JVC AV-21WS24 Schematic Diagrams page 6

MAIN PWB CIRCUIT DIAGRAM (2/3),(3/3)
!
F901
CN0PW
!
!
! !
VA901
C910
!
S901
!
AC110V-AC240V
LF901
50Hz/60Hz
!
C901
!
CNDEG ! LF902
TH901
DEG COIL
!
C909
X
!
C902
R901
D901
!
C904
!
.001
C903
R930
C906
! *
C905
R902
47K
D926
R903
33K
K921
K901
K922
C931
C922
.1
R923
C926
.47
C928
1000P
D927
R934
R921 R924 1K
100
22K
D928
! IC921
R933
C921
X
*
R433
L551
R582
R583
C526 X
C527 X
C528
C582
C906
C524
C525
!
RY901
D956 C966
*3
100/16
R963
22K
Q955
*1
R964
47K
D957
IC971 D976
*3 X
X
R971
L971
X
X
C974 C973 C971
X X X
W-H1
! IC972
D980 R972
D974
C992 X
X
! Y972
C975
C991 C976
470/16
4700p
IC973
C955
!
R986
X
K955 CP955
*7
!
D955
T921 C979
C960
100/25
2200/35
1.8K
C915 C962 C963
C953 .1 .001
!
D977
K953 D953 CP953 *3
*7 *6
C916
X
Y951
C954
BW C958 IC975
X
470/25
K954 D954 CP954
Y952
X X X
X
K957 C959
C952
X X
! Y978
L994
K952 CP952 X
0
*7
!
C989
.1
R932
D952 C994
3.3/50
C957
D936
1000/16
C964 C949
100/35
1000/10
D922
D929
C940
*3 Y950
X
L951
C917
D951
D921
*6
C925 C951 C956
22/50
D958
R951
R935
1.5K
R980
X
R952 R950
D961
C911
X X X
X
R953
D931
1.8K
!
C950
PC901 R954 .1
X
D959
X
D910
X IC951
D960
X
!
R955
Q951
R991 X
X
8.2M Q982
Q952 X
X R959
R957 X
R956
X X
C969
R958
X
X
D963
X
!
C993
.001
MAIN PWB ASS'Y (2/3)
SCW-1037A-H2[AV-21WS24]
SCW-1029A-H2[AV-21WX14/G]
SCW-1030A-H2[AV-21WX14/S]
SCW-1031A-H2[AV-2154W/E]
ABL
PROTECT
STB1
STB
ABL
HFB
HFB
EW
EW
VDRB-
VDRB-
VDRA+
VDRA+
NECK
NECK P_ON/OFF
PROTECT
3.3V_STB
VER_PROTECT
P_ON/OFF
H_DRIVE
R475
32V
X
12V
VER_PROTECT
5V
IC401
PROTECT Q471
8V
X
D472
3.3V_STB
*3
R791
R471
1K 1.5M
STB1
A_VCC
C471
L972 10/50
R473
3.3V_STB 68K
R427
6.8K
R474
220K
C977 C978
C423 6800p C428
47/16 47/16
R437 C420
X
X
D422
D423
R438 X
C427
1000/35
12V
D971
C431
*3 D973
L973 C424 .18
*3 D471
PROTECT
R434
6.8K
C980 C981
100/16 100/16 R439 R435
L421 R430
R976
C429 X
BW X 12K
390 P_ON/OFF X
R451
X
R970 R431
X
8V
R440
C454
R452
X
X
C961
C984 C435
X
33/50
R455
C430 X
C436
R433
R448
* IC451
X
PROTECT 12V
C451
X
D975 R458
X
*3
L975 C452
X
R461
5V
X
R462
X
R981
C967 C968
10K
47/16 47/16
R463
X
R962
32V
!
Q522
D962
R524 T521
STB
R522
C523
22
47/35
A_VCC
Q521
R982 R520 C520
X 100 .1
H_DRIVE
C521
R521 .0033 C522
R983 D520
1K
.022
X *3
Q981
X
C987
X
R984 D981
X
X HFB
R985
C988
X
X
P_ON/OFF Y505
Y971
X
X
Y570
Y954
X
Y571
Y961
X
Y913
Y962
BW
X
Y953
Y963
BW
GND GND GND GND
Note: 1. Refer to page 2-15 for voltages of this circuit diagram.
2. Refer to page 2-16 for waveforms of this circuit diagram.
(No.YA113)2-7 2-8(No.YA113)
IC351
MAIN PWB ASS'Y(1/3)
CN 00T
C356
.0056
R354
150
R381
C352
X
R597 4.7/250
X
R380
D594 X
R596
X
X Q592
X
R595
D593
X
X
Q591
X
R594 C593
X
X
D591 D592
R592
X X
X
R593
C591
X C592
X
X
R591
X
CN10T
R426
12K
R453
C453
X
X
R454
R457
X D451
X X
R456 L551
X *
C556 !
X
R459 C555 R533
X
R554
R555 D555
D554 1.8K
X
X
R460
X C551
R464
X
R551
Q461
X
C553 D551
C531
X *6
C554 D552
R552
*6
L521
X
C552
C527
*
Y503 X
C582 *
Y504 X
D523
*6
C529 R529 R535
R570
! X X
X
R527
Y501 X
Y502 X
L522
C530 R528
470
CN0HV
!
DEF YOKE
!
!
SK351
R358
R359
R360
SG351 SG353
X X
SG352
X
!
R371
Q371 X
X
C359 SG354
R372
X X
Q372
X C358
X
R373
X
R377
X
Q373
X
R375
C371
X
X
D371 Q374
X X MAIN PWB ASS'Y (3/3)
R376 SCW-1037A-H2[AV-21WS24]
X
D372
SCW-1029A-H2[AV-21WX14/G]
X
K355
SCW-1030A-H2[AV-21WX14/S]
SCW-1031A-H2[AV-2154W/E]
R369
R370
120K
390K
C350
X
CN10U
CN00U
! T522
R582
*
D581 C581 R583
*
.1
*6 R581
8.2K
L530
D530 !
CN00X
R530
*6 C532
10/250
C580
X
ADJUSTMENT
CONNECTOR
R572
R571
X R573
1K
C572
100/16
C571
Q571
R574
18K
D571
R575
2.2K C573 R576
47/25
X
Q572
*5