SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.YA258B
2006/2
COLOR TELEVISION
YA258B
2006
2
AV-N29F46/R, AV-N29F46/S,
AV-N34F46/Y, AV-N34F46/Z
CORRECTION ITEM
MAIN PWB CIRCUIT DIAGRAM (2/2) SHEET 2 (Page 2-7)
Supplementary
Please be informed that there are errors in the following service manuals.
AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3).
INCORRECT
CORRECT
!
!
!
R914
D910
K918
R913
C919
K914
K916
D917
R915
C912
D914
C916
R909
R918
IC911
D918
C920
D912
R919
D915
C914
D913
R930
K917
K920
C913
Y916
C917
Y917
K912
R912
F905
T921
Y907
680
.15
.01/400
BW
2200p
*5
330p
47
2.2K
OPEN
*10
680K
100/50
*5
22K
470p
OPEN
.0018
OPEN
.18
BW
!
!
!
R914
D910
K918
R913
C919
K914
K916
D917
R915
C912
D914
C916
R909
R918
IC911
D918
C920
D912
R919
D915
C914
D913
R930
K917
K920
C913
Y916
C917
Y917
K912
R912
F905
T921
Y907
680
.15
.01/400
BW
2200p
*5
330p
47
2.2K
OPEN
*10
680K
100/50
*5
22K
470p
OPEN
.0018
OPEN
.18
BW
BASIC CHASSIS
GJ5
(No.YA258B)
CRT Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
Victor Company of Japan, Limited
VPT
Printed in Japan
SECTION 1
PRECAUTION
Please refer to "AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3)" about this section.
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Please refer to "AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3)" about this section.
SECTION 3
DISASSEMBLY
Please refer to "AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3)" about this section.
SECTION 4
ADJUSTMENT
Please refer to "AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3)" about this section.
SECTION 5
TROUBLESHOOTING
Please refer to "AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z (No.YA258 2005/3)" about this section.
SERVICE MANUAL
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.YA258
2005/3
COLOR TELEVISION
YA258
2005
3
AV-N29F46/R, AV-N29F46/S,
AV-N34F46/Y, AV-N34F46/Z
TABLE OF CONTENTS
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
BASIC CHASSIS
GJ5
1-2 (No.YA258)
SPECIFICATION
Design & specifications are subject to change without notice.
Items
Contents
AV-N29F46
AV-N34F46
Dimensions (W
× H × D)
82.9 cm
× 59.3 cm × 51.9 cm
93.9 cm
× 68.5 cm × 57cm
Mass
43.0 kg
64.0 kg
TV RF System
CCIR (M)
Color System
NTSC
Sound System
BTSC (Multi Channel Sound)
Teletext System
Closed Caption (T1 - T4 / CC1 - CC4)
TV Receiving Channels
and Frequency
VHF low
VHF high
UHF
CATV
02ch - 06ch: 54 MHz - 88 MHz
07ch - 13ch: 174 MHz - 216 MHz
14ch - 69ch: 470 MHz - 806 MHz
54MHz - 804 MHz
Low Band: 02 - 06
High Band: 07 - 13
Mid Band: 14 - 22
Super Band: 23 - 36
Hyper Band: 37 - 64
Ultra Band: 65 - 94, 100 - 135
Sub Mid Band: 01, 96 - 99
TV / CATV Total Channel
181 Channels
[Reception of channel A-5 ("95" of the TV set's on-screen CABLE channel) is
recommended for your TV set.]
Intermediate Frequency
Video IF
Sound IF
45.75 MHz
41.25 MHz (4.5 MHz)
Color Sub Carrier
3.58 MHz
Power Input
AC120 V, 60 Hz
Power Consumption
140 W
160 W
Picture Tube (Visible size)
68 cm (29") Measured diagonally
(H: 55.4 cm
× V: 41.4 cm)
80 cm (34") Measured diagonally
(H: 65.6 cm
× V: 49.6 cm)
High Voltage
30.0 kV ±1.3 kV [at Zero beam current]
31.4 kV ±1.3 kV [at Zero beam current]
Speaker
6.5 cm
× 13 cm, Oval type × 2
Audio Power Output
9 W + 9 W
Antenna Terminal (VHF / UHF)
F-type connector, 75
unbalanced
Video / Audio input
[Input-1/2/3]
Component Video
[Input-2]
S-video
[Input-1]
Video
Audio
RCA pin jack
× 3
Y : 1V(p-p), 75
, negative sync
Pb/Pr : 0.7 V(p-p), 75
Mini DIN 4-pin connector
× 1
Y : 1 V(p-p), 75
, negative sync
C : 0.286 V(p-p)(burst signal), 75
1 V(p-p), 75
, negative sync, RCA pin jack × 2
500 mV(rms)(-4dBs), high impedance, RCA pin jack
× 6
Audio Output (Fix)
500 mV(rms)(-4dBs), low Impedance, (400 kHz when modulated 100 %), RCA pin jack
× 2
Remote Control Unit
RM-C1258G (AA/R6/UM-3 battery
× 2)
(No.YA258)1-3
SECTION 1
PRECAUTION
1.1
SAFETY PRECAUTIONS
(1) The design of this product contains special hardware,
many circuits and components specially for safety
purposes. For continued protection, no changes should be
made to the original design unless authorized in writing by
the manufacturer. Replacement parts must be identical to
those used in the original circuits. Service should be
performed by qualified personnel only.
(2) Alterations of the design or circuitry of the products should
not be made. Any design alterations or additions will void
the manufacturer's warranty and will further relieve the
manufacturer of responsibility for personal injury or
property damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special
safety-related
characteristics.
These
characteristics are often not evident from visual inspection
nor can the protection afforded by them necessarily be
obtained by using replacement components rated for
higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in
the parts list of Service manual. Electrical components
having such features are identified by shading on the
schematics and by (
) on the parts list in Service
manual. The use of a substitute replacement which does
not have the same safety characteristics as the
recommended replacement part shown in the parts list of
Service manual may cause shock, fire, or other hazards.
(4) Don't short between the LIVE side ground and
ISOLATED (NEUTRAL) side ground or EARTH side
ground when repairing.
Some model's power circuit is partly different in the GND.
The difference of the GND is shown by the LIVE : (
) side
GND, the ISOLATED (NEUTRAL) : (
) side GND and
EARTH : (
) side GND.
Don't short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND at the same time with a
measuring apparatus (oscilloscope etc.). If above note will
not be kept, a fuse or any parts will be broken.
(5) If any repair has been made to the chassis, it is
recommended that the PDP voltage setting should be
checked or adjusted.
(6) When service is required, observe the original lead dress.
Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced. Always use the
manufacturer's replacement components.
(7) Isolation Check (Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an
isolation check on the exposed metal parts of the cabinet
(antenna terminals, video/audio input and output terminals,
Control knobs, metal cabinet, screw heads, earphone jack,
control shafts, etc.) to be sure the product is safe to operate
without danger of electrical shock.
a) Dielectric Strength Test
The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand a
voltage of 3000V AC (r.m.s.) for a period of one second. (.
. . . Withstand a voltage of 1100V AC (r.m.s.) to an
appliance rated up to 120V, and 3000V AC (r.m.s.) to an
appliance rated 200V or more, for a period of one second.)
This method of test requires a test equipment not generally
found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use
a line isolation transformer during this check.). Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal part of the cabinet, particularly
any exposed metal part having a return path to the chassis,
to a known good earth ground (water pipe, etc.). Any
leakage current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not
use a line isolation transformer during this check.). Use
an AC voltmeter having 1000
per volt or more
sensitivity in the following manner. Connect a 1500
10W resistor paralleled by a 0.15
µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the
resistor connection to each exposed metal part,
particularly any exposed metal part having a return path
to the chassis, and measure the AC voltage across the
resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Any voltage measured must
not exceed 0.75V AC (r.m.s.). This corresponds to
0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
1500
10W
0.15 F AC-TYPE
GOOD EARTH GROUND