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SCHEMATIC DIAGRAMS
No. 51885
Dec. 2001
AV-N29702
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
AV-N29702/S
CD-ROM No. SML200201
COLOR TELEVISION
TV
BASIC CHASSIS
AC


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AV-N29702
q NOTE ON USING CIRCUIT DIAGRAMS
1. SAFETY
The components identified by the
symbol and shading are
critical for safety. For continued safety replace safety critical
components only with manufactures recommended parts.
2. SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1) Input signal
: Color bar signal
(2) Setting positions of each knob/button and
variable resistor
: Original setting position when
shipped
(3) Internal resistance of tester : DC 20kØ/V
(4) Oscilloscope sweeping time : H
20µS/div
:V
5mS/div
: Others
Sweeping time is
specified
(5) Voltage values
: All DC voltage values
9Since the voltage values of signal circuit vary to some extent ac-
cording to adjustments, use them as reference values.
3. INDICATION OF PARTS SYMBOL [EXAMPLE]
·In the PW board
: R1209
R209
4. INDICATIONS ON THE CIRCUIT DIAGRAM
(1) Resistors
· Resistance value
No unit
: [Ø]
k: [kØ]
M: [MØ]
· Rated allowable power
No indication
: 1/10 [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
9Composition 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]
9 Electrolytic Capacitors
47/50[Example] : Capacitance value [µF]/withstand voltage[V]
STANDARD CIRCUIT DIAGRAM
·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
9Respective voltage values are indicated
(5) Test point
: Test point
: Only test point display
(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 cau-
tion is not respected, an electric shock may be caused. Therefore,
make sure that the power cord is surely removed from the recepta-
cle 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 measur-
ing 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 cir-
cuit constants may be subject to change for improvement with-
out any notice.
Dec. 2001 No. 51885


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AV-N29702
2-2
No.51885
CONTENTS
SEMICONDUCTOR SHAPES ............................................................................................................................ 2-2
BLOCK DIAGRAM ...................................................................................................................................................... 2-3
CIRCUIT DIAGRAMS ................................................................................................................................................2-5
MAIN PWB CIRCUIT DIAGRAM (1/3) ....................................................................................................................... 2-5
MAIN PWB CIRCUIT DIAGRAM (2/3) ....................................................................................................................... 2-7
MAIN (3/3), FRONT CONTROL, POWER SW PWB CIRCUIT DIAGRAMS ................................................. 2-9
AV SELECTOR PWB CIRCUIT DIAGRAM ............................................................................................................ 2-11
CRT SOCKET PWB CIRCUIT DIAGRAM .............................................................................................................. 2-13
DAF PWB CIRCUIT DIAGRAM .................................................................................................................................. 2-15
LF PWB CIRCUIT DIAGRAM ...................................................................................................................................... 2-16
PATTERN DIAGRAMS ........................................................................................................................................... 2-17
MAIN PWB PATTERN .................................................................................................................................................... 2-17
AV SELECTOR PWB PATTERN ................................................................................................................................ 2-19
CRT SOCKET PWB PATTERN .................................................................................................................................. 2-21
DAF PWB PATTERN ...................................................................................................................................................... 2-22
FRONT CONTROL, POWER SW AND LF PWB PATTERNS .......................................................................... 2-23
CHANNEL CHART (US) ....................................................................................................................................... 2-25
CHANNEL CHART (CA) ...................................................................................................................................... 2-26
E
C
B
OUT
E
IN
EC B
EC
(G)(D)(S)
B
IN E OUT
EC B
E
C
B
EC B
CHIP TR
TOP VIEW
BOTTOM VIEW
FRONT VIEW
TRANSISTOR
TOP VIEW
BOTTOM VIEW
FRONT VIEW
IC
TOP VIEW
CHIP IC
1N
1N
1N
1
N
N
N
N
N
1
SEMICONDUCTOR SHAPES


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AV-N29702
AV-N29702
2-3
No.51885
BLOCK DIAGRAM
2-4
No.51885
P
J601
COMPONENT
VIDEO-IN
J501
INPUT1
P
Y
IC501
AV SW
IC101
1 CHIP DECODER
IC701
MICRO
COMPUTER
T502
FBT
POWER SUPPLY
CIRCUIT
REG.
AC IN
AC120V 60Hz
B1
FOCUS
IC001
MTS&TONE/VOL
CONTROL
IC702
EEPROM
IC381
AUDIO SW
IC371
AMP
CF021
4.5MHz
TRAP
TU001
TUNER
S-VIDEO
VIDEO
AUDIO L/MONO
AUDIO R
IF
R, G, B
CF041
4.5MHz BPF
RGB DRIVE
IF
SIF
MPX
V. OUT
H. OUT
VTV
R, G, B
V01
SCL0
SDA0
SCL0
SDA0
SCL0
SDA0
SCL0
SDA0
Y
C
L/R
VIDEO
C
Y
C
Y
AV SELETOR PWB (1/2)
FRONT CONTROL PWB
CRT SOCKET PWB
AV SELECTOR PWB (2/2)
MAIN PWB
DAF PWB
POWER SW PWB
IC401
VERT OUT
SCL0
SDA0
LF PWB
J502
INPUT2
VIDEO
AUDIO L/MONO
AUDIO R
J401
INPUT3
(FRONT)
S-VIDEO
VIDEO
AUDIO L/MONO
AUDIO R
J503
AUDIO OUT
AUDIO L
AUDIO R
VOL+
POWER
REMOCON
RECEIVER
VOL-
CH+
CH- MENU
ON TIMER
LED
IC151
SOUND
ENHANCEMENT
AUDIO PROCESSOR
IC401
AUDIO OUT
Q511
H. OUT
DAF
SCREEN
HV
L/R
L/R
L/R
V
H
DY01
DEF YOKE
SP
L
SP
R
COM_Y
COM_CB
COM_CR
SCL1
SDA1
VTV
IC201
3L DIGITAL
COMB FILTER
LPF
BPF
AMP
BUF
B
R
Y
C
Y
C


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2-6
No.51885
2-5
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/3)
AV-N29702
AV-N29702
No.51885
X
Q022
SDA0
VTV
SCL0
AGC_MUTE
BT
0
QRN143J-0R0X
L041
AFT1
0
R002
5V_A
1000/16
C003
1
Q021
9V_VC
4.7k
R318
X
Q651
10/50
C002
5.6k
R140
10/16
N
BP
C136
0.1
B2
C302
1k
R043
100/16
C014
100/16
C023
0.01
C024
S_3
0.01
C046
1
Q024
0.1
B2
C027
XF
C150
5.6k
R860
X
Y651
10/50
C042
2
Q041
2.7k
R041
X
R031
0.1
B2
C116
33/16
C029
12k
R021
0.01
C034
0.1
T
F
C609
UDZS8.2B-X
D101
X
R291
120k
R292
X
C667
X
R032
X
R033
220k
R293
X
R034
EHT
X
C031
X
C032
X
L023
0
Y654
X
L026
X
C035
QGA2501C5-07Z
CN004
0
Y154
X
R037
MPX
10/50
C045
4.7/50
C001
47k
R001
0
R003
0
R004
0
QRN143J-0R0X
L021
X
R027
QAU0176-001
!
TU001
QAX0349-001
CF001
X
C033
22
QQL244K-220Z
L022
5V_A
1000p
C025
X
R036
QAX0639-001Z
CF021
X
L024
2.7k
R038
X
R035
X
Q023
0.01
C011
0.01
C012
5.6k
R013
100
QRE121J-101Y
R014
18
R015
27
R016
1.8k
R012
82
R011
X
C013
0.39
QQLZ014-R39
L012
X
L011
2SC5083/L-P/-T
Q011
0
Y155
X
J602
0.01
C016
0.01
C015
X
R017
X
L013
10/50
C028
X
J602
220
R610
0
QRN143J-0R0X
L027
100/16
C038
470/10
C036
100
R023
10/50
C026
0.01
C037
1k
R024
QAX0642-001Z
CF041
UDZS8.2B-X
D102
820
R028
33k
R029
0.01
C288
560
R025
330
R022
1k
R042
X
IC651
0.01
C030
47p CH
C044
47p CH
C043
22
QQL244K-220Z
L042
CE40668-001Z
X201
330
R026
68k
R030
10p CH
C201
33k
R201
0.47/50
C041
.22/50
C202
2200p
C203
4
D352
2200/6.3
C111
0.01
C112
2.2k
R301
2.2k
R302
2.2k
R303
0
R354
100
R306
100
R305
100
R304
220
R611
COM_Y
220
R612
100K
R018
X
R019
SD
0.1
B2
C393
0.1
B2
C394
0.1 B2
C395
100
R101
100
R102
QAX0324-002
SF011
*5
Q711
100/16
C391
0.01
C392
10k
R799
10k
R798
0
R360
10k
R359
CN0L1
CNMD1
X1W
R856
0.1
T
F
C610
0.1
T
F
C611
TB1253AN
1CHIP DECODER
IC101
QQL244K-470Z
L101
0.01
C237
1/50
C114
.47/50
C113
1M
R111
47 2W
QRG029J-470
R857
27 2W
QRG029J-270
R858
1k
R319
X
R009
1SS355-X
D353
X
Y156
0
R046
33p
C047
0.01
C048
0.15 TF
C354
0.1
T
F
C115
15k
R047
150k
R048
X
C005
X
C006
1
Q352
X
Q353
0
R355
12k
R356
X
R357
0
R039
*3
D305
*3
D306
*3
D307
X
Q851
33/16
C352
X
C353
X
R358
X
Q852
X
R852
X
R851
47/25
C603
X
IC601
TU_POW
75
R601
75
R602
NQR0169-001X
LC601
NQR0169-001X
LC602
75
R603
47/25
C601
47/25
C602
5V_D
56
QQL244K-560Z
L001
CN0E1
X
LC001
NQR0169-001X
LC603
0
Y003
X
C606
0
Y002
C396
X
R604
X
R605
X
LC604
X
LC605
X
R606
X
C604
X
C605
C397
C398
2
Q025
LOOP_F
X
LC606
X
R110
CNMPX
X
R854
X
C855
X
R607
X
R608
X
R609
X
D605
X
D602
4
D601
4
D603
X
D604
4
D606
X
C607
X
C608
B1_POW
X
D853
X
R853
X
1/2W
R859
1.8k
R231
BW
D855
0.82
TF
C021
X
D852
X
D854
X
D851
X
Q351
X
D351
X
R353
X
R352
X
R351
1
Q233
1
Q232
47k
R238
X
C351
56p CH
C233
X
C234
56
QQL244K-560Z
L232
3.9k
R237
3.3k
R241
X
C399
1.5k
R243
100/16
C287
22p
CH
C133
10p
CH
C131
15k
R132
68k
R133
2.7k
R131
5.6k
R134
1
Q131
1k
R135
10p
CH
C132
220/16
C282
0.01
C283
470
R288
ABL
1.8k
R281
680
R283
x
R285
150k
R289
4.7k
R286
10/50
C286
X
R284
.47/50
C281
6.8k
R282
2.2/50
C284
2700p
C285
100
R287
9V_SW
AN7809F
IC852
H_OUT
FBP
EW
QQR0621-002Z
K939
560
R290
X
R652
X
R651
C_SWVC
FSC
X
C663
X
C664
3.3k
R020
Y_SWVC
V_GR3DIN
GR
OUT
1k
R136
1
Q132
1
Q133
1k
R137
1k
R139
1k
R138
10p
CH
C134
33p
CH
C135
0
Y653
AN7805F
IC853
X
Q001
X
D001
NRSA63J-0R0X
Y850
X
C004
X
R008
X
R007
X
R006
X
R005
X
Q002
POW_8V
220/16
C856
477/16
C857
POW_12V
220/16
C853
220/16
C854
AN7812F
IC851
POW_17V
100/25
C851
100/16
C852
NRSA63J-0R0X
Y652
X
R654
X
R653
GR_SW
TP_952.5
LTV
RTV
ASP_ABL
D_SW
X
R155
X
SWITCH
Q153
0
R044
0
R045
0.01
C151
X
R156
VC_R
X
Y/C SW
IC151
GND
Vcc
X
SWITCH
Q154
VC_G
VC_B
VC_YS
GND
TV
V_OUT
X_RAY
YCSW
Y_VCSW
QNN0349-002
J601
J601
SCL0
SD
A0
S_3
COM_CR
9V_VC
AFT1
AFT1
SCL0
VC_YS
VC_R
VC_G
VC_B
SCL0
Y_SWVC
SD
A0
C_SWVC
AGC_MUTE
SD
COM_CR
COM_CB
COM_Y
SD
V_OUT
ASP_ABL
FSC
VC_B
SDA0
VC_YS
VC_R
VC_G
TV
BSR_RY4
BSR_BY4
BSR_Y4
D_SW
BSR_RY2
BSR_BY2
BSR_Y2
ASP_ABL
YCSW
COM_CB
COM_Y
TV
D_SW
X_RAY
SDA0
V_GR3DIN
TU_POW
SCL0
H_OUT
X_RA
Y
FBP
EW
H_OUT
FBP
EW
TU_PO
W
CONTROL
12V
A
GC_MUTE
V_OUT
YCSW
TU
NC
TUNER
AGC
FM
IF
5V LOCK
SCL SDA
ADRS
DEMOD.
AUDIO
ATT
SAW FILTER
BT
NC
PIF
PROC.
A
UDIO
OUT
ANT INPUT
PIF GND
RF
A
G
C
AG
C
IF
LOOP
F
EXT_A
U_IN
DC
NF
AFT
OUT
V
REF
IFVcc
DET
OUT
DE
EMP
4.5MHz
4.5MHzBPF
AMP
IFGND
VCO
Adj
IFVcc
F
12V
9V
5V
3DY/C
GND
TP_952.5
Q011
TRAP
A
UDIO_L
A
UDIO_R
BA17812T
or
or
or
BA17809T
BA17805T
(9V)
Y
Clamp
Filter
CVBS
Int
in
APL
Det
Filter
CVBS
Ext
in
U
in
V
in
C
in
CVBS
out
Dig
GND
V
out
V
Ramp
H
Vcc(9V)
H
AFC
Filter
Blac
k
Det
Filter
H
out
Sync
out
X
Ra
y
FBP
in/GP
out
Dig
VDD
EW
out
ABCL
in
Ik
in
EHT
in
SD
A
SCL
RGB
Vcc(9V)
Ext
B
in
Ext
G
in
Ext
R
in
Ys/Ym
in
SVM
out
YC
GND
B
out
G
out
R
out
YC
Vcc(5V)
CW
out
APC
Filter
X'tal
Video2
Video4
Vcc
GND
GND
GND
H
HH
RY
BY
Y
INPUT-2
(COMPONENT
VIDEO INPUT)
(NOT USED)
(FOR ADJ.)
QGA2501C5-05Z
!
X
MAIN PWB ASS'Y
TO CRT SOCKET PWB CN004
SAC-1543A-M2
: NRSA63J-0R0X
: DTC124EKA-X
: UDZS9.1B-X
: MA153A-X
: 2SA1037AK/QR/-X
: 2SC2412K/QR/-X
: NON MOUNT
3
5
4
1
2
X
0
: IM-BW
BW
NOTE
1.0Vp-p(H)
0.68Vp-p(H)
47
42
IC101
IC101
IC101
38
34
4.6Vp-p(H)
14
15
16
4.0Vp-p(H)
3.5Vp-p(H)
3.5Vp-p(H)
IC101
1.9Vp-p(V)
0V
31.6V
4.7V
2.7V
2.4V
4.7V
4.6V
3.1V
3.7V
4.8V
4.1V
8.8V
5.1
V
4.5V
8.8V
1.1V
8.8V
1.8V
0V
4.8V 2.5V
2.4
V
3.8
V
4V
8.8
V
3.3
V
2.1V
2.3V
1.6V
2.1V
2.3V
2.2V
2.3V
2.4V
3.9V
0V 4.8V
6.8V
8.9V
1.9V 3.1V
0V
0.9
V
3.2
V
3.3V
3V
4.9V
4V
3.1V
1.7V
1.7V
0.6V
7.3
V
4.6
V
1.5V
4.8V
2.4V
2.4V
2.5V
0V
3V
0V
2.2V
2.2V
2.2V
8.9V
2.4V
2.7V 3.1V
0V
2.8V
5.9V
V
2.4
2.1V
4.9V
2.5V
8.8V
3.1V
V
3.8
V
4.4
8.8V
3.1
V
5.7V
0V
0.6V
0V
3.4V
8.8V
4V
V
4.9
4.9V
12.7V
V
8.8
V
15.7
11.8V
9V
V
8.4
V
8.8