JVC AV-21WS24 Schematic Diagrams page 5

CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3)
MAIN PWB ASS'Y
SCW-1037A-H2[AV-21WS24]
SCW-1029A-H2[AV-21WX14/G]
SCW-1030A-H2[AV-21WX14/S]
SCW-1031A-H2[AV-2154W/E]
D706
!
IC976
R978
Y981
3.3K
X
C985 C986
47/16 .1 C983
Y973
BW 10/16
BL_GND
STB1
3.3V_STB
8V
A_VCC
A_GND
5V
12V
3.3V
NECK
H_DRIVE
HFB
ABL
EW
P_ON/OFF
VDRA+
VDRB-
PROTECT
VER_PROTECT
32V
TU001
*
C111
C101 470/16
R101
.0047
10
C110
CF101
R005
X .1
75
C001 L101
.01
L002
R107
4.7K
C004
470/16 D101
R001 C003
220 .1
C109
.0047
R103
R002 2.7K
220
R105
Y004
22
0
C005
.0022
R004
27K
R006
0
R008
10K
D001
Q002
Y006
X
*
TU001
Note: 1. Refer to part list for the part number of IC701 and IC702.
2. Refer to page 2-15 for voltages of this circuit diagram.
3. Refer to page 2-16 for waveforms of this circuit diagram.
CN00C
IC801
R824 R825
D808 470 X D809
X R822 D303
X
1K
D807 X
C806 R323
0
100/16
Q308
R823 X
C807
47
.1
PROT
5V
R779
Q703
*2 10K
SDA1
R781
C789
4.7K R780
SCL1
47/50
100K
Q706
5V R755
V1.8A 1.2K
R796 R794
D707
C778 0 2.2K
*3
C777
47/16
.1 C792
R760 .1
100
SCL0 Q705
Q708
*2
SDA0
R795 Q707
R761
100K *1
100 R974
1K
STB1
Q791
SCL0
SDA0 R793 100
Y791 R790
PW
X 1K
P_ON/OFF
D713
IC974
W-A1
R737
3.3K
L701
C701
*4
1.8V .22
CONT
L702 C702
1.8V
*4
.22
R738
10K
R792
33
C965
Q704
W-A L703
.1 *1
*4
STB1
8V
A_VCC
C705
A_GND
3p
5V
5V C706
3p
12V
L717 X701
*4
3.3V
R756
NECK GND
10K
NECK
H_DRIVE
CONT
HFB
C785
ABL X
C707
EW C709
.1
.01
P_ON/OFF
C710 R701
6800p 12k
VDRA+
C708
VDRB- 100/16
PROTECT C711
C712
2.2/50
VER_PROTECT .22
MAIN MICRO COMPUTER/TELETEXT DECODE/
C713 10/50
4.5/OTHER
3.58/OTHER C714 .022 IF VIDEO RGB SYNC DEF.PROCESS
R702 100
EW
C715 .001
SF102 VDRB- R703 100
C716 .001
C106 VDRA+
18p
R704
100
Y008
X
C717
.047
SF101 C718
.1
R705
C107
39k
.01
C719 .01
Y003 R706
C720
X 220
.001
R707
22k
R708
10k
R709
1M
D701
*3
Q001
SDA1
Y005
SCL1
X
Q701
X
Y701 C722
X
X
L651
X
CF702 CF701
X X
R651
R653
X
X
K108
K102
R654
X
K105
R655
K106 X
D651 C651
X
K107 R656
X R652
X
X
Y101
BW
Y102
Y103 X
X
Y106
Y104
X
X
Y107
Y105
X
GND GND GND GND
(No.YA113)2-5
S805 S804 S803 S802 S801
IC302
R322
R326
X
X
R821 R820 R819 R818
R325
470 330 220 180
R324 0
0
R328
R327
C317 0
1/50 330K
R753
1.2K
C766 C765
.22 100/16
C764
.1
C763
.22
C761
.1
C760
IC701
.22
C758
.22
R734
100
C757
560p
C756
.1
C779
C753
10/50
.1
C752
.1
C751
.1
R782
1.2K
R729
X
C780
.1
C750
.1
C749
.1
C748
.1
C746
.1
R728
R726 27K
R724
R778
LC701 X
Y703
0
R766
X
R767
X
C657
R663 C662
X
X
10/50
R664 D603
C658
X
*3
X
IC651
IC651 C659
X
Y601
X X C607
X
220/16
C654
R657 R658 R659
X X C608
X X
C653 220/16
X W-H
C652
R660 R661
X X X
! CP650
C660
X
Y709
BW
Y711
Y712
X
Y713
K702 X
X Y714
BW
Y813
X
GND GND GND GND
2-6(No.YA113)
MAIN PWB ASS'Y(1/3)
(CRT SOCKET) VIDEO-3
CN10T INPUT
J806
CN00T
J808 J807
J809
R817
C805
X
X
D815
R630 R632
D814
Y811 270
270
*8
R631
R633
R629
R626 1K
1K
0 0
LC805
R627 R628
X X
D341 C615 C616
R341
D342
0
D343
R344 R345 Y303
Q341 22 0
Y301 X
*2
X
D344
X
R343 D345
Y302
D349 0 *3
X
R342
X
C341
100/16
Y718 R320
X301
R321
X X
X R319 X
X
C302 C316
X X
Y720 R307 C303 IC301 C315
X
X X X X
R318
Q307 X
C314
R308 C342 X
X
X X
R309 C313
X X CVBSO/PIP_GND
R310
X
C312
R312 X X
Q305
L711 X
Q306 C304 C311
*4
X X X
L303
X
C305 C310
X X
L710 L302
C309
X
*4 X
L709 Y715
C306
*4
X
C762 C307
100/16 X
L708
C308
*4
X
L707
*4
C759
100/16
K301
X
R735
100
Y822 L301
X
R733
100
R732
1k Y824
R731 D708 *3
1k
L706
*4
C755 Y812
10/50
X
C754
.1
D753
*8
Y705
0
Y821
D751 Y706
*8 0
C747
L716
10/50
*4
100
R727 560
R725 AUDIO AMP
X
X
X
IC601
R722
X
D602
X
R617
C605
R601 X
.22
2.7K
A_R R637 4.7K
R662
X C606
R638 X
.22
R602 2.7K
R639 4.7K
D601 R640
0 R603 *3 1K
R607
Y603 X
2.2
D607
Y604
R611
10K
Q601 Q602
*2 *2
Q606
X
R608
X R609
C609
27K R610
33/50 100K
Y605
0
R623 R620
33K 10K R621
2.2K
R622 Q607
10K *1
Q608 C661
*1 220/16
R616 C613
R624
X 10/50
68K
SPEAKER
CN00S
R816
C1_GND 75
C1
5V
S_V_DET
12V
Y801 R801 Y819
BW
X 75
LC801
Y1/CVBS1
Y_GND
S1
Y802
L304
X
X
D817
Y717
5V VIDEO-1
J801
S-VIDEO
C318 V1
VDO_DET
X
INPUT
R802
L1 0
L1
CVBSO/PIP
Y818
D801 0
R1
R1
R803 D802
0
Y817
3.3V
0
D810 R804
Y803 X *8 75
LC802
V2/Y
V2/Y_GND
Y804 X
Y816
Y805 X
0 R805
LC803 VIDEO-2
J802
PB 75
PB_GND
COMPONENT
VIDEO
Y806 X
D811
INPUT
*8
Y807 X Y825
LC804
BW
PR
PR_GND
R806
75
Y_GND
Y808
X
D812
*8
SCL1
SDA1
L2
NECK
J803
D803
R2
D804
PB
V2/Y
V2/Y_GND
PR
PR_GND
BASS
J805
X OPEN
5V
R807
R808 C804
100
X 470/16
R809
0
V_OUT R815
75
D813
J804
Q801 *8
C809
X
L_OUT
OUTPUT
R811
C802 82K
R_OUT
10/50
C803 R812
390
10/50
R813
82K
Q803
Q805
*2