2-8(No.YA476)(No.YA476)2-7
R753
C764
C766
R601
R101
C007
C008
C101
C753
C752
C751
R782
R004
R729
D101
C780
C750
C749
C748
L101
C746
C109
R107
Y004
L716
C808
SF101
L002
NECK
LC803
R755
R002
C107
SF102
R001
C004
J801
C003
R766
R767
C001
C106
R824
J803
C793
R825
Y813
R804
LC802
IC601
Y804
Y803
R806
Y806
Y805
LC804
Y706
J802
D813
D605
Y814
C760
D603
Y710
IC301
R319
D301
D810
C305
C304
D811
D812
L301
R309
R312
C311
L305
R728
R726
R727
CN00T
C705
C757
C756
C718
C806
C302
C754
C755
R732
R733
R734
R735
C310
C758
C704
X701
C709
C712
R779
Q791
D604
C761
C309
R780
IC701
R005
C005
C706
R731 D708
R701C710
C711
C762
R708
C308
R709
D701
Y720
R307
Y717
C713
R702
C714
C707
C708
R705
R703
R704
C716
C715
R706
R707
C719
C720
Y715
TU001
CF101
R617
D602
C605
C606
R607
Y713
R637
R638
R639
D610
R611
Q602
R610
C609
Q601
R609
C607
C608
R623 R620
Q608
Q607
R621
C613
R624
R622
R314
R812
C802
C803
R310
R811
R813
Q803
Q804
Q805
R814
C306
Q801
R807
L302
R313
C313
LC801
R344
CN10A
C312
D341
CF702
D342
D343
L306
D345
Q307
Y909
J804
L706
R318
C315
L304
R801
R781
3.3V_STB
8V
5V
Y802
Y801
R805
Y722
R961
R649
Y703
Y702 Y824
C617
K701
C763
CN00C
Y712
32V
C809
Q982
C831
C827
C828
C829
C830
Q984
R809
C786
C787
C788
CN00M
Y708
C810
R817
Y718
Q704
R796
D713
Y812
Y721
Y003
L703
C702
C701
C773
R790
Y008
R793
Q707
Q708
12V
C777
R760
R761
C341
Q341
Q706
R816
Q701
Q705
GND
J805
R795
R794
R783
C792
D707
R634 R635 R636
R602
Y912
R662
Y610
Y611
W-C
Y942
Y705
GND GND
CF701
C318
D717
D716
C825 C826
D715
K104
C717 R721
R720
Y941
A_VCC
A_GND
Y943
C779
C804
R815
Y944
Y704
Y714
VDRA+
VDRB-
EW
H_DRIVE
P_ON/OFF
HFB
ABL
PROTECT
Y707
GND GND
3.3V
C784
K702
IC801
K651
Y716
R823
R822
R327
LC805
Y810
Y809
IC701 Refer to
NOTE
SF101
J809
R630
R631 R633
R632
CN00S
R778
Y968
Y962
R821 R820 R819 R818
S801S802S803S804S805
Y961
GND
D609
GND
W-C1
W-G W-G1
R640
C661
Q983
C111
R981R982R983R984
D753
C785
C778D706
R985
R986
L718
K102
K105
C615
R976
D608
J808
D808
POWER LED
(RED)
R724
R792
C616
C317
C790
Q702
R725
R722 R723
C722
IC302
CP650
Y819
C110
R756
C823
C824
D607
D751
C662
Y101
Y711
Y709
C821
C822
D814
J806
J807
GNDGND
D817
CN00A
C807
Q101
L001
R105
R106
R104
R108
C102
R102R103
Q102
Q103
C743
C742
R716
C108
C103
C104
R110
C105
R777
C740
C737
C006
C736
R003
R109
C002
C721
R715
C723
C724
C727
C728
R710
C739
C738
C725
C726
C729
C732
R738
C314
R741
R742
R744
Q612
R747
R749
R751
R752
R754
R771
R757
R317
R316
C703
C767
R315
C775
L303
C731
C734
C730
C303
X301
C768
R745
R743
R758
R759
C771
C772
D709
C776
R750
C770
R618
C601
C655
C656
C602
R605
R604
C603
C604R606
R308
D606
D710
R612
R613
R614
R619
R615
C610
Q603
Q604
Q605
Q606
Q306
Q305
R810
R311 C307
R320
C741
R321
C316
R718
R713
R711
C781
C782
R739
R737
K103
R762
R763
R764
R765
R712
R714
C735
R717
D703
D702
D704
R719
L003
R736
K101
C783
R789
R772
IC702
R748
D714
Y964
Y963
D102
C612 C611
R625
C744
C745
R740
R776
R770
R769
R785
R768
R774
R773
R775
Q981
R787
W-A1
L701
L702
Q609
C794
C795
C614
Q610
Q611
D982
D981
W-A
D711
D712
R786
1.2K
X
.22
3K
10
56p
56p
.0047
.1
.1
.1
1.2K
27K
4.7K
.1
.1
.1
.1
.1
.0047
4.7K
0
*4
100/16
*
1.2K
220
.01
220
470/16
.1
X
X
.01
18p
470
10/50
X
75
X
X
75
X
X
*8
X
0
.22
*3
BW
4.7K
*3
*8
0.01
10/50
*8
*8
220
220
0.01
100
27K
560
7p
560p
.1
X
27P
.1
10/50
1K
100
100
100
10/50
.22
.1
.01
.22
100
*1
X
.1
0.01
100
*
75
.0022
7p
1K *3
12K6800p
2.2/50
100/16
10K
10/50
1M
*3
22K
10/50
X
.022
.1
47/16
39K
100
100
.001
.001
220
22K
.01
.001
X
X
X
.22
.22
2.2
X
0
X
0
*3
10K
*2
100K
33/50
*2
27K
220/16
220/16
33K 10K
*1
*1
2.2K
10/50
68K
10K
22K
390
10/50
10/50
4.7K
82K
82K
*6
*6
*2
100K
10/50
100
82K
0.01
22
10/50
*3
X
*3
*3
*3
*2
X
*4
4.7K
0.047
75
100
X
X
75
10K
1K
XX
X
X
X
X
*1
0
0
0
0
0
*1
220
X
X
X
X
X
X
*1
10K
X
X
X
*4
.22
.22
.1
1K
X
100
*1
*2
.1
220
220
100/16
*2
75
X
X
100K
2.2K
10K
0.1
*3
390 X 390
3K
X
X
X
X
X
27p
*3
*3
.0015 .0015
*3
1/50 47K
68K
X
10/50
470/16
75
X
.47/50
X
1K
39K
XX
270
1K 1K
270
X
X
470 330 220 180
X
X
1K
100/16
220/16
3.9
47K3.9
47K
*8
X
47/35
4.7K
4.7K
1000/25
1K
X
X
33
1000/25
10/50
27p
X
X
XX
X
BW
.1
10K
.0015
.0015
*3
*8
10/50
*8
*8
.1/16
X
22
100 180
2.2K
.0047
6.8K2.7K
*5
*5
10/50
10/50
5.6K
.0047
.0047
10/50
2.2K
.0047
100
.1
.1
33/50
.01
3.9K
2.2K
10/50
X
390
1
1
3300p
.1
X
1
1
.1
10/50
2.2/50
2.2/50
100
220
220
220
*1
100
1K
100
100
220
1K
4.7K
10K
10K
470/10
.22
10K
220/16
.1
.1
22/50
27P
.22
3.3K
3.3K
3.3K
3.3K
22/50
.22
*3
.1
10K
.1
10K
10/50
X
100/50
10/50
X
10K
.22.222.2
33K
*8
100K
X
100K
X
X
100/16
*6
X
*6
X
*1
*1
390
4.7K 0.01
3.3K
.1
4.7K
100/16
5.6K
5.6K
5.6K
1
1
100
100
220
220
220
220
10K
10K
.1
10K
*8
*8
*8
10K
100
1/50
X
5.6K 2.7K
X
XX
X
.1
.1
15K
15K
0
0
4.7K
100
5.6K
10K
10K
4.7K
*6
X
X
*6
*3
*3
75
L2
R2
SDA
SCL
C1
5V
5V
SCL0
SDA0
GND
PW
R_OUT
P_R
NECK
5V
5V
3.58/OTHER
GND
PB
SDA
A_B
R1
Y
GND
PB
GND
VDO_DET
L_OUT
GND
S_V_DET
1.8V
SCL
U
12V
PR
SCL
GND
V_OUT
8V
V
A_VCC
V2/Y
GND
PR
SDA
3.3V_STB
4.5/OTHER
P_ON/OFF
CVBSO/PIP
A_GND
P_ON/OFF
L1
EW
VDRB-
VDRA+
Y1/CVBS1
V2/Y
NECK
CONT
H_DRIVE
HFB
SCL0
SDA0
12V
BASS
A_GND
5V
GND
3.3V
PROTECT
3.3V_STB
V1.8A
3.3V
NECK
5V
CONT
EW
VDRA+
ABL
VDRB-
5V
1.8V
12V
S_V_DET
L2
R_AOUT
R2
5V
PW_LED
P_L
L3
ECO_IN
R_OUT
L_OUT
8V
PW_LED
S_REDUCE
3.58/OTHER
SDA
V3
GND
OFF_MUTE
PW
H_DRIVE
VDO_DET
CVBSO/PIP
12V
REMOTE
A_MUTE
GND
Y1/CVBS1
V2/Y
V_OUT
ECO_IN
R3
L3
P_ON/OFF
ABL
1.8V
1.8V
5V
PROTECT
A_R
B_MUTE
REMOTE
A_B
5V
5V
HFB
1.8V
OFF_MUTE
V1.8A
R3
GND
KEYIN
A_MUTE
SDA
12V
V3
ABL
P_L
L1
GND
4.5/OTHER
SCL
5V
P_R
BASS
A_L
KEYIN
3.3V_STB
3.3V
3.3V
S_REDUCE
3.3V_STB
A_R
A_L
GND
L_AOUT
5V
C1
R1
GND
SCL
GND
R_AOUT
L_AOUT
A_GND
B_MUTE
A_VCC
Y
12V
U
V
c21244001a.001.1/2OUT PUTVIDEO-2COMPONENTVIDEO
INPUT
VIDEO-1S-VIDEO
INPUT
SPEAKEROPENMAIN PWB(4/4)(CRT SOCKET)SHEET2CN10TADJUSTMENTCONNECTOR VIDEO-3
INPUT
MAIN MICRO COMPUTER/TELETEXT DECODE/IF࡮VIDEO࡮RGB࡮SYNC࡮DEF࡮PROCESSMAIN PWB ASS'Y (2/4)(FRONT LED)SCW-1645A-H2 [AV-21MXP6/V]

NOTE) 1. Refer to the part list for the part number of IC701 and IC702.

2. Refer to page 2-33 for voltages of this circuit diagram.

3. Refer to page 2-35 for waveforms of this circuit diagram. BASS PWB
SHEET9
CN00M
MAIN PWB(3/4)
SHEET2
!
CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-21MXP6/V] (1/4) (2/4) SHEET1

MAIN PWB ASS'Y(1/4)

SCW-1645A-H2 [AV-21MXP6/V]