JVC TH-C90A Service Manual page 57

Speaker input section for TH-C90
NOT USE
14 13 12 11 10
1 2 3 4
Q2001 NI
KRA102S-X R2005
NI
SUBWOOFER LIMITTER
Q2004
KRA102S-X 7.1V
R2021
10K R2027 IC203
4.5V D2021 22K RC4558D-X
6.5V 8
D2022
5 6.6V
1SS133-T2
7
0V 6
1SS133-T2
4
R2029
5.6k
-7.3V -4V D2023
-5.9V
R2028 3 1
22K
1SS133-T2
Q2003
2
KRC102S-X
-7.3V
R1616 12K
C1611
NI
R1626
R1615 3.3K
12K
C1604 C1605
0.0022/50 0.0022/50
C1622
SWch AMP
R1614
R1608
0.0027/50
C1603 R1604 4.7K
100/16 1K 10M
R1624
C1607
R1609
100P/50 220K
2.2K
C1601
10/50
32 31 30 29 28 27 26 25 24 23 22
- -
+ +
WARNING
1 2 3 4 5 6 7 8 9 10 11
C1501
R1502
5.6K 1/50 R1509
R1542
100K
2.2K C1507 R1524
R1504
100P/50
220K
R1514
R1508
1K C1542
180K
10M
C1503
100/16 C1514 C1522
C1504 C1505 0.01/50 100P/50
0.0022/50 0.0022/50
0.0027/50
C1512
Cch AMP
0.22/16
R1522
NI
R1513
C1513
5.6K
0.056/50
NOTES:
R2033
1.VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER
OR OSCILLOSCOPE WITHOUT INPUT SIGNAL. 22
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.
CLOCK OSCILLATOR
14 13 12 11 10 9 8
9 8
R2102
1 2 3 4 5 6 7
NI
-2.5V R2103
5 6 7
6.8K
R2001 R2101
1M R2003
NI
NI
NI
420kHz
C2003
NI
B1001 QUY150-050Y
NOT USE
C2102 NI
LOW FREQUENCY MIX AMP
R2104
C2111 NI
NI NI
IC211
R2112 RC4558D-X
NI C2101
NI
NI R2111 6
IC211
8
RC4558D-X NI
-
2 7
-
1 5
+
4
3
+
C1642
100P/50
Q1601
R1647
KTA1504/YG/-X
R1642
820
100K
21 20 19 18 17
Q1701
-
-
+
+
-2.5V
12 13 14 15 16
R1547
820
7.1V
FET PROTECTOR
Q2005
0V
0.6V
Q2007 Q2008
0V
KTC3875/YG/-X
SYSTEM CONNECTOR
11
9
GND
J1001
QND0118-001 C-ch
P-ON
8 7 6 SW-ch
SR-ch SL-ch
4
5 3
FR-ch
FL-ch
C1204 C1205
2 1 0.0022/50 0.0022/50
Rch AMP
TX,RX
R1208
C1203
100/16 10M
R1204
C1207
1K C1201
R1209 100P/50
R1202
1/50 2.2K
10k
32 31 30
P_ON
D1212
-
1SS133-T2 +
D1211
1SS133-T2
KTC3875/YG/-X
0V D1112
R1220 1 2
10K
R1102 C1101
10K 1/50 R1109
-2.3V
0V Q1212 C1107
2.2K
R1104
100P/50
R1108
1K
10M
C1103
1SS133-T2
100/16
C1104 C1105
0.0022/50 0.0022/50
Lch AMP
D1111
1SS133-T2
Q1112
KTC3875/YG/-X
0V
R1120
10K
-2.3V
0V
D1412
1SS133-T2
C1404 C1405
0.0022/50 0.0022/50
D1411
1SS133-T2
R1408
C1403
Q1412
KTC3875/YG/-X 100/16
10M
0V R1420 R1404
10K
C1407
1K
R1409
100P/50
-2.3V
0V R1402
C1401 2.2K
5.6K
0.022/50
SRch AMP
32 31 30
-
+
1 2
SLch AMP
C1301
D1312 R1302
5.6K 0.022/50 R1309
1SS133-T2
2.2K C1307
R1304
100P/50
D1311
R1308
1K
1SS133-T2 10M
C1303
100/16
Q1312
KTC3875/YG/-X C1304 C1305
0.0022/50 0.0022/50
0V
R1320
10K
-2.3V
0V
LIMIT/PRTCT
C_OUT
SW_PWMOUT1
SW_PWMOUT2
C1211
Q1211
0.0015/50
KTC3875/YG/-X
0V
C1222
-2.3V
Q1201
C1242 R1247 KTA1504/YG/-X
0.0027/50
100P/50
R1212 R1224
820
R1242
470K R1213 220K
47
100K
29 28 27 26 25 24 23 22 21 20 19 18 17
-
- -
+
+ + -2.5V
WARNING
3 4 5 6 7 8 9 10 11 12 13 14 15 16
R1147
820
R1142
100K
R1124
Q1101
R1112 R1113 220K
47
470K
C1112
1/50
C1122
-2.3V
Q1111 0.0027/50
0V
0V
KTC3875/YG/-X
C1111
0.0015/50
Q1411
C1411
0.0015/50
KTC3875/YG/-X
0V
C1422
-2.3V
Q1401
0.0027/50
R1447 KTA1504/YG/-X
R1412 820
R1424 R1442
470K R1413
47
220K 100K
29 28 27 26 25 24 23 22 21 20 19 18 17
-
- -
+
+ +
WARNING
-2.5V
3 4 5 6 7 8 9 10 11 12 13 14 15 16
R1342
R1347
100K
820
R1313 R1324
R1312 47 220K
Q1301
470K
-2.3V
Q1311 C1322
0.0027/50
0V
KTC3875/YG/-X
C1311
0.0015/50
C_PWMOUT
+5V
SW_OUT1
SW_OUT2
A/D_IN_L
A/D_IN_SL
A/D_IN_SR
A/D_IN_R
PRE_VCC
FET_PROTECT
PWM_CLK
TX/RX
P_ON
SSS_ON
1 LOUT
2
SSS_AMP_IN_L
3 L_PWMOUT
4 +7.5V
5 -7.5V
6
GND
GND
7 GND
8 R_PWMOUT
9 SSS_AMP_IN_R
10
R_OUT
11 SL_OUT
12 SSS_AMP_IN_SL
SL_PWMOUT
13
14 SSS_ON
15 SR_PWMOUT
16 SSS_AMP_IN_SR
17 SR_OUT
1 C_PWMOUT
2 +5V
3 C_OUT
4 SW_OUT1
5 SW_OUT2
6 SW_PWMOUT1
7 SW_PWMOUT2
8 SW_SIG
9 A/D IN L
10 A/D IN SL
11 A/D IN SR
12 A/D IN R
13 PRE_VCC
14 FET PROTECT
15 PWM_CLK
16 TX/RX
17
P.ON
2-11