Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury,
harmful radiation and materials, various measures are provided in this Plasma display.
Be sure to read cautionary items described in the manual to maintain safety before servicing.
Serviceman Warning
1. Since Panel Module and Front Filter are made of glass, handling of the broken Module and
Filter shall be handled carefully in order not to be injured.
2. Replacement work shall be started after the Panel Module and the AC/DC Power supply become
sufficiently cool.
3. Special care shall be taken to the display area in order not to damage its surface.
4. The Panel Module shall not to be touched with bare hand to protect its surface from stains.
5. It is recommended using clean soft gloves during the replacement work in order to protect notonly the display area of the Panel Module but also the serviceman himself.
6. The Chip Tube of Panel Module (located upper left of the back) and flexible cables connecting
Panel glasses to drive circuit PWBs are very weak, so sufficient care should be taken so as
not to break them. If you break the Chip Tube, the Panel will not display any more.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Plasma Display
October 2004
42PMA300EZ (PW1A)
PRECAUTIONS
● How to clean the plasma screen panel of the monitor
Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet.
To prevent scratching or damaging the plasma screen face, do not knock or rub the surface with sharp or
hard objects. Clean the screen with a soft cloth moistened with warm water and dry with a soft cloth. If it is
not enough, then use a cloth with mild detergent. Do not use harsh or abrasive cleaners.
● How to clean the cabinet of the monitor
Use a soft cloth to clean the cabinet and control panel of the monitor. When excessively soiled dilute a neutral detergent in water, wet and wring out the soft cloth and afterward wipe with a dry soft cloth.
Never use acid/alkaline detergent, alcoholic detergent, abrasive cleaner, powder soap, OA cleaner, car wax,
glass cleaner, etc. especially because they would cause discoloration, scratches or cracks.
The 42-inch color plasma display panel, with a resolution of 852 (H) x 480(V) pixels, creates a high-definition,
large-screen (aspect ratio : 16:9) and low-profile flat display. Free from electromagnetic interferences from
geomagnetic sources and ambient power lines, the panel produces high-quality display images free from
color misconvergence and display distortion.
● High Performance Digital Processor
A wide range of personal computer signals can be handled, from 640 x 400, 640 x 480 VGA to 1600 x 1200
UXGA.(RGB Analog input)
● Easy-to-use remote control and on screen display system
The remote control included eases the work of setting display controls. Further, the on-screen display
system, displays the status of signal reception and display control settings in an easy-to-view fashion.
● Power saving system
The International ENERGY STAR power saver feature saves power consumption automatically when
input signals are not available.
When connected to a VESA DPMS-compliant PC, the monitor cuts its power consumption while it is idle.
● TruBass
TruBass, SRS and ( ) symbol are trademarks of SRS Labs,Inc.
TruBass technology is incorporated under license from SRS Labs, Inc.
● One mini D-sub terminal and one DVI-D terminal for RGB input
The D-sub terminal can also receive the RGB-component by On-Screen Display control.
● One composite/S.video input terminal and two component video input terminals added with VIDEO board
One component input is possible to switch to RGB signal input from the Menu screen.
● One SCART terminal for the signal of the European standard added with VIDEO board
It operates as composite/S.video input and RGB input terminal, or composite video output terminal.
● One composite video output terminal as a monitoring output added with VIDEO board
● Simple type of the remote control
1
2. Specifications
42PMA300EZ (PW1A)
Display
Panel
Net dimensions
(excluding Speakers/Stand)
Net weight
(excluding Speakers/Stand)
Ambient
conditions
Power supply
Power consumption/at standby
Audio output
(RGB input)
Input signals
(Video input)
Input signals
Video output Signal
dimensions
Resolution
Temperature
Relative humidity
Input terminals
Video signals
Sync signals
Input terminals
Video signals
Approx. 42 inches (920 (H) x 518 (V) mm, diagonal 1059mm)
852 (H) x 480 (V) pixels
1030 (W) x 636 (H) x 91 (D) mm
33.2kg
Operating : 5 to 35, Storage : -15 to 60
Operating : 20% to 80%, Storage : 20% to 90% (non-condensing)
AC100 - 240V, 50/60Hz
310W / <3W
12W + 12W (6ǡ)
RGB2 analog RGB input terminal (D-sub 15-pin)
RGB2 audio input terminal (3.5mm Stereo Mini Jack)
• The back cover is provided with
indications to distinguish the
adjustment buttons.
42PMA300EZ (PW1A)
• The main power switch is located at the back, on the
MENU button
lower surface.
Main power switch
Remote-control
receiver
Indicating lamp
VOLUME
UP/DOWN
buttons
(ADJUST
buttons)
SUB-POWER button
• ( ) indicates the function while the MENU is displayed on the screen.
PROGRAM DOWM button
( SELECT button)
INPUT SELECT button
(OK button)
PROGRAM UP button
( SELECT button)
[Remote control]
3
42PMA300EZ (PW1A)
4. Service points
Lead free solder
This product uses lead free solder (unleaded) to help preserve the environment. Please read these
instructions before attempting any soldering work.
Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead
free solder can splatter at high temperatures (600˚C).
Lead free solder indicator
Printed circuit boards using lead free solder are engraved with an "F."
Properties of lead free solder
The melting point of lead free solder is 40-50˚C higher than leaded solder.
Servicing solder
Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended.
Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not
taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.)
Precautions when using leaded solder
Remove all lead free solder from soldered joints when replacing components.
If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the
lead free solder has been completely melted (do not apply the soldering iron without solder).
Servicing soldering iron
A soldering iron with a temperature setting capability (temperature control function) is recommended.
The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high
stable temperature (large heat capacity), and that allows temperature adjustment according to the part being
serviced, to avoid poor servicing performance.
Recommended soldering iron:
Soldering iron with temperature control function (temperature range: 320-450˚C)
702 Dispersion Time of Sustain current 0: 2 Times, 1: 4 timesFor PC-Movie mode11
703 SMPLINGFor CCD2550
704 POLLINGFor CCD25515
705 STARTFor CCD72
706 TIMEOUTFor CCD305
707 STATUSFor CCD72
708 CCD-HPFor CCD7940
709 CCD-CLKFor CCD7957
710 Sharpness GainFor Main 480i/576i1510
711 Sharpness EQFor Main 480i/576i31
712 Sharpness f0For Main 480i/576i31
713 Cb Offset1For Main 480i/576i158
714 Cr Offset1For Main 480i/576i158
715 Y out levelFor Main 480i/576i6315
716 C out levelFor Main 480i/576i6315
717 Sharpness GainFor Sub 480i/576i1510
718 Sharpness EQFor Sub 480i/576i31
719 Sharpness f0For Sub 480i/576i31
720 Cb Offset1For Sub 480i/576i158
721 Cr Offset1For Sub 480i/576i158
722 Y out levelFor Sub 480i/576i6315
723 C out levelFor Sub 480i/576i6315
724 Offset value of adjusted TINT for impact to No.42-45For COMPAL factory2011
725 Use item No.724 O:No , 1:YesFor COMPAL factory10
726 Free3117
727 Free3120
728 Free311
729 Free311
730 Free5312
731 Free311
732 Free--
733 Free--
734 Free--
735 Free--
736 Free--
737 Free--
738 Free--
739 Free--
740 Gain adjustment of RGB amplifier (FLAON)Main--㪦㪦
741 Gain adjustment of RGB amplifierSub--㪦㪦
742 Automatic White Peak Adj.Single Picture mode--㪦㪦
743 Automatic White Peak Adj.Multi Picture mode--㪦㪦
744 EEPROM Initialize(0:No, 1:Yes)10
745 Enter to service menu of sub mi-con--
Function
TV10
50/60Hz255-
15/28/31/33/45kHz255-
50/60Hz255-
15/28/31/33/45kHz255-
Maximum
Value
Default
Changed Component
Formatter
PWB
VIDEO
PWB
TUNER
PWB
PDP
PANEL
16
42PMA300EZ (PW1A)
The Expression of input signal mode (format)
PAL1: S and Composite of PAL/SECAM
PAL2: Component of PAL (YCBCR)
PAL3: Component of PAL (YPBPR)
PAL4: Component of PAL (YCBCR-SCART)
PAL: PAL1-4
NT1: S and Composite of NTSC
NT2: Component of NTSC (YCBCR)
NT3: Component of NTSC (YPBPR)
NT4: Component of NTSC (YCBCR-SCART)
NTSC: NTSC1-4
HD1-6: Component (shown in the table )
HD7: Component of 1080i/50 (YPBPR)
HD8: Component of 1080i/50 (YCBCR)
HD9: Component of 576p (YPBPR)
HD10: Component of 576p (YCBCR)
HD: HD1-10 of Component
TV: NTSC / HD
PC: PC signal
Video
Input
AV1
AV2
System
PAL15.75kHz
NTSC15.75kHz
PAL31.25kHz
NTSC31.50kHz
NTSC45.00kHz
PAL28.125kHz
NTSC33.75kHz
Judgment of
H.Frequency
(576i)
(480i)
(576p)
(480p)
(720p)
(1080i)
(1080i)
Video Input
Setup
AutoPAL2
SDTV/DVDPAL2
HDTVPAL3
AutoNT2
SDTV/DVDNT2
HDTVNT3
AutoHD10
SDTV/DVDHD10
HDTVHD9
AutoHD3
SDTV/DVDHD3
HDTVHD2
AutoHD5
SDTV/DVDHD6
HDTVHD5
AutoHD7
SDTV/DVDHD8
HDTVHD7
AutoHD1
SDTV/DVDHD4
HDTVHD1
Mode
Factory Reset
After all of the adjustments of main chassis are finished, perform FACTORY RESET.
Press the SUB-POWER( ) button, INPUT SELECT() button and button at the same time, and hold for
more than 5 seconds.
The unit is set to factory settings.
17
42PMA300EZ (PW1A)
Item
Adjustment Preparations
Turn on the set and perform
(1)
pre-heat run more than 1
min with burn-in screen.
Receive full back pattern
(2)
signal
(or Video silence signal;
it will be automatically
turned off after a few
seconds by power save
function.)
Connect voltmeter leads
(3)
to Vs (or Va) and GND
test points of the power unit.
Power Unit Vs, Va Adjustment
Adjustment Procedures
(1)
Turn Vs ADJ to adjust Vs voltage
to be within ±0.1V of the value
specified in the label on the panel.
(2)
Turn Va ADJ to adjust Va voltage
to be within ±0.2V of the value
specified in the label on the panel.
(3)
Reconfirm that Vs voltage remains
within ±0.1V of the specified value.
Readjust if it’ s outside of the margin.
Label example
<LOT>N6
Vs= 185.0V
Va=65.0V
Adj. point
Permissive level of voltage in
sufficient time of heat-run
performed is:
Vs: within±0.45V
Va: within±0.55V
Label position (Reference)
Upper right
If it’ s hard to read the
voltage value because of the
wiring,
highlight it in advance to be
visible.
Refer the figure below
Remarks
Power unit for WVGA
Va ADJ
Va
GND
Vs
Vs ADJ
18
42PMA300EZ (PW1A)
Item
AUTOMATIC SIGNAL LEVEL ADJ USTMENT –RGB (1)
Preparation Procedure
(1) Input the adjustment signal of VGA (60Hz)
(1) Select RGB2 and enter the service adjustment
format into RGB2 [D-sub] input terminal.
the adjustment signal
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
White
Black
0.7V
[Note] Never adjust without use of the specified signal.
(2) Select No.740 “RGB Amp. Gain ADJ.” and press
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
mode.
OK button for more than 2 seconds to start the
adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
Item
AUTOMATIC SIGNAL LEVEL ADJ USTMENT –RGB (2)
Preparation Procedure
(1) Input the adjustment signal of 576p
480p
(1)
Select AV1 and enter the service adjustment mode.
or
format into AV1 input terminal.
the adjustment signal (2) Select No.740 “RGB Amp. Gain ADJ.” and press
OK button for more than 2 seconds to start the
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
(3) Select No.741 “RGB Amp. Gain ADJ.” and press
OK button for more than 2 seconds to start the
adjustment.
White
Black
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
0.7V
[Note] Never adjust without use of the specified signal.
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
19
42PMA300EZ (PW1A)
Item AUTOMATIC SIGNAL LEVEL ADJ USTMENT –VIDEO
Preparation
(1) Input the adjustment signal of 576p or
480p format into AV1 input terminal.
the adjustment signal
The signal level of black area
should be pedestal level.
This signal must not be inserted
characters etc.
White
Black
0.7V
(1) Select AV1 and enter the service adjustment mode.
(2) Select No.743 “Automatic White peak Adj. (Multi)”
and press OK button for more than 2 seconds to
start the adjustment.
It will complete the adjustment after the OSD of
“AUTO MODE” disappeared.
Procedure
[Note] Never adjust without use of the specified signal.
If that were done by mistake, the picture would become abnormal in black level, contrast and color.
In this case, it will be recovered by re-adjustment in the specified way.
20
42PMA300EZ (PW1A)
Item
Video Color Temperature Adjustment (Cool)
Adjustment Preparations
(1)
Set the output of signal
generator to white raster.
(Ratio:100%)
(2)
Component signal (480i)
Video level:0.714Vp-p
SYNC:0.286Vp-p
Set-up level:0V
(3)
Set Picture MENU to
[RESET].
Set into Factory adjustment
(4)
mode.
Adjustment Procedures
(1)
Perform the following adjustment with
the remote control.
(2)
Set the CRT color analyzer (CA100)
at the center of the panel.
(3)
Ensure that adjustment No. 0, 1, 2
are all set as 224.
(4)
After receiving Video signal,
step down the two (or one) among
adjustment No. 0, 1, 2 and adjust
the value as shown below.
At least one of the data should be 224.
Adj. pointI
2
C
Remarks
Color temperature should
be adjusted under the
condition in which the
screen is the brightest, thus
the initial value of
adjustment is it’s maximum
value.
Only reducing the brightness
controls the adjustment,
thus weaken the brighter
color to adjust.
Color temperature is at
Cool mode while the
following No. is selected.
Adjustment No. 00, 01, 02.
< Specification >
Video color temperature (Cool)
x=0.268±0.005
y=0.283±0.005
(Color temp:12000°K±10MPCD)
21
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