Main Pwb Circuit Diagram [Av-25Ms16/H, Av-25Mx16/G, Av-25Mx16/S] (3/4), (4/4) - JVC AV-25MS16/H Service Manual

MAIN PWB CIRCUIT DIAGRAM [AV-25MS16/H, AV-25MX16/G, AV-25MX16/S] (3/4), (4/4) SHEET2
!
!
F901
AC110V-AC240V
! !
VA901 R910 !
50Hz/60Hz CN0PW
C910
!
*
S901
!
LF901
!
!
CNDEG C901
! TH901
DEG COIL
!
LF902
!
C902
R901 D901
!
Y910 Y911 C904
BW BW !
C903
CN00D
*
!
C905
R902
K921
C921
C922
.01
D927
R923
5.6K
IC921
D923
!
R924
D924
X
C924
D925
.1
D928
X
*
CN0PW
C906
T921
C358
R432
R433
Q522
L551
C524
C527
C582
W-X X X X X X
W-Y X
X X X X
Y951 X BW BW BW BW BW
Y957 X BW BW BW BW
BW NOTE) 1. Refer to page 2-19 for voltages of this circuit diagram.
Y965 BW BW
X BW BW BW
Y966 X BW BW BW BW BW
Y570 X BW BW BW BW BW
Y571 X BW BW BW BW BW
Y572 X BW BW BW BW BW
!
RY901
D956
C966
*3
100/16
R963
C964
22K
X Q955
*1
R964
IC971
22K
D957
*3
C973
100/16
C962
X
!
C991
!
C992
R965
!
T921 C955
!
*
K955 CP955
*7
D955
C960
2200/35
*
C952
!
K952 CP952
*7 R977
D926 C916
X
*9 D952
C957
2200/10
Y953
X
C953
!
K953 CP953
*7
D953
C958 R957 Y955
2200/25 3.3K X
C954
!
K954
CP954
*7
R926
D954
C959
C963
!
CP951
K951
L951
D921
D951
*9
C951
C965
C925 C956
X
22/35
R951
3.3K
C926
R952
X X
R927
R953
15K
1.8K
C950
0.1
!
PC901
D950
X
!
R991 8.2M
!
C993 1000pF
MAIN PWB ASS'Y(3/4)
SCW-1909A-H2 [AV-25MS16/H]
SCW-1922A-H2 [AV-25MX16/G]
SCW-1924A-H2 [AV-25MX16/S]
2. Refer to page 2-20 for waveforms of this circuit diagram.
MAIN PWB(1/4)
SHEET1
12V
3.3V_STB
5V
12V
8V
32V
H_DRIVE
P_ON/OFF
PROTECT
D976 R421
*3 10K
5V Q422
*1
Q421
IC401
IC972 *1
R471
270K
R472
10K
R473
68K
3.3V_STB
R474
C428
220K
220/35
C423
C977
47/35 6800p
R438 X
P_ON/OFF
C424
R978 D423
1K
IC975
PROTECT
C427
1000/35
D424
*3
D975
C431
D972 0.18/50
*3
R434
6.8K
5V
L421
R430
12K
C995
C967 C994 R440
R431
X 47/35
3.3/50 X
Y952
C430
R432
*
R433
*
C435
IC973
C436
D973
*3
R448
1
D971
*3
12V
R970
C980 1.8K
47/35 8V
D970
!
Q522
R524 T521 *
R525
C523 R522
X
22
47/35
Q521
R523
R520
C520
100
.1
W-X H_DRIVE
*
C521
.0033 C522
R521 D520
1K *3 .022
Y951
*
W-B
Y957
*
Y570
*
32V
IC951 W-X1
*
D962
W-E
X
W-D
X
GND GND GND GND
(No.YA445)2-7 2-8(No.YA445)
IC351
C352
4.7/250
D595 X
D593
X
Q591
X
R594
C593
X X
D591 D592
R592
X X
X
R593
Q372
C591
X C592 X
X
X
Q373
X
R591
X
CN10T
R350
X D371
X
R426
12K
MAIN PWB ASS'Y(4/4)
(CRT SOCKET)
SCW-1909A-H2 [AV-25MS16/H]
SCW-1922A-H2 [AV-25MX16/G]
SCW-1924A-H2 [AV-25MX16/S]
!
L551 T522
*
!
C555 R533
R554
D554 1.8K D555
X
R461
82K
C551
R462
Q461 R551
C553 D551
C531
1000/25
*9
C554 D552
R552
1000/25 *9
L521
C552
C527
*
Y503
X
C582
*
W-Y1
*
Y504 Y966
Y965
X * *
! D523
*9
C524
C529
Y571
Y572
* *
R527
D522
W-Y
*
R569
R570 R571
100/16
X X
R962
C571
Y505
X
Y502
Y972
X
Y960 Y971
L522
0
Y958 Y970
X
BW
Y954 Y967
C530 R528
470
GND GND
CN0HV
DEF YOKE
!
!
!
R358 SK351
R359
R360
SG351 SG353
X X
SG352
X
!
SK351
Q371
R371
X X SCREEN
R372
X
SG354 C358
X *
R373
X
R377
X
R375
X C371
X
Q374
X
R376 D372
X X
K356
X
Y361
R369
100K
GND
GND
CN10U
CN00U
R582
120K
R583
C581
180K
D581
.1
*9 R581
8.2K
L530
!
D530 *9 R530
C532
10/250
CN00X
X
OPEN
R572
4.7K
C572
R573
820
CN00B
ADJUSTMENT
CONNECTOR
Q571
R574
18K
Q572
D571
R575 C573
2.2K 47/35
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