(No.YA113)2-5
2-6(No.YA113)
!
MAIN MICRO COMPUTER/TELETEXT DECODE/
IF
㨯
VIDEO
㨯
RGB
㨯
SYNC
㨯
DEF.PROCESS
!
R753
C764
C766
3.3V
R101
L710
L711
L709
C765
C101
C753
C752
C751
R105
R782
R004
R729
D101
C780
C750
C749
C748
L101
C746
C109
R107
Y004
R103
L716
D601
SF101
L002
NECK
LC803
R755
R002
C107
SF102
R001
C004
IC801
C003
R766
R767
C001
C106
R345
J803
Y003
K702
R804
LC802
IC601
Y804
Y803
R806
Y806
Y805
LC804
Y808
J802
D813
Y807
C760
D603
R318
Q307
R320
R321
C316
D810
C315
C313
D811
D812
C312
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
Q791
Y816
C761
C717
IC701
R005
C005
C706
R731 D708
R701
C710
C711
C762
R708
C763
R709
D701
C713
R702
C714
C707
C708
R705
R703
R704
C716
C715
R706
R707
C719
C720
Q705
TU001
CF101
R617
D602
C605
C606
R607
R637
R638
R639
R603
R611
Q606
Q602
R610
C609
Q601
R609
R608
C607
C608
R623
R620
Q608
Q607
R621
C613
R624
R622
R616
R341
R812
C802
C803
R811
R813
Q803
Q805
C809
R808
Q801
R807
R809
R802
R803
LC801
R344
R343
L301
D341
CF702
D342
D343
D344
D345
C314
R319
Y705
J804
Y706
C302
C303
R309
R312
C305
R801
C304
3.3V_STB
8V
5V
Y802
Y801
R805
R823
D807
C806
C807
Y603
LC701
Y703
STB1
CN00C
Q001
32V
L717
C308
C307
C306
R308
Q002
R307
W-A1
R310
Q305
Q306
X301
L302
IC301
Q703
R324
R342
L702
L701
L703
C702
C701
Y791
Y008
K301
12V
C777
R760
R761
C341
Q341
Y303
R816
Q701
IC651
IC651
BL_GND
J805
R656
R651
R652
R653
R654
R658
R657
R659
R660
R661
R655
C651
C654
C652
C653
C659
C660
L651
D651
CF701
Y701
D801
D802
D803
D804
R664
R663
C657
C658
A_VCC
A_GND
Y973
C779
C804
R815
Y712
Y713
J801
S1
V1
L1
R1
Y714
VDRA+
VDRB-
EW
H_DRIVE
P_ON/OFF
HFB
ABL
PROTECT
GND
GND
R822
R325
R326
R327
VER_PROTECT
GND
R328
R322
R323
D303
D808
R824
D809
Y301
R626
R629
R627
R628
LC805
C805
Y811
J809
R630
R631
R633
R632
CN00S
R778
Y981
GND
GND
R821
R820
R819
R818
S801
S802
S803
S804
S805
D713
R781
R780
R779
C789
Y604
K107
Y813
Y605
Y302
R640
C661
W-A
C111
C985
C986
IC976
R978
R008
D001
Y006
Y005
R006
R817
Y715
D753
C785
C778
D706
R737
Q704
R738
K102
K105
GND
GND
C615
R974
R790
Y817
IC302
C317
J808
Q308
Q706
R724
R792
C616
R825
R725
R722
IC974
C965
C722
C983
R601
R662
R602
D815
C318
L304
CP650
Y819
Y818
R793
C110
R795
R756
Q707
Q708
R796
D707
R794
C792
D607
D751
Y717
C662
Y822
Y824
K106
Y101
Y102
Y103
Y711
Y709
Y718
Y825
Y104
Y720
Y812
Y821
K108
D814
Y105
J806
J807
C342
Y106
Y107
GND
GND
Y601
W-H
D349
D817
TU001
Q101
L001
R106
R104
R108
C102
R102
Q102
Q103
C743
C742
R716
C108
C103
C104
R110
C105
R777
C740
C737
C006
C736
R003
R109
C002
C721
C793
R715
C723
C724
C727
C728
L705
Y710
R710
C739
C738
C725
C726
C729
C732
R741
R742
R744
R746
R747
R749
R751
R752
R754
R771
R757
C703
C704
R736
C767
L712
C775
L715
L704
C731
C734
C730
C733
L713
C769
C768
R745
R743
R758
R759
L714
C773
C774
D714
C771
C772
D709
C776
R750
C770
R618
C601
C655
C656
C602
R605
R604
C603
C604
R606
D605
D604
D606
D710
R612
R613
R614
R619
R615
C610
Q603
Q604
Q605
R810
D806
D805
Q804
R814
C741
R718
R713
R711
C781
C782
K103
Y702
K104
K701
R762 R763
R764
R765
R712
R714
C735
R717
D703
D702
D704
R719
L003
C982
K101
R311
R314
R313
R315
R316
R317
R772
IC702
R748
R720
R721
C612
C611
R769
R770
R625
C744
C745
R740
R776
C783
R785
R768
Y707
R774
R773
R775
Y810
Y809
Y814
Q609
R007
R783
C784
C614
Y007
R784
D791
C790
Q610
Q611
Q702
R723
R634
R635
R636
W-B
W-B1
D711
D712
R786
C786
C791
Y820
D816
1.2K
.1
.22
10
*4
*4
*4
100/16
.0047
.1
.1
.1
22
1.2K
27K
X
.1
.1
.1
.1
.1
.0047
4.7K
0
2.7K
*4
0
1.2K
220
.01
220
470/16
.1
X
X
.01
18p
0
X
X
75
X
X
75
X
X
X
*8
X
.22
*3
X
X
X
X
X
*8
X
X
*8
*8
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
0
.1
.047
75
.0022
3p
1k
*3
12k
6800p
2.2/50
100/16
10k
.22
1M
*3
10/50
100
.022
.1
100/16
39k
100
100
.001
.001
220
22k
.01
.001
*
X
X
X
.22
.22
2.2
4.7K
X
4.7K
*3
10K
X
*2
100K
33/50
*2
27K
X
220/16
220/16
33K
10K
*1
*1
2.2K
10/50
68K
10K
X
0
390
10/50
10/50
82K
82K
*2
X
X
100
0
0
0
22
0
X
X
X
*3
X
X
0
0
X
X
X
X
X
75
X
X
X
75
47
X
100/16
.1
X
X
0
*4
X
X
X
X
X
X
X
X
X
X
X
*2
0
X
*4
*4
*4
.22
.22
X
X
X
.1
100
100
100/16
*2
X
75
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BW
10/50
470/16
75
X
X
BW
1K
0
X
330K
0
X
0
X
470
X
X
0
0
X
X
X
270
1K
1K
270
X
X
470
330
220
180
4.7K
100K
10K
47/50
X
0
X
1K
220/16
470/16
47/16
.1
3.3K
10K
X
X
0
X
*8
X
47/16
3.3K
*1
10K
1K
1K
0
1/50
X
X
33
X
X
X
.1
X
10/16
2.7K
X
2.7K
X
X
BW
0
100
.1
100K
10K
*1
*2
0
*3
2.2K
.1
*8
10/50
BW
X
BW
X
BW
X
X
X
*8
*
X
X
X
X
X
X
100
180
2.2K
.0047
6.8K
*5
*5
10/50
10/50
2.2K
.0047
.0047
10/50
2.2K
.0047
100
.1
.1
33/16
.01
3.9K
2.2K
10/50
X
3.3/50
390
1
1
3300p
.1
*4
BW
X
1
1
.1
10/50
2.2/50
2.2/50
220
100
100
X
100
1K
1K
100
220
1K
4.7k
470/16
.1
100
.22
*4
.22
*4
*4
.1
.1
22/50
10/50
*4
X
.22
3.3k
3.3k
3.3k
3.3k
0
2.2/50
.1
22/50
.22
*3
.1
X
.1
10K
10/50
X
100/50
10/50
X
10K
.22
.22
2.2
X
*8
100K
X
100K
X
X
10/50
X
390
XX
100K
.1
2.2K
2.2K
2.2K
1
1
0
220
220
220
220
3.9K
3.9K
.1
3.9K
X
*8
*8
3.9K
4.7/50
X
X
X
0
0
0
2.2K
2.7K
X
X
X
X
X
X
X
.1
.1
15K
15K
1/50
10K
100
0
2.2K
3.9K
3.9K
X
X
X
*5
10K
10K
X
X
X
X
27p
X
*5
X
X
270
X
270
75
X
X
X
L2
R2
SDA1
CVBSO/PIP_GND
SCL1
5V
SCL0
1.8V
SDA0
S_V_DET
PW
R_OUT
V_OUT
NECK
R1
3.58/OTHER
3.3V
V2/Y_GND
L1
V2/Y
V2/Y_GND
L_OUT
VDO_DET
PB_GND
Y_GND
5V
SCL1
CVBSO/PIP
12V
PB
Y_GND
PR_GND
SDA1
PR
C1
Y1/CVBS1
A_VCC
PB
V2/Y
PR
SDA1
STB1
4.5/OTHER
8V
A_GND
P_ON/OFF
EW
VDRB-
SCL1
VDRA+
STB1
12V
1.8V
3.3V
NECK
SCL0
SDA0
BASS
PROT
PROTECT
5V
EW
VDRA+
H_DRIVE
P_ON/OFF
VDRB-
ABL
HFB
5V
VER_PROTECT
CONT
CONT
V1.8A
PR_GND
C1_GND
A_R
5V
5V
NECK
5V
S_V_DET
L2
R_AOUT
R2
PW_LED
HP_L
REMOTE
R_OUT
L_OUT
8V
TIMER
A_MUTE
3.58/OTHER
SDA1
SCL1
V3
OFF_MUTE
PW
H_DRIVE
HFB
12V
VDO_DET
A_MUTE
Y1/CVBS1
V2/Y
V_OUT
C1_GND
R3
L3
P_ON/OFF
ABL
REMOTE
ECO_IN
PROT
B_MUTE
A_L
CVBSO/PIP
CVBSO/PIP_GND
OFF_MUTE
PW_LED
KEYIN
5V
1.8V
ABL
5V
HP_R
V1.8A
1.8V
1.8V
L1
4.5/OTHER
5V
BASS
R3
L3
KEYIN
PROTECT
12V
HP_R
HP_L
Y_GND
A_R
A_L
L_AOUT
C1
ECO_IN
R1
TIMER
A_B
Y_GND
V3
R_AOUT
L_AOUT
B_MUTE
VER_PROTEC
T
5V
A_B
SVM
A_VCC
A_GND
5V
AUDIO AMP
SPEAKER
VIDEO-3
INPUT
MAIN PWB ASS'Y(1/3)
(CRT SOCKET)
CN10T
VIDEO-1
S-VIDEO
INPUT
VIDEO-2
COMPONENT
VIDEO
INPUT
OPEN
OUTPUT
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.
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]
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3)
