
SCHEMATIC DIAGRAMS
COLOUR TELEVISION
AV-25KX3B
AV-25KX3B
CD-ROM No. SML200312
/S
BASIC CHASSIS
CH3
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.52190
2003/11

AV-25KX3B, AV-25KX3B/S
STANDARD CIRCUIT DIAGRAM
! !
!
! !
NOTE ON USING CIRCUIT DIAGRAMS
1. SAFETY
The components identified by the
for safety. For continued safety replace safety critical components
only with manufactures recommended parts.
!!
! symbol and shading are critical
!!
2. SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1) Input signal : Colour bar signal
(2)
Setting positions of each knob/button and
variable resistor
(3) Internal resistance of tester : DC 20kΩ/V
(4) Oscilloscope sweeping time : H ⇒ 20µs/div
(5) Voltage values : All DC voltage values
: Original setting position when
shipped
:V ⇒ 5ms/div
: Others ⇒ Sweeping time is
specified
∗Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
3. INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board : R1209 → R209
•
Type
•
No indication : Ceramic capacitor
MY : Mylar capacitor
MM : Metalized mylar capacitor
PP : Polypropylene capacitor
MPP : Metalized polypropylene capacitor
MF : Metalized film capacitor
TF : Thin film capacitor
BP : Bipolar electrolytic capacitor
TAN : Tantalum capacitor
(3) Coils
No unit : [µH]
Others : As specified
(4) Power Supply
:B1
: B2(12V)
:9V
:5V
∗Respective voltage values are indicated
(5) Test point
: Test point
: Only test point display
4. INDICATIONS ON THE CIRCUIT DIAGRAM
(1) Resistors
Resistance value
•
No unit : [Ω]
k:[kΩ]
M:[MΩ]
Rated allowable power
•
No indication : 1/16 [W]
Others : As specified
Type
•
No indication : Carbon resistor
OMR : Oxide metal film resistor
MFR : Metal film resistor
MPR : Metal plate resistor
UNFR : Uninflammable resistor
FR : Fusible resistor
∗Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2) Capacitors
Capacitance value
•
1 or higher : [pF]
less than 1 : [µF]
Withstand voltage
•
No indication : DC50[V]
AC indicated : AC withstand voltage [V]
Others : DC withstand voltage [V]
∗Electrolytic Capacitors
47/50[Example] : Capacitance value [µF]/withstand voltage[V]
(6) Connecting method
: Connector
: Wrapping or soldering
: Receptacle
(7) Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5. NOTE FOR REPAIRING SERVICE
This model’s power circuit is partly different in the GND. The difference
of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken
for the following points.
(1) Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. If the above
caution is not respected, an electric shock may be caused. Therefore,
make sure that the power cord is surely removed from the receptacle
when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or never measure the LIVE side
GND and ISOLATED(NEUTRAL) side GND at the same time with
a measuring apparatus ( oscilloscope, etc.). If the above precaution
is not respected, a fuse or any parts will be broken.
♦
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
♦
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear in
the Parts List.
(No. 52190) 2-1

CONTENTS
SEMICONDUCTOR SHAPES................................................................................................................................. 2-2
BLOCK DIAGRAM ......................................................................................................................................................... 2-3
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3) ............................................................................................................................. 2-5
MAIN PWB CIRCUIT DIAGRAM (2/3) ............................................................................................................................. 2-7
MAIN PWB (CRT SOCKET) CIRCUIT DIAGRAM (3/3) ............................................................................................... 2-8
FRONT CONTROL PWB CIRCUIT DIAGRAM .............................................................................................................. 2-9
PATTERN DIAGRAMS
MAIN PWB PATTERN ...................................................................................................................................................... 2-11
FRONT CONTROL PWB PATTERN .............................................................................................................................. 2-13
VOLTAGE CHART ........................................................................................................................................................ 2-14
WAVEFORMS .................................................................................................................................................................. 2-15
SEMICONDUCTOR SHAPES
TRANSISTOR
TOP VIEWBOTTOM VIEW FRONT VIEW
CHIP TR
E
C
B
ECB
EC
B
(G)(D)(S)
ECB
ECB
C
B
E
IC
CHIP IC
TOP VIEWBOTTOM VIEW FRONT VIEW
OUT
E
IN
IN E OUT
N
N
N
1
N
1N
TOP VIEW
1
N
1N
1N
2-2 (No. 52190)

CONTROL
J801
VIDEO-1
INPUT
T551
FBT
B1
FOCUS1
IC702
MEMORY
TU001
TUNER
VIDEO
Y
in
1
V1-V
V1-L
V1-R
V2-Y
V2-C
V2-V
V2-L
V2-R
V3-V
V3-L
V3-R
Vout2
Lout2
Rout2
AUDIO L/MONO
AUDIO R
IF
IC351
RGB OUT
SCL
SDA
MAIN PWB
(CRT SOCKET)
IC401
VERT OUT
J802,J803
COMPONENT
(VIDEO-2)
INPUT
C
B
C
R
AUDIO R
J801-J803
FRONT IN
(VIDEO-3)
VIDEO
AUDIO L/MONO
AUDIO R
J804
OUTPUT
AUDIO L
AUDIO R
VOL+
REMOCON
RECEIVER
VOL- CH+ CH- MENU
Q522
H. OUT
SCREEN
EHV
V
H
DY01
DEF YOKE
SPEAKER
L
SPEAKER
R
V/Y
AUDIO L/MONO
VIDEO OUT
SF101
SAW FILTER
SF102
SAW FILTER
CF106
TRAP
Q111
BUFFER
C
B
C
R
Q109
BUFFER
IC650
AUDIO OUT
AC IN
F901
POWER SW
D901
RECT
T901
SW
TRANSF.
IC974
REG
L951
STB
5V
5V
8V
9V
32V
IC951
ERROR
AMP
PC901
VOLTAGE
FEEDBACK
IC901
POWER
REG
MAIN PWB
FRONT CONTROL PWB
28, 29
5,6
R
G
B
7
12
5
2
KEY_IN
REMOTE, LED
S901
IC972
3.3V REG
STB3.3V
J770
HEADPHONE
V01
SCL
SDA
1
30
1, 7
8
23
5
29,30
15
14
13
23
26
24
25
19
27
10
8
7
SCL,SDA
Yout1
Cout1
MTV-V
MTV-L
MTV-R
Vout1
Lout1
Rout1
3
5
1
4
2
37
36
35
43
44
42
47
48
46
42
43
62,63
7
10,64
2,3
23, 24
51
52
53
21,22
33
38
35
IC801
VIDEO/AUDIO SW
IC701 MAIN MICROCOMPUTER, TELETEXT DECODER,
VIDEO/SYNC/DEF PROCESSOR
VOL1
VOL1
TONE VOL2
TONE VOL2
SURROUND
PROCESS
I2C
IC602 AUDIO CONTROL
CF142
6.5 FILTER
CF140
5.5 FILTER
CF141
6.0 FILTER
Q137
BUFFER
Q136
BUFFER
IC130
SOUND
DETECT
CF130
4.5 FILTER
Q132
BUFFER
Q130
BUFFER
POWER
LED
SUB POWER
LED
L,R 11 10
SIF IN
IF IN
U
V
Y
CVBS
/YIN
KEY IN
SCL,
SDA
SCL1,
SDA1
REMOTE,
LED OUT
VIDEO
IDENT.
VIDEO
FILTER
PAL/
SECAM/
NTSC
DECODER
TELETEXT
ACQUI.
CHARA.
GEN.
RGB
MATRIX
OSD
INSERT
SYNC
SEP.
VIDEO
DETECT
QSS
SOUND
I2C
I/O
PORT
CPU
ROM
RAM
QSS OUT
IF VOUT
ROUT
GOUT
BOUT
HOUT
VDRA,
VDRB
V.DRIVE
H.DRIVE
U
V
Y
CIN
40
R
G
B
GBR
YUV
SELECT
BLOCK DIAGRAM
No. 52190
2-3 2-4
No. 52190

NOTES) 1. Please refer to page 2-14 for voltages of this circuit diagram.
2. Please refer to page 2-15 for waveforms of this circuit diagram.
: NON MOUNT (OPEN)
: KTC3199/YG/-T
: MA3120/M/-X
: MA111-X
: 2SA1530A/QR/-X
: 2SC3928A/QR/-X
: NRSA63J-0R0X
∗
3
∗
7
: UN2212-X
∗
8
∗
4
∗
1
∗
2
0
X
: BUS WIRE
BW
NOTE
D656
Q804
IC601
X601
C824
C825
C606
R837
C750
R838
C820
C823
C821
Q684
C813
R840
R839
C826
R832
R833
C611
C610
C108
C822
R836
C831
C830
C829
D655
C650
C652
IC602
C642
C651
Y606
Y101
Y005
R826
ABL
R803
R841
CN00T
R842
K601
C105
IC130
D101
D733
R745
R708
C811
R707
Q150
R151
R153
R150
R152
CN002
R806
R154
C625
C626
R695
C151
C641
C150
R689
R688
C745
CN00C
J801
J803
C639
R627
C685
J802
C686
R655
Y601
R820
R823
C805
R651
C682
R819
R817
C630
R815
Q683
R691
R304
Y301
R624
Q686
R315
Q687
Q685
R305
R744
C827
C644
R690
C638
R155
R845
C612
C615
C613
C616
R149
R625
Q306
C139
Q138
CN001
C311
R626
W-Q
R313
Q305
R844
C631
C807
IC650
C681
J804
R693
C308
C801
R696
C684
R802
C683
J804
R303
J804
R301
C834
C808
R316
C802
R302
J802
C814
C806
R312
C617
C620
C619
C621
C622
R801
R602
C602
C604
C640
C833
L601
C603
R603
R604
L602
C809
Q301
Y001
Y002
R804
Y003
H_DRIVE
C660
C730
C629
R725
R719
C109
C812
Q103
IC701
R843
Q861
R006
R712
IC801
C662
Q862
C810
R664
R306
R834
R650
Y102
R692
D682
R835
C628
C817
C815
Q661
R849
R805
R807
Q660
C645
R658
C661
C637
C142
C141
C140
C143
R147
R148
C144
R662
R661
R660
C137
C138
C136
C135
C755
R848
R146
C134
R143
R144
R145
C132
Q137
R142
C133
Q136
Q132
R141
R139
R140
C131
R135
R134
R132
C130
CF140
CF141
CF142
R821
C663
C819
R824
R659
Y603
R883
R138
R137
Q134
Q130
Y130
CF131
CF130
R131
Q131
Q803
R130
Q135
Q108
R829
HFB
Q688
Q801
Q109
Q802
Y602
R694
R818
R813
R119
Q110
R809
R811
R808
R810
CF106
R120
R121
R117
R113
D804
D803C803
R115
R111
C804
R112
R116
R812
R114
C313
Q106
Q111
CF104
CF105
CF103
Q107
Q104
L103
L102
D805
L104
Q105
TU001
C101
C107
C104
C106
C103
C102
R102
R103
R104
R105
R106
R107
R108
Q307
Q101
L101
SF102
SF101
Q302
Q102
R110
R701
C005
C006
R004
R003
C001
C002
L001
D816
D815
R101
R136
Q133
R710
IC702
R709
R713
R882
C636
C635
C632
C633
C634
R314
C312
R622R621
C310
R663
R733
L730
K701
C707
C732
C736
C740
C733
C731
X701
Q702
R716
R717
Q701
R715
R714
L701
D702
D801
D802
R747
L731
D730
D731
C743
C742
R880
C748
R881
R846
CN00ACN01A
CN02A
D704
R847
R729
D703
R686
R687
CN00F
Y604
Y730
C713
C710
C715
C726
L732
CN01D
R007
Y104
K101
K103
K104
R746
C601
K105
K106
K108
C605
C614
R005
Y103
Q703
CN00D
W-B2 W-B1
R743
R726
R727
R728
C720R720
Q720
R698
Y004
R699
Q860
R749
C607
R748
C608
C609
R742
C655
C656
D732
R741C706
R740
R739 R738
C711
EW
C747
C746
C751
D652
D653
C752
C753
C659
C725
VDRB_
VDRA+
C705
R718
R756
R755
R758
R757
3.3V_STB
R711
R654
R724
R723
R722
R721
C756
R133
R830
R831
A.GND
5V_STB
A.VCC
P_ON/OFF
R730
R109
PROTECT
R702
R703
R706
R704
C007
R002
R001
C003
C004
L002
5V
32V
R734
9V
R705
C741
8V
C702
R731
R732
L702
C704
C703
C734
C735
C738
C737
C739
C749
R737
R735
R736
C744
Y701
C701
R750
C709
C714
QRK126J-121X
NCF31AZ-105X
NCF31AZ-105X
QRE121J-221Y
QRE121J-221Y
NJW1138M-W
QJL001-065631
M52342SP
1SS268-X
QGF1220C2-19
NCB31EK-104X
QGA2501C5-06Z
QNN0349-001
QNN0348-001
NCF21CZ-105X
DTC323TK-X
MUTING
MUTING
DTC323TK-X
MUTING
NCB31EK-104X
QGA2501C5-04Z
NCB31EK-104X
80%
AN5276
QNN0349-001
CH
80%
QNN0349-002
MY
NCB31EK-104X
80%
TDA9386N22S0868
MM1492AF
80%
80%
80%
QAX0695-001Z
QAX0696-001Z
QAX0697-001Z
QRE121J-2R2Y
QAX0642-001Z
DTC323TK-XDTC323TK-X
DTC323TK-X
QAX0639-001Z
QQL244K-180Z
QAU0185-005
NDC21HJ-180X
2SC5083/L-P/-T
QQLZ014-R82
QAX0731-001
QAX0325-001
TF
CE42050-001Z
AT24C08-21WS3
QAX0737-001
QQL244K-100Z
MA3024-X
QQL244J-5R6Z
QGA2501C5-04Z
MA3033-X
MA3051/M/-X
QQR1113-001Z
QQR1113-001Z
FMC2A-X
2SB709A/QR/-X
QEHQ1VM-108
QEHQ1VM-108
MA3330/L/-X
MA3330/L/-X
CE42050-001Z
QQL244K-100Z
CH
CH
NFV41CJ-104X
12MHZ
X
∗
7
X
X
100/16
.01
X
100
X
120
1/10
100/16
1/10
∗
2
.01
220
220
.1
1.2K
1k
X
X
X
470/16
75
.01
.01
.01
∗
3
10/50
10/50
.0047
47/35
X
BW
0
100
33k
0
0
X
.0047
∗
3
1M
4.7K
.1
4.7K
X
X
X
X
X
75
X
4.7/50
4.7/50
X
X
X
X
27k
.047/25
1K
0
0
15K
0
100
100
.1
15K
220/16
X
X
4.7/50
100
∗
2
X
2.2K
0
100
X
X
2.2K
560
.01
4.7/50
100k
470
1K
X
X
X
X
470
100
X
.01
∗
8
X
1K
X
X
2.2k
1/10
220/16
X
.01
10/50
X
10/50
X
33/16
5.6K
2.2K
180P
1/10
X
10/50
2.2K
.1
X
X
X
X
X
X
X
X
X
X
X
4.7/50
22/50
X
X
X
X
X
X
∗
2
0
0
75
X
.22
.22
10K
220
10/50
1/10
X
820
∗
2
27K
100
220/35
∗
2
1/10
2.2k
5.6K
5.6k
10K
BW
X
∗
3
5.6k
.0047
1/10
1/10
∗
1
220
75
75
∗
1
4.7/50
2.2
.22
4.7/50
.01
.01
.01
10/50
100
3.3K
.022
33k
68k
10k
.01
.01
.01
470/10
X
470
10K
.01
470
22
820
.01
∗
1
560
100/16
∗
1
∗
1
1.8K
2.2K
1.5K
.01
560
1.8K
2.2K
.01
2.2k
.22
.1
2.2k
2.2
X
180
470
10K
∗
8
∗
2
0
X
470
∗
8
∗
2
4.7K
∗
8
∗
1
75
X
∗
2
X
X
2.2k
2.2k
1K
∗
8
390
390
82k
82k
470
X
1K
X
X
X
10/50
X
1K
10/50
10K
X
100K
X
X
∗
8
∗
1
X
X
X
X
∗
2
X
X
X
∗
8
.0047
.01
.0047
18p
.0047
.0047
6.8K
2.7K
180
22
100
4.7k
2.2k
X
∗
2
∗
8
X
100
.0022
33/16
220
3.9K
.01
10/50
X
X
10
4.7K
∗
2
4.7K
4.7K
100
470
4.7/50
100/50
4.7/50
4.7/50
4.7/50
X
X
0
0
0
10k
27K
X
BW
100/16
100/16
1/50
2.2/50
.1/16
.22
∗
2
10K
10K
∗
2
10K
100
10
∗
4
∗
4
10K
∗
3
∗
3
100/16
.1/16
2K
47/16
10k
2.2k
XX
10k
47
1K
10K
X
0
BW
.1
.22
X
X
5.6
75
X
X
X
33K
X
BW
BW
X
X
X
BW
680
4.7K
100K
10K
47/16
1K
100K
X
100K
∗
1
4.7MX4.7M
X
X
0
1000/35
1000/35
∗
3
100.22
100
100 0
.1
.047/25
.047/25
.1.1.1
.22
6800p
1000p
220
100
100
2.2K
2.2K
100
10K
220
220
220
220
X
1.5K
2.2k
2.2k
22K
2.2k
100
100
1K
1K
.01
220
220
.1
470/16
390
1K
.1/16
10/50
100
39K
10
33p
33p
.0022
.0022
.1/16
1/50
10/50 2.7k
100K
33K
1000p
X
220/16
0
100/16
47/16
SW1
R2
L2
VIDEO
L1
Y1
SCL
SDA
A_OUT_R
VOUT2
SW1
ROUT1
LOUT1
AUDIO_L
AUDIO_R
A.GND
A_OUT_L
LOUT2
L2
ROUT2
R1
R1
Y2
CR
C1
YOUT1
Y2
Y1
A_OUT_R
CR
V1
L1
R2
9V
COUT1
YOUT1
A_OUT_L
5V_STB
SCL
VOUT2
SDA
CB
CB
A.GND
ROUT2
V
LOUT2
C1
V1
SDAEWSCL
REMOTE
ECO
LED
ROUT1
LOUT1
R
KEYIN
V
SCL
ECO
A.GND
YOUT1
MSPRESET
VIDEO
L
SDA
AUDIO_L
AUDIO_R
5V_STB
9V
3.3V_STB
R
MSPRESET
MSPRESET
SCL
SDA
VDRB_
COUT1
P_ON/OFF
PROTECT
A_OUT_R
A_OUT_L
P_ON/OFF
SCL
PROTECT
EW
VDRA+
REMOTE
KEYIN
VDRB_
LED
VDRA+
L
SDA
FRONT CONTROL PWB
CN002
VIDEO-1
INPUT
COMPONENT
(VIDEO-2)
INPUT
OUTPUT
MAIN PWB (3/3)
CN10T
MAIN PWB ASS'Y (1/3)
SCH-1189A-H2 (AV-25KX3B)
SCH-1190A-H2 (AV-25KX3B/S)
MAIN PWB CIRCUIT DIAGRAM (1/3)
CIRCUIT DIAGRAMS
No. 52190
2-5 2-6
No. 52190

NOTES) 1. Please refer to page 2-14 for voltages of this circuit diagram.
2. Please refer to page 2-15 for waveforms of this circuit diagram.
: NRSA63J-0R0X
: RGP10J-5025-T3
: 2SA1530A/QR/-X
: MA111-X
: 2SC3928A/QR/-X
: NON MOUNT
∗
6
∗
9
∗
1
∗
2
X
0
: IM-BW
BW
NOTE
C532
Y908
D966
Y909
K955
D965
C955
R953
Y907
C959
C957
R533
R965
R963
R964
Q953
K903
Y911
IC974
Y912
R531
R972
T901
Y906
D901
R590
C550
D909
R406
PC901
R908
D952
C952
R545
IC480
C978
C953
D553
LF902
K951
C404
C979
R386
Q952
R991
R912
L480
R409C409
IC901
Y501
Y502
D911
C911
R414
R913
D401
C401
R425
R904
R401
CP952
K953
D956
R960
R907
C960
C483
R494
R530
R487
K902
R909
Q480
CNDEG
C915
R905
C917
Y910
R911
C521
R902
Y917
D904
R484
Y918
C905
R485
D964
C910
D592
R906
R971
C484
R483
C485
R493
CP951
R407
R596
D907
R480
C593
L524
R486
D550
C993
Y916
C591
Q592
R490
D902
R489
Y915
D903
C901
C907
C527
R491
R492
R481 R482
C480
CN0E5
D594
C537
R917
D912
Q591
C965
C481
D914
R952
C914
C902
R970
R915
D908
R385
C968
R542
C969
Y511
R593
D910
T551
R910
R969
C916
C973
Y510
R966
L954
C977
F901
R405
Y901
C422
Y902
Y903
C540
C535
C403
C408
C539
R411
R534
D593
VA901
C980
L951
R535
Y904
C908
R597
D906
C962
IC972
TH901
D402
D408
C964
C974
R957
L540
D971
D968
Q954
RY901
C972
R527
D480
CN00W
LF901
C906
R413
D969
R543
C407
C412
R962
C992
C991
Q521
T521
R595
Q522
Y951
R540
R521 R522
C522
C523
R526
R524
R402
C402
R403
R404
R408
IC951
C413
K954
C975 C976
L953
C536
C954
D953
R532
C956
D524
CN00S
D595
R539
R538
Q523
Q524
R537
R592
R536 C538
D596
D551
R546
R541
D365
R591
C529
C533
IC401
R528
C530
R529
R594
C541
C592
C525
C531
C534
C524
D554
D523
D521
D522
C526
C411
R961
C528
D954
CP953
C958
R410
C406
D405
R412
L523
CN0E6
K401
D366
D367
CN00U
CN10U
Y505
Y731
Y504
Y503
CN0HV
C542
C961
Y507
R967
Y508
K901
Y509
D350 R356
D360
Q352
Q374
Q375
Q376
D374
R377
R378 D373
R359
R358
C354
D352
R369
R379
D357
R384
D358
C352
R366
SC
R362
Q360
R365
R363
Q361
C361
R367
C360
D372
R370
R371
Q370
R373
R350
D361
R372
Q371
L353
C371
R352
R374
Q350
R376
R355
C370
SK351
SK351
C373
R353
Q351
R383
C374
TP-E
R360
R361
CN10T
D371
L350
C351
R357
C350
D351
R351
D353
D370
R368
C353
VDRB_
8V
ABL
P_ON/OFF
C903
PROTECT
C904
Y955
Y956
3.3V_STB
5V_STB
9V
H_DRIVE
D541
32V
A.GND
A.VCC
HFB
5V
VDRA+
EW
Y551
Y552
C375
TP-47R/G
L351
R364
L352
TP-47G/R
R381
R382
R354
R380
D354
D355
D356
R375
MA3068/M/-X
QQR1214-001Y
1SS133-T2
QCB32HK-471Z
QCZ0122-561
QCB32HK-471Z
FR
1/2W
QQR1114-001Z
AN80T36
QQS0182-001
!
GSIB460
PC123F2
!
3WOMR
QRL039J-333
ERC30-02L38
QCB32HK-471Z
1/2W
NCB31HK-104X
RGP10J-5025-T3
QQR1035-001
!
QQR1113-001Z
QRZ9046-825Z
!
STR-F6707A/F7
RGP10J-TS-T3
1/2W
1/2W
RGP10J-5025-T3
1/2W
ICP-N50-Y
!
CP
QQR1113-001Z
RU3AM-LFC4
QQR1114-001Z
1/2W
QGZ5003C1-02
MY
3WMFR
QRM034J-R22
1/2W
15W,UNFR
QRF154K-2R2
EG01C-T2
QCZ9015-102Z
MA3330/L/-X
NDC31HJ-471X
MA3075/H/-X
2WMFR
ICP-N75-Y
!
CP
MA3150/M/-X
QQLZ034-430
400VAC
QCZ9079-152
!
UN2212-X
MTZJ12C-T2
QFZ9072-224
!
QFZ0199-474
1SS133-T2
2SA1208/ST/Z1-T
ERC30-02L38
QFZ9072-104
!
QRZ0111-474
!
MTZJ27B-T2
1/2W
QQH0148-001
!
FBT
1/2W
QQL244J-5R6Z
QMF51E2-4R0J4
!
TF
QCB32HK-101Z
QEHR1VM-227Z
TF
1% MF
QAF0052-621
!
QQLZ034-460
1%
MF
QFZ0209-222
EG01C-T2
R1141Q331B-X
QAD0134-4R5
MTZJ75-T2
1/2W
QQL244J-5R6Z
QSK0092-001
!
QRL039J-103
PW
QGA7901C-02
QQR0673-004
!
QFZ9072-224
!
QRX01GJ-2R7
1/2W
NCF21HZ-334X
QCZ9079-102
!
QCZ9079-102
!
2SC2655/Y/-T
QQR1229-001
H.OUT
2SD2634-YD
1W
!
MY
MY
3W OMF
QRL039J-181
SE115N-LF12
MY
QQR1113-001Z
QQL244J-5R6Z
MY
RGP10J-5025-T3
QRZ9017-4R7
!
QGA2501C5-05Z
RGP10J-5025-T3
1/2W
1/2W
1/2W
QEHR1EM-108Z
AN5522
QCB32HK-561Z
1/2W
QEHR1EM-108Z
QFZ0200-113
RGP10J-5025-T3
RGP10J-5025-T3
NCF21HZ-334X
QRL029J-183
RGP30B-F1
ICP-N75-Y
!
CP
QFLC2AJ-683Z
1N4003-T2
1/2W
QQR1006-002
U
CHGC05-260
U CHGC05-260
HV
QGZ5003C1-04
1SS244-T2
1/2W
1SS244-T2
1/2W
1/2W
RGP10J-5025-T3
QRZ9017-150
1/2W
STC344-T
2SA1767/PQ/-T
MA3075/M/-X
STC344-T
2SA1767/PQ/-T
STC344-T
QNZ0537-001
!
2SA1767/PQ/-T
1/2W
1.25KV
QCZ0364-222
B
T
QJL001-065631
QQL244K-820Z
1SS244-T2
QCZ9015-102Z
QCZ9015-102Z
RGP10J-5025-T3
QCS32HJ-180Z
QCB31HK-682Z
QQL244K-820Z
QQL244K-820Z
X
X
6.8
X
100
X
560p
X
0
10K
47K
∗
1
X
BW
2.2K
390
X
X
.1
∗
2
12K
33K
22
X
0.1
1000/35
X
X
39K
∗
1
8.2M
1.2K
X
XX
BW
X
220/25
33
12
1/50
68k
680
220k
390
56K
100
X
X
X
X
470K
X
.0022
X
X
5.6K
47/35
X
X
BW
.0022
X
470p
X
18K
X
X
X
X
X
X
X
47/25
X
∗
2
BW
100/10
X
X
X
X
220
X
X
XX
X
X
X
X
X
2.2/50
X
3.3K
220/25
15K
27K
.1
180K
X
X
470
0
1.5K
BW
X
100/16
X
6.8K
470/10
4A
6.8K
X
1000/35
X
X
.1
100p/500
220/35
0.18
X
220
X
X
100/16
46
X
X
X
10/50
∗
2
47/16
.1
6.8
∗
2
∗
2
∗
1
47/35
10k
X
∗
2
470
560
2.2k
X
47
100 1K
.0033
.022
270
180
X
6800p
0
X
6.8K
.056/100
220/16 100/16
.01
.001
4.7
220/35
X
X
X
X
X
X
X
3.9
XX
X
8.2K
180K
∗
9
2.2K
2.2/100
1000/25
.47
560p/500
.47
15K
22/250
100
X
1000/25
X
X
X
X
18K
X
2200/25
12K
.068/100
1
X
BW
∗
9
∗
9
X
X
BW
BW
22/250
2.2/50
X
47K
X
BW
BW
1K
∗
6
∗
1
∗
1
∗
1
∗
2
33
22k
∗
2
560
2.7K
1/50
10K
∗
2
10K
∗
2
4.7/250
1K
12K
100
1.8K
680p
1.5K
470p
150
12K
330
X
X
1.8K
BW
820p
12K
100
1.5K
100
470p
X
1.8K
390K
220n
X
150
X
680p
1.5K
470p
X
150
∗
2
3.3K
100/50
.0022
.0022
BW
X
BW
BW
470/16
330
X
X
330
X
∗2∗2∗
2
1K
8V
A.VCC
8V
5V_STB
3.3V_STB
5V_STB
3.3V_STB
9V
5V
STB
A.VCC
9V
5V
8V
9V
9V
32V
H_DRIVE
H_DRIVE
PROTECT
P_ON/OFF
32V
STB
ADJ.
CONNECTOR
DEF YOKE
FRONT
CONTROL
PWB
CN00W
DEG COIL
MAIN PWB (1/3)
CN00T
MAIN PWB ASS'Y (3/3)
(CRT SOCKET PWB)
SCH-1189A-H2
(AV-25KX3B)
SCH-1190A-H2
(AV-25KX3B/S)
MAIN PWB ASS'Y (2/3)
SCH-1189A-H2 (AV-25KX3B)
SCH-1190A-H2 (AV-25KX3B/S)
MAIN PWB CIRCUIT DIAGRAMS (2/3, 3/3)
No. 52190 2-7 2-8
No. 52190

NOTE) Please refer to page 2-14 for voltages of this circuit diagram.
C803
R805 R807
Q801
S805S804
R812
R806
R804
D801
R802
IC801
D803
R803
R814
C802
S803S802
D804
C801
R816
S801
R813
R817 R815
CN002
J802 J801J803
R810
R808 R809
D805 D806
CN0PW
S901
CN00W
D802
R801
Y003
Y002
Y001
R811
2SB709A/QR/-X
QSW0619-003ZQSW0619-003ZSLR-342VR-T16
GP1UM281QK
P1241-04
QSW0619-003ZQSW0619-003ZQSW0619-003Z
QGF1220C2-19
QNN0282-002 QNN0282-003QNN0282-001
MA3100/M/-X
MA3100/M/-X
!
PW
QGA7901C1-02
QSW0846-001
!
W
CHGH0001-AB-G
SLR-342MC-T16
10/50
220 470
0
330
180
470
1.2K
6.8K
100/16
MA111-X
.1
3.3K
3.9K
0 2.7K
0
0
0
2K
BW
BW
BW
6.8k
AUDIO_L
VIDEO
AUDIO_R
LED
ECO
REMOTE
3.3V_STB
5V_STB
KEYIN
9V
MAIN PWB
CN00W
MAIN PWB CN002
IN (VIDEO-3)
FRONT CONTROL PWB ASS'Y
SCH-8005A-H2
LIVE ISOLATED
FRONT CONTROL PWB CIRCUIT DIAGRAM
No. 52190
2-9 2-10
No. 52190

D805
J801
IC801
R801
J802
J803
S801
R802
S802 S803 S804 S805
D803
D801 D802
R803
R804
R805 R806 R807
R808
PW
R809
R810
R811
R812 R813
R814
R815
R816
R817
S901
D804
CN002
C801
C802
C803
W001
W002 W003
W004
Q801
D806
Y001
Y002
Y003
W014
W015
W017
FRONT
()
PIN NO.
VOLTAGE(V)
PIN NO.
VOLTAGE(V)
PIN NO.
VOLTAGE(V)
PIN NO.
VOLTAGE(V)T T T T
PIN NO.
VOLTAGE(V)
PIN NO.
VOLTAGE(V)T T
PIN NO.
VOLTAGE(V)T
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
PIN NO.
VOL AGE(V)
IC1130
1 0.3
2 0.3
3 0.3
4 1.5
5 1.5
6 0
7 2.4
8 4.2
9 2.0
10 1.6
11 2.2
12 0
13 2.4
14 5.1
15 4.4
16 3.7
17 5.1
18 3.3
19 3.6
20 2.2
IC1401
1 0.5
2 13.0
3 -11.4
4 -12.8
5 0.1
6 13.4
7 0.5
IC1602
1 4.5
2 0
3 0
4 4.6
5 4.6
6 4.6
7 4.6
8 4.6
9 1.3
10 4.6
11 3.4
12 3.4
13 2.7
14 2.6
15 0
16 9.1
17 0
18 4.8
19 3.9
20 3.9
21 4.5
22 4.6
23 4.6
24 4.6
25 4.6
26 4.6
27 4.6
28 0
29 0
30 4.5
IC1650
1 0
2 0
3 25.2
4 0
5 0
6 0
7 12.5
8 0.7
9 0
10 26.5
11 16.8
12 12.7
IC1701
1 3.3
2 2.6
3 2.5
4 3.3
5 3.2
6 0
7 3.3
8 2.8
9 0
10 0
11 0
12 0
13 2.3
14 8.2
15 5.0
16 2.8
17 3.8
18 0
19 4.0
20 0
21 0.8
22 0.8
23 1.8
24 1.8
25 3.8
26 3.8
27 4.4
28 1.9
29 1.8
30 0
31 2.0
32 0
33 1.5
34 0.4
35 2.5
36 2.0
37 2.7
38 4.4
39 8.2
40 3.3
41 0
42 3.8
43 1.5
44 3.3
45 1.9
46 2.5
47 2.6
48 2.5
49 2.8
50 4.9
51 3.1
52 3.0
53 3.2
54 3.3
55 0
56 3.3
57 0
58 1.5
59 1.6
60 0.3
61 3.3
62 4.9
63 4.9
64 5.1
IC1702
1 0
2 0
3 0
4 0
5 5.0
6 4.9
7 0
8 4.9
IC1801
1 4.9
2 4.4
3 4.9
4 4.4
5 4.9
6 0
7 5.3
8 4.4
9 4.9
10 4.4
11 4.9
12 7.0
13 5.9
14 4.4
15 4.4
16 4.9
17 4.4
18 4.4
19 5.7
20 0
21 4.9
22 0
23 5.1
24 4.2
25 3.4
26 4.2
27 4.1
28 0
29 2.7
30 2.6
31 0
32 4.9
33 0
34 5.0
35 4.2
36 4.2
37 5.0
38 4.4
39 3.4
40 9.0
41 3.5
42 4.4
43 4.9
44 4.4
IC1901
1 1.8
2 0.7
3 302.3
4 19.5
5 0
IC1951
1 115.3
2 10.1
3 0
IC1972
1 3.3
2 0
3 5.1
4 5.1
IC1974
1 4.6
2 4.7
3 9.2
4 0
5 5.1
6 11.7
7 5.2
TU1001
1
(AGC)
4.4
2(BT) 4.6
3(AS) 0
4
(SCL)
2.7
5
(SDA)
2.7
6(BM) 5.1
7(5V) 5.0
8
(LOCK)
0
9(32V) 33.2
10
(NC)
0
11(IF) 0
Q1101
E 1.6
C 9.1
B 2.3
Q1102
E 0
C 0
B 3.1
Q1104
E 4.9
C 0
B 4.3
Q1105
E 0
C 0
B 2.8
Q1106
E 0
C 4.9
B 0
Q1108
E 4.2
C 9.1
B 4.9
Q1109
E 0
C 0
B 4.3
Q1110
E 0
C 0
B 2.8
Q1111
E 4.2
C 9.1
B 0
Q1130
E 4.6
C 0
B 4.3
Q1131
E 0
C 0
B 2.8
Q1132
E 1.9
C 9.1
B 0
Q1133
E 3.2
C 0
B 2.6
Q1134
E 0
C 0
B 2.8
Q1135
E 0
C 3.7
B 0
Q1136
E 3.1
C 9.1
B 3.7
Q1137
E 1.8
C 8.1
B 2.4
Q1138
E 0
C 0
B 4.6
Q1301
E 2.7
C 0
B 2.1
Q1302
E 2.4
C 0
B 1.7
Q1521
E 0
C 15.7
B 0
Q1522
E 0
C 115
B -0.1
Q1591
E 115.3
C 0
B 115.2
Q1592
E 0
C 5.1
B 0
Q1660
E 0
C 0
B 0.7
Q1661
E 0
C 18.5
B 0
Q1683
E 9.1
C 0
B 9.1
Q1684
E 0
C -0.1
B 0
Q1685
E 0
C 0
B -0.1
Q1686
E 0
C 0
B -0.1
Q1701
E 3.3
C 3.2
B 2.7
Q1702
E 3.3
C 0
B 3.2
Q1703
1 0
2 5.1
3 5.1
4 3.3
5 0
Q1720
E 5.1
C 0
B 5.1
Q1801
E 0
C 0
B -0.1
Q1802
E 0
C 0
B -0.1
Q1803
E 0
C -0.1
B 0
Q1804
E 4.4
C 9.1
B 5.0
Q1860
E 2.4
C 9.1
B 3.0
Q1861
E 7.4
C 1.7
B 6.8
Q1862
E 7.5
C 1.7
B 6.9
Q1952
E 0
C 0
B 0.6
Q1953
E 0
C 5.6
B 0
Q1954
E 0
C 9.1
B 0
Q1350
E 2.7
C 147.8
B 3.2
Q1351
E 144.5
C 6.6
B 147.8
Q1352
E 10.4
C 0.3
B 10.9
Q1360
E 2.5
C 156.6
B 3.0
Q1361
E 153.5
C 6.6
B 156.6
Q1370
E 2.7
C 144.0
B 3.2
Q1371
E 141.2
C 6.5
B 144.0
IC8801
1 4.9
2 5.0
3 0
Q8801
E 5.7
C 0
B 8.2
<MAIN PWB>
<MAIN PWB
(CRT SOCKET)>
<FRONT CONROL PWB>
VOLTAGE CHART
FRONT CONTROL PWB PATTERN
No. 52190
2-13 2-14
No. 52190

VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No. 52190)
Printed in Japan
WPC