JVC AV-48WP30 Service Manual page 104

AV JACK PWB CIRCUIT DIAGRAM [2/3]
J301
X
VIDEO1
COMPONENT
J321
QNN0463-001
VIDEO2
COMPONENT
J341
QNN0463-001
VIDEO3
COMPONENT
CN0AE
X
DBS_Y
DBSYGND
DBS_CB
DBSCBBND
DBS_CR
DBSCRGND
DBS_HS
DBS_VS
BLANKER
GND
No.51914
AV-48WP30
C301
X
R301 X
LC301
R302
X
X
R303 X
C302 IC421
X
R304 X X
VI/V2
Y
LC302 R305
X X
GND
R421 L
X B
3.2V
R306 X C303
X
R307 X H
D421
3.2V
X
L
Vcc H GND
LC303 R308
X X
L
B
3.2V
H
GND
R309 X
R422
X
R
D422
X
C321
R405
47/25
R321 X 0
Y
LC321
R322 D405
NQR
75 *9
R323 X
C322
47/25
R324 X
B
R402
0
LC322 R325
*9
NQR 75
D402
R326 X
C323
47/25
R327 X
R
R404
0
D404
LC323
R328 *9
NQR
75
R329 X
C341
R401
1/50
R341 X 0
Y BSDY
LC341 R342 D401
NQR 75 *9
BSD_YG
R343 X
C342
R403
1/50
R344 X 0
B BSDB
D403
*9
LC342 R345
NQR 75
BSD_BG
R346 X
C343
R409
1/50
R347 X 0
R BSDR
D406
LC343 R348
*9
NQR 75
BSD_RG
BSD
R349 X
BSD_H
BSD_V
AV-48WP30
R441
0
L421
X
C421 R436 0
R423
X
X
CF1
R445
Y
X
D423
R446
X C422
X
X
Y
CF1
R431
R424
X
B X
R425
X
R426
R X
R
R437
R432
X V1_V3
X
R430
R_GAIN X
Q422
X
INVERTER
R410
0
R411
0
R412
0
RECEIVER PWB
(2/3)
(COMPONENT VIDEO INPUT BLOCK)
SSB-0J051A-M2
2-51 2-52
9V
COM_G
COM_Y
COM_YG
COM_B
COM_BG
COM_R
COM_RG
R448 X
Q424
R434
X
X R438 0
BSDY
MFR BSD_Y
BSD_YG
BSD_YG
R435 R439 0
BSDB
X BSD_B
R447
BSD_BG
MFR
X BSD_BG
R440 0
BSDR
BSD_R
BSD_RG
BSD_RG
BSD_H
BSD_H
BSD_V
BSD_V
H
H
COMPOSITE
VIDEO
BLOCK
R442 X
Q423
X
IC422
BUFFER
X
R433
X R443
R444
X
X
V1_V3
V1_V3
R_GAIN
R_GAIN
MOTE
:
*1 2SC2412K/QR/-X
*2 : 2SA1037AK/QR/-X
:
*3 1SS355-X
:
*4 2SC3837K/NP/-X
*5 : UDZS5.1B-X
:
*8 UDZS8.2B-X
:
*9 UDZS9.1B-X
:
*10 UDZS10B-X
:
X NON MOUNT
No.51914
INPUT