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MAIN PWB CIRCUIT DIAGRAM (1/4),(2/4) [AV-25MX56/S] SHEET3
D706
MA8036-X
R796
R985
10K
4.7K
Q704
*1
R986
4.7K
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
MAIN PWB(3/4)
NECK
H_DRIVE
SHEET4
HFB
ABL
EW
P_ON/OFF
VDRA+
VDRB-
PROTECT
3.3V
32V
TU001
QAU0383-002
TUNER
C101
R101
.0047
10
C111
MC
IF
220/16
CF101
R005
NC
X
75
32V
MC
C001
L101
QQL244K-1R0Z
.01
LOCK
L002
QQL244J-4R7Z
R107
5V
4.7K
C004
470/16
BM
1SS356-X
R001
C003
MC
220
.1
C109
SDA
.0047
CH
C007
56p
R002
220
SCL
CH
C008
56p
AS
BT
C005
.0022
AGC
MC
MC
MC
R004
27K
K702
QQR0601-001Z
K651
QQR1113-001Z
K105
QUY160-150Y
K104
QQR1114-001Z
K102
QUY160-150Y
GND
GND
GND
NOTE) 1. Refer to the part list for the part number of IC701 and IC702.
2. Refer to page 2-19 for voltages of this circuit diagram.
3. Refer to page 2-20 for waveforms of this circuit diagram.
ADJUSTMENT
MAIN PWB ASS'Y (2/4)(FRONT LED)
CONNECTOR
SCW-1923A-H2 [AV-25MX56/S]
CN00C
QGA2501F1-06
IC801
GP1UE281QKVF
IC302
REMOTECON
S9648
RECEIVER
ECO
C806
C808
X
100/16
Y813
X
Y814
R823
R327
C317
0
X
39K
10/50
QRE141J-470Y
CN10A
QJL001-050600-E
CN00A
QJL001-050600-E
5V
SDA
SCL
Q706
D
5V
SSM3K02F-X
R755
R794
G
1.2K
D707
2.2K
S
*3
C777
C778
C792
.1
47/35
0.1
R760
220
Q708
Q707
Q705
SCL0
*1
D
*2
SSM3K02F-X
SDA0
G
S
R783
R761
R976
R795
10K
220
1K
100K
1/4W
3.3V_STB
Q791
*1
PW
SCL0
SDA0
C793
R793
100
10/50
R790
1K
P_ON/OFF
D713
MA8039/H/-X
R984
R983
R982
R981
47K
3.9
3.9
47K
1/2W
1/2W
V1.8A
VssP2
Q982
*1
1.8V
VssC4
C701
1.8V
.22
V1.8C4
Q984
C702
*1
Q983
.22
2SA562TM/Y/-T
V3.3A3
VrefP_Sdac
R792
CONT
L703
33
1/4W
*4
CH
VrefN_Sdac
C704
C790
.1
27p
VrefP_Sdac
*
5V
8V
VrefN_Sdac
IC701
A_VCC
VrefP_Sdac
A_GND
C705
7p
CH
5V
XtalIn
C706
7p
CH
12V
XtalOut
X701
QAX0799-001Z
NECK
VssA1
H_DRIVE
R756
10K
NECK
NECK
HFB
C785
2.2
CONT
ABL
CONT
L718
*4
C784
1/50
EW
V5P1
C707
C709
P_ON/OFF
.1
.01
MC
Ph2
VDRA+
C710
R701
6800p
12K
MC
VDRB-
Ph1
C708
C711
PROTECT
100/16
2.2/50
MAIN MICRO COMPUTER/TELETEXT DECODE/
Gnd1
3.3V
C712
.22
TF
SecPll
4.5/OTHER
IF VIDEO RGB SYNC DEF PROCESS
C713
10/50
3.58/OTHER
Dec8G
C714
.022
MC
R702
470
EW
EW
C715
.001
MC
VDRB-
R703
100
SF102
VDRB-
QAX0731-001
C716
.001
MC
VDRA+
C106
18p
VDRA+
C110
CH
R704
100
.1
Vif1
Y008
X
Vif2
TF
Vsc
SF101
C718
*
QFZ0229-154Z
Iref
R705
D101
39K
MC
GndIF
C107
.01
Sif1
Sif2
C719
.01
MC
R706
220
Y004
AGC
0
Y003
C720
.001
MC
X
EHT
R707
22K
MC
MC
R708
10K
R709
1M
1/4W
D701
SCL
*3
SDA
Q701
X
C722
X
CF702
CF701
X
X
C773
Y722
Y711
.1
QUY160-150Y
QUY160-150Y
Y721
Y710
X
BW
Y709
Y720
QUY160-075Y
QUY160-050Y
Y718
Y708
QUY160-050Y
X
Y717
Y706
QUY160-250Y
QUY160-075Y
Y716
Y705
Y968
QUY160-150Y
QUY160-150Y
QUY160-100Y
Y715
Y962
Y704
X
QUY160-050Y
X
Y714
Y961
Y703
X
X
QUY160-150Y
Y702
Y713
Y824
QUY160-100Y
X
X
Y101
Y712
Y812
X
X
QUY160-075Y
GND
GND
GND
GND
GND
MAIN PWB(4/4)
(CRT SOCKET)
SHEET4 CN10T
CN00T
QJL001-064631-E
D808
LH22440-T16
R822
1K
S805
S804
S803
S802
S801
QSW0619-003Z
QSW0619-003Z
QSW0619-003Z
QSW0619-003Z
QSW0619-003Z
R824
470
R825
R821
R820
R819
R818
470
330
220
180
R753
1.2K
V1.8ADC
C766
.22
VssADC
C764
X
V3.3A2
V1.8A
C763
X
GndA
C761
C762
.1
100/16
RefAd
V3.3RefAdP
C760
.22
RefAdN
C758
.22
V3.3A1
R735
100
Bout
R734
D715
100
*3
Gout
R733
D716
*3
100
R720
Rout
D717
680
R732
*3
1K
R721
BLKIN
C717
470
C757
1/50
CH
560p
BCL
MC
R731
D708
C756
1K
1/4W
*3
.1
V5P3
C755
L706
220/16
*4
Gnd3
C779
C753
C754
.1
10/50
.1
B3/Pb
R779
100
D753
1/4W
*8
G3/Y
R780
100
C752
.1
C751
.1
R3/Pr
R781
100
1/4W
D751
INSSW3
*8
R782
1.2K
NC
R729
4.7K
Uout/INSSW2
Yout
C780
.1
Ysync
C750
.1
Yin/G2/Y
C786
C749
.1
X
Uin/B2/Pb
C787
C748
.1
X
Vin/R2/Pr
C788
X
V5Comb
C746
L716
.1
*4
VssComb
R728
100
Hout
R727
560
FbiSo
R726
27K
R725
SVM
X
R724
X
Q702
X
R778
X
R722
R723
X
X
Y707
QUY160-075Y
P_R
A_B
R766
X
R767
X
C662
10/50
D607
*3
D603
*3
C607
220/16
R609
C608
27K
220/16
Y610
X
!
CP650
ICP-N25-T
CP
Y611
X
CN00M
BASS PWB
SHEET5 CN00M
(No.YA445)2-9
2-10(No.YA445)
VIDEO-3
INPUT
J806
QNN0281-003
J807
J808
QNN0281-002
QNN0282-001
J809
R817
QNS0155-001
X
R630
R632
270
270
LC805
D814
1/2W
MC
MC
1/2W
*8
QQR1199-002
C825
C826
.0015
.0015
R631
R633
1K
Y809
Y810
1K
X
X
C831
0
C615
C616
D341
1000/25
1000/25
*3
D342
*3
R961
D343
R344
10K
Y909
Q341
C1
*3
Y941
22
1/4W
X
Y942
*2
5V
X
QUY160-200Y
S_V_DET
12V
W-C1
C341
D345
Y912
QUB230-16ZAZA-E
100/16
*3
QUY160-075Y
SCL
Y1/CVBS1
SDA
L301
QQL244K-100Z
W-C
QUB230-16ZAZA-E
C304
MC
GND
C305
10/50
R319
0.01
D301
*3
4.7K
5V
L305
QQL244K-100Z
MC
C311
VDO_DET
C314
C310
0.01
0.001
L304
10/50
MC
QQL244J-391Z
L1
NC NC
NC
NC NC
NC
R309
220
NC
R1
I2C1
CVBS3
R312
220
I2C2
TM
GND
SDA
CVBS2
L302
C315
QQL244K-100Z
SCL
TEST
0.047
CVBSO/PIP
IC301
R318
INTR
CVBS1
4.7K
MC
PVP9390A-QG-A1
Q307
NC
NC
QUB230-12ZAZA-E
C306
*2
VDD33PAD
VSS18ADC
10/50
VSS33PAD
VDD18ADC
MC
R310
C318
VSP
IN1
C313
C312
NC
4.7K
27p
0.01
IN2
10/50
HSP
NC
NC
GP01
IN3
V2/Y
NC
NC
R314
22K
CLKOUT
FSW
CH
L306
GND
QQL244K-100Z
NC
PB
R313
82K
MC
CH
C302
GND
R307
27P
C309
C308
22K
0.01
10/50
PR
V
GND
Y
U
K701
QUY160-150Y
L2
R2
NECK
PB
GND
GND
V2/Y
PR
BASS
Y943
X
3.3V_STB
3.3V
A_GND
Y944
QUY160-075Y
5V
R809
220
V_OUT
L_OUT
R_OUT
D605
X
AUDIO AMP
IC601
AN5277
D604
X
D602
X
R617
C605
X
.22
R601
0
R637
1K
c21246001a.001_1/2
R662
C606
X
R638
X
.22
R602
X
0
R639
1K
R607
2.2
R640
D610
*3
1/2W
1K
1/4W
R634
R635
R636
R611
0
X
0
10K
Q601
*2
Q602
*2
R649
1K
R610
C609
100K
33/50
MAIN PWB ASS'Y(1/2)
D608
D609
X
X
SCW-1923A-H2 [AV-25MX56/S]
C661
R623
R620
10/50
33K
10K
R621
2.2K
Q607
R622
10K
*1
Q608
*1
C613
C617
R624
10/50
X
68K
SPEAKER
CN00S
QGA2501C5-04Z
R816
75
J801
QNZ0454-002
C827
Y801
R801
Y819
0
X
75
BW
C
Y802
X
S1
LC801
QQR1199-002
D817
*8
V1
VIDEO-1
S-VIDEO
L1
C821
INPUT
NCB31HK-152X
R1
C822
NCB31HK-152X
W-G
W-G1
QUB230-12ZAZA-E
C828
0
R804
Y803
X
75
LC802
QQR1199-002
D810
Y804
X
C829
*8
0
Y805
X
R805
75
J802
LC803
QNN0349-002
QQR1199-002
VIDEO-2
Y806
X
D811
C830
*8
COMPONENT
0
LC804
VIDEO
QQR1199-002
R806
75
INPUT
D812
*8
MC
C823
J803
.0015
QNN0348-001
MC
C824
.0015
J805
OPEN
X
R807
C804
100
1/2W
470/16
R815
75
Q801
D813
J804
*8
KTA1267/YG/-T
QNN0349-001
R811
C809
C802
OUT PUT
82K
X
10/50
C810
C803
R812
X
10/50
390
R813
82K
Q803
*6
Q804
*6
Q805
*2
R814
100K
SCW
SCW
SCW
-1915A
-1921A
-1923A
TDA12020
TDA12072
IC701
Refer to NOTE
H/N1F01
H/N1F01
QAX0872
QAX0663
QAX0663
SF101
-001
-001
-001
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