Circuit Diagrams; Main Pwb Circuit Diagram [Av-21Ymg4/G,Av-21Ymg4/S] (1/3) - JVC AV-21YMG4/G Schematic Diagrams

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-21YMG4/G,AV-21YMG4/S] (1/3)

*
IC976
R978
Y981
3.3K
X
C985 C986
47/16 .1 Y973
BW
BL_GND
3.3V_STB
STB1
8V
A_VCC
A_GND
5V
12V
V_SHIFT
NECK
H_DRIVE
HFB
ABL
P_ON/OFF
VDRA+
VDRB-
PROTECT
VER_PROTECT
STB_IN
32V
TU001
*
C101 C111
R101
470/16
.0047
10
CF101
R005
X
75
C001 L101
.01
L002
C004
470/16
R001 C003
220 .1
C109
.0047
R103
R002
2.7K
220
C005
.0022
R004
27K
R006
*
D001
Q002
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.
*
D001
X X X X
TU001
Q001 X X X X
Q002 X X X X
MAIN PWB ASS'Y (1/3)
R006 0 0 X 0 X X X
R007 10K 10K 10K X X X X
SCW-1312A-H2 [AV-21YMG4/G]
R008 10K 10K 10K X X X X
C006 2.2/50 2.2/50 2.2/50 33/16 33/16 33/16 33/16
SCW-1313A-H2 [AV-21YMG4/S]
Y005 X X 0 X 0 0 0
Y006 0 0 0 0
X X X
CN00C
IC801
R824 R825
470 X D809 R822
D808
X 1K
D807 X
C806
100/16
R823 C807
47 .1
PROT
5V R779
Q703
10K
*2
SDA1
SCL1
R780 C789
R781
100K 47/50
4.7K
5V Q706
V1.8A
R796 R794
D707
C777 C778 0 *3 2.2K
D706 47/16
.1
C792
.1
R760
100 R783
SCL0 10K
Q708
SDA0 *2
Q705
R761 R974 Q707
R795
100
1K STB1 100K *1
R759
3.3K
Q791
SCL0
SDA0
Y791
C793
X R790
X PW
1K
R793
100
P_ON/OFF
IC974
! W-A1
R737
3.3K
L701 C701
*4
CONT 1.8V .22
L702
1.8V C702
*4 .22
W-A
L703 R792
X X
C965
C983 R738
.1
47/16 Q704
10K D713
*1
STB1
8V
A_VCC
C705
A_GND
3p
5V
C706
5V
12V 3p
X701
V_SHIFT L717
*4
NECK GND R756
NECK 10K
H_DRIVE
HFB CONT
C785
ABL X
C707
P_ON/OFF C709
.1 .01
VDRA+
C710 R701
VDRB- 6800p 12k
C708
PROTECT
100/16
VER_PROTECT
C711
C712
STB_IN 2.2/50
.22
4.5/OTHER C713 10/50
3.58/OTHER
C714 .022
C715 .001
SF102 VDRB- R703 100
C716 .001
C106
VDRA+
18p
C110 R704
.1 100
Y008
X
C717
.047
SF101 C718
.1
R107
4.7K
R705
D101
39k
C107
.01
C719 .01
Y004
0 Y003 R706
C720
X 220
.001
R707
22k
R708
10k
R709
1M
C721
47/16
Q001 D701
* *3
SDA1
*
Y005
*
* SCL1
Y006
*
Y701
X
CF702 CF701
X
K106
Y101
Y102
Y103
X
Y104
X
Y105
X
GND GND GND
S805 S804 S803 S802
IC302
R322 X
R326
X
D303 X
X
R325
X
R821 R820 R819 R818
R324 470 330 220 180
R323
0
0
Q308
R328 R327
X C317
X X
.1
W-B1
IC701
MAIN MICRO COMPUTER/
IF VIDEO RGB SYNC DEF.PROCESS
LC701
Y702
C742
X
10/50
Q760
*2
R769
X
CVBS1_GND
R766
X
Q701
Y760
X
X
C722
R767
X R675
X
R672
X
15K
C671 R670
Q762
X 27K
*2
R674
Q761
1K
*1
C670
1
R671
R673
12K 8.2K
K104
Y505 CP650
X
Y711
Y822 X K102
Y712
Y705
0
X K107
Y706 Y713
X 0 K105
Y824
Y709
BW
GND GND
GND GND GND GND
(No.YA126)2-5 2-6(No.YA126)
MAIN PWB ASS'Y(3/3)
(CRT SOCKET) VIDEO-2
CN10T INPUT
CN00T
J808 J807 J806
X
S801
R817
C805
75
X
K801 D815
D814
Y811
0 BW *8
R630 R632
R629
270 270
0
Y809 Y810
0 0
R628
X
C615
Y708
0
D341 *3
R341
D342 *3 0
D343 *3
R344
Q341
0
*2
D344
X
D345
R343
*3
0
R342
C341
X
220/16
Y718
X301 R320
X
C302 C316
X X
R307 IC301
C303 C315
Y720
X
X X X X
R308 C314
X
X
R309 C313
X
R310 X
X
C312
R312 X X
Q305
L711 X
Q306
*4 C304 C311
X
X X
C766 C765
.22 100/16
C305
C764 C310
.1 X X
L710 C309
*4
X
Y715
C763 L709
C306
.22 *4 X
C761 C762 C307
.1
100/16 X
L708 Y301
C308
*4 X
X
C760
L707
.22 *4
K301
C759
X
100/16
C758
.22
R735
R734 100
100
R733
L301
100
Y716
X
C757
R732 X
560p 1k
D708
R731
*3
3.3K
C756
L706
.1
*4
K701
C755
10/50
C779 C753 C754
10/50
.1 .1
C752 D753
.1 X
C751
.1
R782 D751
1.2K X
R729
X
C780
.1
C750
.1
C749
.1
C748
.1
C746 C747
L716
.1 10/50
*4
R728 100
R727 560 STB1
R726 27K
R725
X
IC601
R724 X
R778 X
R722
X
X
Y703
X
C656
R625
100/50
220
Q609
R604
*5 10K
R626
C601
2.2K
3.3/50
R602
22K
R627 12K
Y603
D601 R603
0 BW
*3
R606
X
D602 Y604 X
R611
C662 10K
X
D603
Q601 Q602
*3
*2 *2
Q605
C607
100/16 R608
X R609
C609
27K R610
C608 33/16 100K
BW
R623 R620
BW 33K 10K R621
2.2K
R622 Q607
10K *1
Q608
*1
R616 R624 C613
X 10/50
68K
SPEAKER
J809
CN00S
R345 Y303
0 5V
12V
Y302
X
5V
R321
X
X
R319
X
CVBSO/PIP
R318
Q307 X
X
CVBSO/PIP_GND
Y801
L303 X BW
R801
LC801 X
CVBS1 75
L302 X
CVBS1_GND
VIDEO-1
Y802 D816 J801
D801
BW
INPUT
L1
R802
5V 0
R815
75
R807
R808
100
X
J802 OUTPUT
R809
0 C804
V_OUT
470/16
C809 D813
X Q801 *8
D805
R811
*8 R810 82K
390
L_OUT
SCL1
SDA1 C802
10/50
NECK
Q803
Q805
*2
OFF_MUTE
R814
100K