(No.YA126)2-5
2-6(No.YA126)
!
C764
C766
C778
R101
L710
L711
L709
C765
C101
C753
C752
C751
R782
R004
R729
D101
C780
C750
C749
C748
L101
C746
C109
R107
Y004
R103
L716
D601
C721
IC601
SF101
L002
NECK
C615
R002
C107
SF102
R001
C004
IC801
C003
R766
R767
C001
C106
VER_PROTECT
R345
R778
C670
Y003
R670
C317
LC801
J801
VIDEO-1
INPUT
VIDEO-2
INPUT
MAIN PWB ASS'Y(3/3)
(CRT SOCKET)
CN10T
SPEAKER
OUTPUT
Y802
J802
Y801
R801
CN00S
K701
C779
C809
D813
Y981
C760
D603
Q760
R318
Q307
R320
R321
C316
Y713
C315
C313
R783
R779
C312
D706
C311
C310
C309
L303
R728
R726
R727
CN00T
C705
C757
C756
C718
C747
L706
C754
C755
R732
R733
R734
R735
L708
C758
C759
L707
X701
C709
C712
V_SHIFT
Q609
C761
C717
IC701
R005
C005
C706
R731
D708
R701
C710
C711
C762
R708
C763
R709
D701
R759
C713
R781
C714
C707
C708
R705
R703
R704
C716
C715
R706
R707
C719
C720
R780
TU001
CF101
C789
Q703
Y604
GND
C656
GND
K107
R604
R974
Y505
R606
R341
R344
R343
D341
STB1
R602
R603
R611
C985
C111
C986
IC976
R978
Q605
Y712
Q602
R610
C609
Q601
R609
R608
C607
C608
R623
R620
Q608
Q607
R621
C613
R624
R622
R616
D342
R810
GND
C802
GND
Y715
D805
R811
Q001
Q803
Q002
Q805
R814
R807
Q801
R808
R809
R802
D001
D343
D344
L301
D345
CF702
R342
C341
Q341
Y303
C314
R319
Y006
Y005
R006
Y716
C302
C303
R309
R312
C305
C785
C304
3.3V_STB
R324
8V
5V
R325
R326
R327
GND
R823
D807
C806
C807
Y603
R790
LC701
Y702
Y703
R328
R322
R323
CN00C
D303
K102
K105
32V
L717
C308
C307
C306
R308
C110
R307
W-A
R310
Q305
Q306
X301
L302
IC301
J808
J807
Y302
L702
L701
L703
C702
C701
Y791
Q791
K301
12V
C777
R760
R761
CP650
Y705
Y706
J806
Q701
GND
Y008
BL_GND
K104
W-A1
Y708
Q704
R737
R738
Q705
Q308
IC302
Y709
Q706
GND
GND
R756
D602
R626
C601
C742
R627
R625
CF701
Y701
R769
D801
W-B1
R793
R795
Q707
Q708
R796
D707
A_VCC
A_GND
Y973
R794
C804
R815
C792
Y301
Y711
Y102
VDRA+
VDRB-
Y101
H_DRIVE
P_ON/OFF
HFB
ABL
PROTECT
K106
GND
GND
Y822
R822
Y824
Y103
Y104
Y105
D753
D751
Y718
Y720
D713
D808
R824
D809
R671
Q761
R672
R673
R629
Q762
R628
Y810
Y809
C805
Y811
J809
R630
R674
R675
R632
C671
Y760
D815
D814
R792
R821
R820
R819
R818
C793
S801
S802
S803
S804
S805
C662
D816
K801
STB_IN
D001
TU001
R817
Q001
Q002
R006
R724
R825
R725
R722
R007
IC974
C965
C722
C983
R008
C006
Y005
Y006
R753
Q101
L001
R105
R106
R104
R108
C102
R102
Q102
Q103
R798
C108
C103
C104
R110
C105
C740
C737
C006
C736
R755
R003
R109
C002
K103
R715
C723
R797
C728
L705
Y710
R710
C739
C738
C726
C729
C732
R741
R742
R744
R746
R747
R749
R751
R754
R771
R757
C703
C704
R736
C767
L712
C775
L715
L704
C731
C734
C730
C733
L713
C769
C768
R745
R743
R758
L714
C773
C774
D714
C771
C772
D709
C776
R750
C770
C602
R785
C603
C604
D604
R614
C784
C610
R007
R008
Y007
R711
C781
C782
R762 R763
R764
R765
R712
C735
R752
D703
D702
D704
L003
C982
K101
R311
R314
R313
R315
R316
R317
R772
R777
IC702
R748
R784
R739
C743
W-B
D711
D712
C744
C745
R740
R776
C783
C791
R768
Y707
R773
C741
LC805
C727
Q702
R723
.1
.22
47/16
10
*4
*4
*4
100/16
.0047
.1
.1
.1
1.2K
27K
X
.1
.1
.1
.1
.1
.0047
4.7K
0
2.7K
*4
0
47/16
220
.01
220
470/16
.1
X
X
.01
18p
0
X
1
X
27K
.1
X
BW
BW
75
10/50
X
*8
X
.22
*3
*2
X
X
X
X
X
0
X
X
10K
10K
X
X
X
X
X
100
27K
560
3p
560p
.1
.1
10/50
*4
.1
10/50
1k
100
100
100
*4
.22
100/16
*4
.01
.22
*5
.1
.047
75
.0022
3p
3.3K
*3
12k
6800p
2.2/50
100/16
10k
.22
1M
*3
3.3K
10/50
4.7K
.022
.1
100/16
39k
100
100
.001
.001
220
22k
.01
.001
100K
*
X
47/50
*2
X
100/50
10K
1K
X
X
0
0
0
*3
22K
*3
10K
47/16
470/16
.1
3.3K
0
*2
100K
33/16
*2
27K
X
100/16
BW
33K
10K
*1
*1
2.2K
10/50
68K
10K
X
*3
390
10/50
*8
82K
*
*
*2
100K
100
X
0
0
*
*3
X
X
*3
X
X
220/16
*2
X
X
*
*
*
X
X
X
X
X
X
X
X
0
X
X
X
47
X
100/16
.1
BW
1K
X
X
X
X
X
0
X
*4
X
X
X
X
.1
X
X
X
X
X
X
X
X
X
*4
*4
X
.22
.22
X
X
.1
100
100
BW
X
X
X
X
0
*1
3.3K
10K
X
X
BW
10K
2.2K
3.3/50
10/50
12K
220
X
X
X
100
100K
*1
*2
0
*3
BW
2.2K
470/16
75
.1
X
X
1K
X
X
X
X
X
X
470
X
12K
*1
15K
8.2K
0
*2
X
0
0
X
BW
270
1K
270
X
X
*8
X
470
330
220
180
X
X
0
X
*
X
X
*
X
75
X
X
X
X
X
X
X
X
X
0
0
X
0
X
X
X
X
X
X
X
.1
X
47/16
10K
10K
10K
X
X
X
X
10K
10K
10K
X
X
X
33/16
2.2/50
2.2/50
2.2/50
33/16
33/16
33/16
0
X
X
X
0
0
0
0
X
X
X
0
0
0
1.2K
X
22
100
180
2.2K
.0047
6.8K
*5
*5
.0047
.0047
10/50
2.2K
.0047
.1
.1
*
.01
X
3.9K
2.2K
10/50
390
1
1K
.1
*4
BW
X
.1
.1
10/50
2.2/50
2.2/50
220
100
100
10k
100
1K
1K
220
1K
4.7k
X
X
100
.22
*4
.22
*4
*4
.1
.1
10/50
10/50
*4
.1
.22
3.3k
3.3k
3.3k
*4
2.2/50
.1
22/50
.22
*3
.1
X
.1
10/50
10K
X
X
X
100K
X
10/50
*
*
X
1.5K
1
.1
220
220
220
220
4.7K
.1
100
X
*8
*8
4.7/50
X
X
X
0
0
0
1.5K
X
2.7K
X
X
X
X
X
X
.1
X
X
X
X
0
0
4.7K
.1
X
3300p
X
X
SDA1
SCL1
5V
P_ON/OFF
VDRA+
VDRB-
5V
SCL0
PROTECT
1.8V
SDA0
L_OUT
PW
NECK
5V
V_OUT
CONT
3.58/OTHER
CONT
OFF_MUTE
L1
CVBS1
CVBS1_GND
PROT
CVBSO/PIP_GND
5V
5V
SDA1
CVBSO/PIP
VER_PROTECT
CVBS1_GND
STB1
5V
12V
STB1
V1.8A
A_VCC
NECK
SDA1
SCL1
SCL1
P_ON/OFF
4.5/OTHER
8V
A_GND
12V
STB1
V_SHIFT
VDRB-
VDRA+
1.8V
NECK
SCL0
SDA0
5V
STB_IN
H_DRIVE
ABL
HFB
L_AOUT
L_OUT
A_L
A_L
A_MUTE
PW_LED
REMOTE
8V
REMOTE
TIMER
Y_GND
A_MUTE
3.58/OTHER
SDA1
SCL1
V3
PW
H_DRIVE
HFB
12V
PROTECT
CVBS1
V_OUT
L3
P_ON/OFF
ECO_IN
ABL
V_SHIFT
ECO_IN
PROT
A_VCC
CVBSO/PIP
CVBSO/PIP_GND
OFF_MUTE
PW_LED
KEYIN
VER_PROTECT
5V
1.8V
ABL
5V
V1.8A
1.8V
1.8V
L1
4.5/OTHER
5V
L3
KEYIN
5V
8V
8V
5V
STB_IN
A_GND
L_AOUT
TIMER
Y_GND
V3
SVM
MAIN MICRO COMPUTER/
IF
㨯
VIDEO
㨯
RGB
㨯
SYNC
㨯
DEF.PROCESS
MAIN PWB ASS'Y (1/3)
SCW-1312A-H2 [AV-21YMG4/G]
SCW-1313A-H2 [AV-21YMG4/S]
Note: 1. Refer to part list for the part number of IC701 and IC702.
ޓޓ
2. Refer to page 2-15 for voltages of this circuit diagram.
3. Refer to page 2-16 for waveforms of this circuit diagram.
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM [AV-21YMG4/G,AV-21YMG4/S] (1/3)
