0.4V
NOTES:
1.VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER
OR OSCILLOSCOPE WITHOUT INPUT SIGNAL.
CONDITION POWER-ON. NO SIGNAL.
2.UNLESS OTHERWISE SPECIFIED.
ALL RESISTANCE VALUES ARE IN OHMS.
ALL INDUCTANCE VALUES ARE IN H.
ALL CAPACITANCE VALUES ARE IN F. P IS pF.
2-10
NI K3101
L3171 QQR1277-001Z
QQLZ005-R45
4 5 C3174
C3173 1/4W
UNF K3102
3 2
NI NI R3172 NI NI
1 6 K3201
RY301 L3271 NI QQR1277-001Z
QSK0127-001 QQLZ005-R45
C3273 C3274
1/4W
UNF K3202
NI NI R3272 NI
K3501
NI
QQR1277-001Z NI
L3571
QQLZ005-0R45
C3574
C3573 1/4W
UNF K3502
NI NI R3572 NI
RY302
NI K3301
QSK0127-001 L3371
QQR1277-001Z
QQLZ005-R45
4
5 C3373 C3374
1/4W
3 2 UNF K3302
NI NI R3372
NI
C3568
OMF 1 6
MY NI
R3568 L3471 QQR1277-001Z
K3401
QQLZ005-R45
L3551
22u 1W 22
0.22/100 C3474
C3473 1/4W
UNF K3402
QQL77AK-220 NI NI R3472
NI
MY
MY
C3560 C3561
NI NI
1W
OMF C3668 RY303
R3668 MY QSK0127-001
L3651 3
22u 22
0.22/100 2
5 4
QQL78AK-220
MY 1 6
C3660 C3661
NI NI
K3681 K3683
QQR1277-001Z QQR1277-001Z
NI
MY
1W
OMF
C3768
R3768 MY
L3751
22u 22 0.22/100
K3682
NI
QQL78AK-220
QQR1277-001Z K3684
QQR1277-001Z
MY
C3871
C3760 C3761
10/50
NI NI
-B +12V REG.
Q4001 1/4W
C3899
R4001
KTA1023/OY/-T 0.1/25
4.7
FR
-0.3V
R4003
220
C3895
R4004 NI
R3891
470 QNZ0136-001Z
15
Q4002 C3894
KTC3875/YG/-X R3892 NI QNZ0136-001Z
15
C3893
NI QNZ0136-001Z
R3893
15
CN302
QGB2510J1-15
C3177
220P/50
3 Lch OUT
C3178 C3180
0.022/50 0.022/50
4 Lch GND
C3179
C3277
220P/50 0.022/50
1
Rch OUT
C3278 C3280
0.022/50
0.022/50
2 Rch GND
C3279
C3577
220P/50
0.022/50
5 Cch OUT
C3578 C3580
0.022/50 0.022/50
6 Cch GND
C3579
NI
C3377
220P/50 0.022/50
9 SLch OUT
C3378 C3380
0.022/50 0.022/50
10 SLch GND
C3379
NI
C3477
220P/50 0.022/50
7 SRch OUT
C3478 C3480
0.022/50 0.022/50
8
SRch GND
NI
C3479
0.022/50
CN304
QGB2510J1-06
6
5
4
3
2
1
2 1 1
1 2 2
2 1
CN352
QGA3901F2-02
2 1
LVA10567-A2
D561
SLR-342MC-T12
3
2
1
EP302
EP303
EP304
FAN MOTOR
2
2
1
1
C3896
NI