JVC AV-27F577/R Service Manual page 38

MAIN PWB CIRCUIT DIAGRAM (2/2) SHEET 2
R427
R428 12 12 12 OPEN OPEN
R434 220 220 220 180 180
R435 1k 820 820 1k 1k
R456 OPEN OPEN 390 OPEN OPEN
R504 1.5k 1.5k 1.5k 1.8k 1.8k
R505 1.8k 1.8k 1 1.8k 1 .8k .8k
R527 150k 150k 150k 150k 150k
R528 150k 150k 150k 150k 150k
R535
R537
R545 8.2k 15k 8.2k 8.2k 8.2k
R553 33 33 33 39 39
R554
R555
R972
CN00W
L/F PWB
CN900W
SHEET 8
!
TH901
CNDEG
!
C909 C905 C906
OPEN .001 OPEN
R902
OPEN
C904
OPEN
D911
R901
R911
22k
C907
GND1
R930 F905
22k OPEN
C919
HS002 .01
C914
100
K917
*4
K916
GND1 *4
D917
K918
*4
R913
K912 .15
*4
! R912
R914 C913 .18
680 470p
GND1
!
D910
IC911
D912
C920
OPEN
GND1
D914 D913
D918 C917
.0018
!
R917
3.3k
L/ F PWB
CN900F
SHEET 8
CN00F
GND
T502
L511
L512
L521
C507
C508 OPEN OPEN OPEN
C510
C513
C514
C515
C523
C531 OPEN OPEN OPEN
!
RY951
D945
Q951 D953
R954
R950
0 GND
R951
R953
47k
82
GND GND GND
!
D901
C941
.001
Y906
BW
! !
C908 CP936
.001 K935
*4
D935 D946
OPEN
C935
Y907
T921
!
R919
680k
K937
*4
R909
47
C939
1500P
D915
K920
C934
220p
Y914
Y910
Y916 OPEN BW D934
OPEN OPEN
C912
2200p CP932
Y917
BW
OPEN
K933 D933
*4 C933
1000
C937
R915 1000P
Y912
BW
K914 K932
BW *4
Y913
R918 OPEN
2.2K
K931 D931
*4
C916
330p
Y909
OPEN C931
100
GND1
L940 C925
GND
OPEN
GND
R924
D920 2.2k
!
C918
.1 PC921
!
IC921
C922
OPEN
GND
MAIN PWB ASS'Y(2/2)
SGJ-1308A-M2 [AV-27F577/R]
SGJ-1302A-M2 [AV-27F577/S]
SGJ-1313A-M2 [AV-32F577/R]
SGJ-1301A-M2 [AV-32F577/Y]
! !
SGJ-1307A-M2 [AV-32F577/Z]
C999 C998
.01 .01
GND1 GND
MAIN PWB (1/2)
SHEET 1
D423
OPEN
R431
1.5k
R432
100
C433
47
R421
8.2k
C435 R429 R422
C403
.018 2.7k OPEN
OPEN
Y494
OPEN
AC
D954 D957
STB_VCC
D955 D956
R940
180
!
R531 390
C951
470
C526
GND D952 .82
C952
220
R952
1k
MAIN_POW
C950
OPEN
Y905
Q532
OPEN R532
R533
27K
12k
R939 D535
OPEN
AU_VCC
R534
12k
!
Q531
R942
0.68
R538 C533
R967 R968 33k 10
OPEN OPEN
AU_GND
C949 R933
OPEN OPEN
L937
8V
D937 CP933
OPEN BW
D938
C502
330p
C943
C932
220
1000
Q501
C501
L933
47 R501 150p
0
15V
R502
220
C938
227/25
R503 10k
R505 R504
* *
L931
47
R941
18
BT
K936 D941
C942
OPEN
1
GND GND R543
1.2k
Q541
R546
330
R547
100k
R973
R972
2.7k
*
C971
100
Q971
R975
22k D972
R977 C972 R978 D973
47k 47 33k
(No.YA387)2-7 2-8(No.YA387)
IC421
HS003
C430
OPEN
C424
R433 100
680
D421
C440
R423 R424
39k 39k
C425
K401
R426 R441 470
18k 0
D422
R434
C427
*
2.2
C431
.056
C428
2200
S421
R435
R428 R427 R456 *
* * *
D527 R523 R524
OPEN 56k
R557
L521
T502
*
C531
*
R555
*
C523 D523
*
D525
! ! FR525
R537
D534 D531 ! C528 OPEN 4.7 R536 47
*
R535
*
C525 C527 .01
100
R529 R526
FR527
330 2.7k
OPEN
R522 D526
OPEN
D529
!
!
C513
C510 *
!
Q511 *
T501
D501
C505 D507
OPEN OPEN
HS004
R511
22
C514
*
D502 R513
OPEN
R516
C503
C504
100
C515
*
L513 L512
OPEN *
R544
3.9k R545 R553
* *
C508 C507
R549 R550
* *
OPEN OPEN
Q542
R548
1.5k
Q543
HS005
Y501
BW
GND GND
Vcc
VDY
CN0S1
R527
*
CN00A
R528
*
OPEN CRT SOCKET PWB
CN300A
SHEET 4
*
CRT SOCKET PWB
SHEET 4
C522
!
OPEN
R554
*
D521
C521
10
CN0HV
L511 *
R512 C516
680 560p
CN0E1