JVC RX-D302B Service Manual page 30

PWM modulator and master clock section
FRONT_R
R301 C301
1k 10/50
FR
F.GND
FL
R201 C201
1k 10/50
FRONT_L
A.NFB_FL
D.NFB_FL
LIMITTER
+B_DET
PWM_TH
D.NFB_C
A.NFB_C
CENTER
R801 C801
1k 10/50
C
C.GND
BLK_PWM1
CN302
QGB2510J1-17
(SHEET 4)
2-7
R333
C332
4.7k
33p
C331 R331
100/16 1k
R332
100k
R334
1k
R335
10k
C307
0.0022
R310
1M
R311
2.2k
C309
R305
100p
1.5M
C312
470p C303
10/50 R314
100k
R303
1K
C311
100p
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
- -
- + - + -
+ + +
L i m i t e r
L o w V &
T h e r m a l R e g
W a r n i n g
L i m i t e r
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R214
100k
C203
R203 10/50
C212
1K
470p
C209
100p
R205
1.5M R211
2.2k
R210
C207
1M
0.0022
R235 10k
R234 1k
R232 100k
C231 R231 R233
100/16 1k 4.7k
C232
33p
D221
1SS133-T2
R223
1k
Q211
KTC3875/YG/-X
C227
100/16
Q212
NI
R833
C832
C831 R831 4.7k
33p
100/16 1k
R832
100k
R834 1k
R835 10k
C807
0.0022
R810
1M
R811
2.2k
C809
R805 100p
1.5M
C812
470p
C803
R814
10/50
100k
R803
1k C811
100p
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
- -
+ +
- - -
+ + +
L i m i t e r
L o w V &
T h e r m a l R e g
W a r n i n g
L i m i t e r
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
CN301 to CN302
QGB2510K1-17 of LVA10578-1
Q214
KRC102M-T
D222
MTZJ16B-T2
C821
100/16
LVA10578-2
Q301
KTA1268/GL/-T
VEE
VCC
C324
0.1
IC202
SN74LVC3G04T-X
Q201
KTA1268/GL/-T
R318
10
UNF
1/4W
R319
10
UNF
1/4W
Q213
NI
Q801
KTA1268/GL/-T
D211 D1211
1SS133-T2 1SS133-T2
D311 D1311
1SS133-T2 1SS133-T2
D811 D411
1SS133-T2 1SS133-T2
D1411
1SS133-T2
CN222
QGB2510J1-14
FROM CN522 OF LVA10577-3
SURROUND_R
R1301 C1301
1k 10/50
SR
1
2
3
S.GND
SL
R1201 C1201
1k 10/50
SURROUND_L
+7V
1
2
-7V
3
M_CLOCK
4
A.NFB_SL
D.NFB_SL
+7V
1
-7V
2
LIMITTER
D.NFB_SBR
A.NFB_SBR
SURRBACK_R
1
2
R1401 C1401
1k 10/50
SBR
SB.GND
SBL
R401 C401
1k 10/50
SURRBACK_L
BLK_PWM2
(SHEET 9)
C1332 R13
33p 4.7k
C1331 R1331
100/16 1k R1332
100k
R
1k
C130
R1310 0.0022
1M
R1311
2.2k
R1305
1.5M
C1312
NI
C1303
10/50
R1303
0
C1311
100p
32 31 30 29 28 27 26 25 24 23 22 21
- -
- + - +
+ +
L i m i t e r
L o w V &
T h e r m a l
W a r n i n g
L i m i t e r
1 2 3 4 5 6 7 8 9 10 11 12
R1203
0
C1203
C1212
10/50
NI
R1205
1.5M
R1211
2.2k
R121
1M
C1207
0.0022
R1235
R1234
R1232
C1231 R1231 100k
100/16 1k
C1232 R123
33p 4.7k
C1432 R143
33p 4.7k
C1431 R1431
R1432
100/16 1k
100k
R1434
R1435
C1407
0.0022
R1410
1M
R1411
2.2k
R1405
1.5M
C1412
NI
C1403
10/50
R1403
0
C1411
100p
32 31 30 29 28 27 26 25 24 23 22 21
- -
+ +
- -
+ +
L i m i t e r
L o w V &
T h e r m a l
W a r n i n g
L i m i t e r
1 2 3 4 5 6 7 8 9 10 11 12
R403
0
C412
NI
R405
1.5M
R411
2.2k
R4
1M
C407
0.0022
R435
R434
R432
100k
C431 R431
100/16 1k
C432 R433
33p 4.7k
CN401
QGB2510K1-16
CN402
QGB2510J1-16