SERVICE MANUAL
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.52108C
2005/9
PDP COLOUR TELEVISION
52108C
2005
9
PD-42DX/T
DIFFERENCE ITEM
CONFIRMING REFERENCE VOLTAGE (Page 8)
Getting the characteristic voltage value of the PDP unit
The URL of the Web site where the voltage value is described has been changed. The new URL is as shown below.
NOTE: The site cannot be connected with the old address.
Supplementary
Part of the confirming reference voltage has been changed.
For details other than those described in this manual, please refer to the PD-42DX/T service manual
(No.52108, 2003/1) (No.52108B, 2004/6).
Old address : http://203.126.119.92/necnpd/
New address : http://www.klasglobal.com/necnpd/login.asp
BASIC CHASSIS
SB3
(No.52108C)
AV & MULTIMEDIA COMPANY 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 "PD-42DX/T (No.52108)" about this section.
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Please refer to "PD-42DX/T (No.52108)" about this section.
SECTION 3
DISASSEMBLY
Please refer to "PD-42DX/T (No.52108)" about this section.
SECTION 4
ADJUSTMENT
Please refer to "PD-42DX/T (No.52108)" about this section.
SECTION 5
TROUBLESHOOTING
Please refer to "PD-42DX/T (No.52108)" about this section.
SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.52108
2003/01
PD-42DXT
PDP COLOR TELEVISION
52108
2003
01
PD-42DXT
TABLE OF CONTENTS
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
4
TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
TS-42DXT
[FRONT SPEAKER (R)]
TS-42DXT
[FRONT SPEAKER (L)]
TS-42DXT
[SUB WOOFER]
[RM-C289]
PD-42DXT
[PLASMA DISPLAY UNIT]
TU-42DXT
[RECEIVER UNIT]
BASIC CHASSIS
SB3
PD-42DXT
1-2 (No.52108)
SPECIFICATION
Item
Contents
Dimensions (W x H x D)
Plasma display unit
103.5cm x 64.0cm x 9.8cm (without Front speaker)
112.3cm x 64.0cm x 10cm (with Front speaker)
Receiver unit
43.5cm x 9.9cm x 38.2cm
Front speaker
4.2cm x 63.9cm x 5.4cm
Sub woofer
3.5cm x 23.0cm x 12.6cm
Mass
Plasma display unit
33.0kg (without Front speaker)
35.5kg (with Front speaker)
Receiver unit
5.6kg
Front speaker
0.8kg (per one speaker without attachment metal)
Sub woofer
3.7kg
Color System
NTSC-M
Receiving frequency
VHF
91.25MHz~103.25MHz (1~3ch)
171.25MHz~217.25MHz (4~12ch)
UHF
471.25MHz~765.25MH (13~62ch)
CATV
109.25MHz~165.25MHz (C13~C22ch)
223.25MHz~313.25MHz (C23~C38ch)
Intermediate frequency
Video: 58.75MHz
Sound: 54.25MHz
Color: 55.17MHz (3.58MHz)
Power Input
AC110V, 50Hz/60Hz
Power Consumption
Plasma display unit
Operate: 360W, Stand by: 0.4W
Receiver unit
Operate: 41W, Stand by: 0.8W
Plasma display panel (PDP)
42-inch wide aspect (16:9) QLE0020-001
Screen size (W x H x D)
92.1cm x 51.8cm x 105.7cm
Display pixels
Horizontal: 1024 dots
Vertical: 768 dots
Audio output
Front: 10W+10W, Sub woofer: 15W
Speaker
Front speaker
9.5cm x 1cm square x 2
Sub woofer (for bass sound)
16cm Round x 1
Aerial input
VHF/UHF
75 ohm Unbalanced Coaxial
Input /
Output jack
VIDEO/AUDIO IN
VIDEO 1
VIDEO 2
VIDEO 3 (DVD)
VIDEO 4
S1-VIDEO
(VIDEO 4: S-VIDEO)
Mini DIN4 pin x 3
Y: 1V (p-p) Positive (Negative sync provided), 75 ohm
C: 0.286V (p-p) (Burst signal), 75 ohm
VIDEO
1V (p-p) Positive (Negative sync provided), 75 ohm RCA pin jack x 4
AUDIO
500mV (rms), High Impedance RCA pin jack x 8
VIDEO 3/DVD
COMPONENT
VIDEO IN
1125i / 750p
525p / 525i
RCA pin jack x 3
Y: 1V (p-p) (Sync signal: ±0.35V(p-p), 3-value sync.), 75 ohm
Pb/Pr: ±0.35V(p-p), 75 ohm
Y: 1V (p-p) Positive (Negative sync provided), 75 ohm
Cb/Cr: 0.7V(p-p), 75 ohm
D4 VIDEO IN
(VIDEO 1: D-VHS,
VIDEO 4)
1125i / 750p
525p / 525i
2 sequences 14pin x 1
Y: 1V (p-p) (Sync signal:
±0.35V(p-p), 3-value sync.), 75 ohm
Pb/Pr:
±0.35V(p-p), 75 ohm
Y: 1V (p-p) Positive (Negative sync provided), 75 ohm
Cb/Cr: 0.7V(p-p), 75 ohm
MONITOR /
REC OUT
S1-VIDEO
Mini DIN4 pin x 1
Y: 1V (p-p) Positive (Negative sync provided), 75 ohm
C: 0.286V (p-p) (Burst signal), 75 ohm
VIDEO
1V (p-p), 75 ohm, Negative sync RCA pin jack x 2
AUDIO
500mV (rms), Low Impedance RCA pin jack x 2
AUDIO OUT (Fixed)
500mV (rms), Low Impedance RCA pin jack x 2
Headphone
3.5mm Stereo mini jack x 1
AV COMPULINK III
3.5mm mini jack x 1
i-LINK IN/OUT
4 Pin S400 x 2
Optical digital audio output
-18dBm, 660nm (MPEG 2 AAC or PCM according to the menu settings)
Telephone line
2P Modular jack, Modem transmission rate 2400bps
Video remote controller
3.5mm mini jack
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
Pin No.
Signal name
1
Y
5
Pr/Cr
9
LINE-2
13
Spare line 3
2
Y GND
6
Pr/Cr GND
10
Spare line 2
14
Switch
3
Pb/Cb
7
Spare line 1
11
LINE-3
4
Pb/Cb GND
8
LINE-1
12
Switch GND
D TERMINAL (Pin layout)
8
1
2
3
4
5
6
7
9
10
11
12
13
14
PD-42DXT
(No.52108)1-3
SECTION 1
PRECAUTIONS
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 ISOLAT-
ED (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 B1 setting should be checked or
adjusted (See ADJUSTMENT OF B1 POWER SUPPLY).
(6) The high voltage applied to the picture tube must conform
with that specified in Service manual. Excessive high
voltage can cause an increase in X-Ray emission, arcing
and possible component damage, therefore operation
under excessive high voltage conditions should be kept to
a minimum, or should be prevented. If severe arcing
occurs, remove the AC power immediately and determine
the cause by visual inspection (incorrect installation,
cracked or melted high voltage harness, poor soldering,
etc.). To maintain the proper minimum level of soft X-Ray
emission, components in the high voltage circuitry
including the picture tube must be the exact replacements
or alternatives approved by the manufacturer of the
complete product.
(7) Do not check high voltage by drawing an arc. Use a high
voltage meter or a high voltage probe with a VTVM.
Discharge the picture tube before attempting meter
connection, by connecting a clip lead to the ground frame
and connecting the other end of the lead through a 10k
2W resistor to the anode button.
(8) 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.
(9) 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 ohms per volt or more
sensitivity in the following manner. Connect a 1500 ohm
10W resistor paralleled by a 0.15µF 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