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MAIN PWB CIRCUIT DIAGRAM (2/3), (3/3)
!
F901
CN0PW
!
!
!
VA901
C910
!
X
AC110V-AC240V
S901
50Hz/60Hz
!
LF901
!
TH901
CNDEG
Y909
X
DEG COIL
Y910
X
!
!
C901
R904
C909
!
X
LF902
!
C902
R901
D901
!
C904
!
.001
C903
!
C906
C905
R902
R903
K921
K922
C931
C924
4.7/50
R923
1.8
C928
220p
R921
D927
220
C922
D935
D934
.1
X
R924
68K
D928
IC921
D932
D933
MAIN PWB ASS'Y (2/3)
SCW-1171A-H2
NOTE) 1.Refer to page 2-11 for voltages of this circuit diagram.
2.Refer to page 2-12 for waveforms of this circuit diagram.
All manuals and user guides at all-guides.com
!
R972
D974
C992
X
X
Y972
!
C976
C975
C991
4700p
470/16
Y965
R965
X
C929
C955
!
R930
CP955
K955
!
T921
D955
C979
*6
C960
100/25
2200/35
C915
X
D926
C962
C963
.1
.001
C953
!
CP953
D953
K953
C958
330/35
R977
X
L954
Y977
K957
BW
X
C952
!
CP952
R986
C926
C989
10k
.1
R932
D952
C957
R934
1000/16
5.6K
C964
C949
100/35
1000/10
D922
C940
Y950
X
L951
D951
D921
C925
C951
C956
22/50
R982
1k
R983
0
Q981
*1
C987
22/50
Y401
X
Y913
BW
Y914
Y915
Y916
Y917
!
K954
R991
8.2M
Y971
BW
!
GND
GND
C993
.001
ABL
VER_PROTECT
PROTECT
STB1
STB
ABL
HFB
HFB
V_SHIFT
VDRB-
12V
VDRA+
NECK
NECK
PROTECT
V_SHIFT
3.3V_STB
P_ON/OFF
H_DRIVE
R475
X
32V
VER_PROTECT
12V
D472
5V
*3
PROTECT
Q471
X
8V
IC401
R471
3.3V_STB
V.OUT
1M
C471
R791
4.7/50
STB1
A_VCC
IC972
L972
D471
R473
X
100K
3.3V_STB
C428
R474
D791
100/35
220K
C977
C978
47/16
47/16
C426
D420
D422
X
D423
X
IC973
C423
C401
R402
470/16
10K
R428
R422
X
X
R425
R424
15K
R435
15K
1K
12V
C421
4.7/50
D971
L973
D973
*3
*3
C403
R426
PROTECT
.1/50
C425
1K
R433
2200/25
3.3
R405
R421
C980
C981
C402
3.3K
100/16
100/16
X
X
C430
R976
R434
390
P_ON/OFF
6.8K
VDRB-
L421
R970
BW
820
8V
VDRA+
R427
X
R439
R440
R412
R411
X
470
C435
3.9K
3.9K
C961
C984
X
47/25
R448
C436
1
IC975
PROTECT
D977
*3
D975
*3
L975
5V
R981
10K
C967
C968
47/16
47/16
R962
32V
!
Q522
D962
T521
R524
STB
R522
C523
R980
56
4.7K
47/35
Q982
D981
*1
R984
15k
Q521
HFB
R520
C520
C521
.1
100
.0033
R985
C988
H_DRIVE
18k
22/50
R521
C522
D520
1K
8200p
*3
(No.YA340)2-7
2-8(No.YA340)
IC351
R597
X
C352
4.7/250
D594
R596
X
X
Q592
X
R595
D593
X
Q591
X
X
R594
C593
X
X
D591
D592
R592
X
X
X
R593
C591
X
C592
X
X
R591
D371
X
CN10T
R430
D421
56K
*3
R429
10K
Q402
*1
C420
1/50
R431
1K
L551
C556
X
L525
C555
BW
R554
R555
1.8K
D555
!
D554
X
R533
X
C551
R551
D551
*6
C527
C582
X
D523
C529
R527
Y570
Y571
GND
GND
R529
X
Y501
X
Y502
X
L522
C530
R528
470
Y581
Y582
X
CN0HV
!
DEF YOKE
!
!
SK351
R358
R359
R360
SG353
SG351
X
X
SG352
X
!
SK351
R371
33K
SG354
X
R372
C358
33K
X
R373
33K
R377
C359
12K
R375
C371
X
220/16
*3
Q374
R376
5.6K
D372
*3
K355
MAIN PWB ASS'Y(3/3)
R369
R370
(CRT SOCKET)
100K
X
C350
SCW-1171A-H2
X
CN10U
CN00U
!
T522
R585
0
D583
R581
X
R582
1.8K
27K
D581
*6
R583
33K
D582
C581
R584
L530
.1
X
!
R530
D530
*6
CN00X
C532
10/250
C580
X
ADJUSTMENT
CONNECTOR
R572
C572
R573
X
100/10
R571
C571
Q571
R574
22K
Q572
D571
*1
R575
3.9K
C573
R576
47/25
10K
CS21201
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