Mitsubishi PD-6130 User Manual
MITSUBISHI ELECTRIC
2003
Service
Manual
PLASMA DISPLAY PANEL
PD-6130
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
SPECIFICATIONS
• Power : AC 120V, 50/60Hz
540W (Typical)
6.7A (Maximum)
• Signals
Sync Range : Horiz : 15.5 to 110kHz
(Automatic : step scan)
: Vert : 50.0 to 120 Hz
(Automatic : step scan)
Input Signals : RGB, HD*1,
DVD*1, DTV*
• Input Terminals
RGB : Visual 1 (Analog) : Mini D-sub 15-pin
Visual 2 (Analog) : BNC (R,G,B,H/CS,V)*
Visual 3 (M-LINK) : MONITORLINK
Video : Visual 1 : BNC
Visual 2 : RCA-pin
Visual 3 : S-Video: DIN 4-pin
DVD/HD/DTV : Visual 1 RCA-pin (Y,PB[CB},PR{CR])*
Visual 2 BNC (Y,PB[CB},PR{CR])*1*
Audio : Stereo RCA x 3 (Selectable)
External Control : D-sub 9-pin (RS232C)
1
TM
(DVI)
1
• Sound Output : 9W+9W at 6 ohms
• Dimensions : (W)57.9" (H)34.7" (D)4.7"
(W)1470 (H)880 (D)119 mm
• Weight : 134.5 lbs / 61 kg
*1
HD/DVD/DTV Input Signals supported:
480P (60Hz) 480I (60Hz)
2
525P (60Hz) 525I (60Hz)
576P (50Hz) 576I (50Hz)
625P (50Hz) 625I (50Hz)
720P (60Hz) 1035I (60Hz)
1080I (50Hz) 1080I (60Hz)
*2
The 5-BNC connectors are used as
RGB/PC2 and HD/DVD2 input.
Select one of them under "BNC SELECT".
• Weight and dimensions shown are approximate.
• Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2004 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
CONTENTS
SERVICE SAFETY ............................................................................................................................................ 2-1
TROUBLESHOOTING ....................................................................................................................................... 3-1
METHOD OF ADJUSTMENTS .......................................................................................................................... 4-1
METHOD OF DISASSEMBLY ........................................................................................................................... 5-1
PART LIST ......................................................................................................................................................... 6-1
CONNECTION DIAGRAMS............................................................................................................................... 7-1
BLOCK DIAGRAMS ........................................................................................................................................... 8-1
1-1
SAFETY SERVICE
■ Safety cautions
The matters to be observed without fail are explained below. These matters are indispensable for the prevention
of an accident during the maintenance servicing, the “security of products” after the completion of servicing
work, and the “prevention of the repeated occurrence of similar fault.”
(1) The degree of danger and material damage, caused as a result of wrong use by disregarding the contents
of the display” is distinguished and explained in the table below.
If this display is disregarded and equipment is handled wrongly,
WARNING
CAUTION
(2) Kinds of the matters to be observed are classified and explained in the icons shown below.
This icon indicates a dangerous place where an electric shock is anticipated.
This icon indicates the contents of “caution” that must be borne in mind, without fail.
this can be a cause of physical injury and a fire, thus leading a
person to death or serious injury.
If this display is disregarded and equipment is handled wrongly,
this may lead to personal injury or material damage.
This icon indicates the contents of “caution” that must be practiced, without fail.
WARNING
• Observe the caution matter, without fail.
• In the place where a particular caution is needed during maintenance servicing, such a
caution note is displayed with a label or a stamp that is given to the cabinet, chassis, PWB,
etc. These caution notes and also the caution matters of
instruction manuals, etc., must be observed, without fail.
• Be careful of an electric shock or a burn.
• The power block or the PDP module involves the sections where high voltage or high temperature is prevalent. When equipment is energized, use working gloves in order to prevent
an electric shock or a burn. At the time of transportation, disassembly, reassembly, and the
replacement of parts, such a servicing job must be done after pulling out the power plug.
• Modification of equipment is absolutely prohibited. Use the specified parts at all times.
• If any modification is performed, the validity of the manufacturer’s warranty is lost at that
moment. The personnel who did this modification is responsible for the physical injury or
the like, if it should occur as a result of the modification. The parts used are given the
safety-based characteristics, such as non-flammability or sufficient withstand voltage. The
parts to be replaced shall be those which are specified in the list of replacement
parts.(Example: The lithium battery (circuit symbol BA9501 in the MAIN PWB) will give
rise to explosion if its polarity is wrongly treated.
WARNING
given in the
• The replaced parts and wiring must be arranged in the original conditions.
• For safety reasons, insulation materials like tubes and tapes may be used or some parts
may be mounted clear of the PWB. The internal wiring and the fastening with the clampers
for separation from high-heat and high-voltage parts shall be returned to their original
conditions, without fail.
2-1
• For the maintenance servicing, safety inspection is needed in accordance with the check list.
• Inspection should be carried out according to the check list shown below, in regard to
safety inspection before and after repairing, authentic repair, and explanation to the user.
(Method of insulation check)
Mount a PDP module on the product to complete it. After the completion of aging and
others, pull out the power plug from the wall outlet, remove the cable, and turn on the
power switch. Use a 500V megger (Note 1) and confirm that the insulation resistance is
500MΩ or more between each terminal (except for the 3-core earth terminal) of the power
plug (Note 2) and the external exposed metallic parts (Note 3). If the insulation resistance
is found to be below the specified value, recover the faulty section and make another
insulation check again.
(Note 1) If a 500V megger is not available at that time, use a circuit tester or the like.
(Note 2) In the case of a 3-core terminal, the earth resistance shall be 1Ω or less between the earth
terminal and the earth side of each input terminal.
(Note 3) Head phone jack, speaker terminals, remote control terminals, each I/O terminals, control termi-
nals, screws, etc.
Check item Check column
Is there any influence by high temperatures (due to direct sunlight, etc.), moisture (steam, etc.), oil
fume, dust, and dew condensation?
Is the condition of ventilation acceptable (distance to the wall, ventilation holes, etc.)?
Is the condition of the antenna acceptable (reach to the wire, bend, tilt, etc.)?
conditions
Is the condition of power supply acceptable (regular outlet, adequate earthing, concentrated wiring, etc.)?
Installation
repairing
Safety inspection before
Authentic repair
Safety inspection after repairing
Explanation to the user
Is the condition of installation acceptable (unstability, height, tilt, falling preventive materials, etc.)?
Are the power plug and the power cord free from damage or the attachment of dust?
Is the product free from unusual sound, unusual odor, or unusually high temperature?
Are the knobs, handles, and back cabinet free from abnormality (rattling, drop off, etc)?
Product
Is equipment free from any abnormality in daily use?
main body
Is the symptom examined according to the user’s statement?
Is the product disassembled to the grade where troubleshooting is possible?
Is the symptom reproduced, the faulty part located as a result of fault diagnosis, and replaced?
Trouble-
shooting
Is the normal condition confirmed after aging?
Is the part, specified in the list of parts, used for the power unit?
Is the part, specified in the list of parts, used for the insulation material (material, thickness, etc)?
Is the part, specified in the list of parts, used for the power plug and the power cord?
Is the part, specified in the list of parts, used for the internal cabling and the high voltage lead wires?
Is the part, specified in the list of parts, used for the PDP module?
Specified parts
Are the rest of replaced parts those specified in the list of parts?
Is the part version correct?
Are the part mounting position, fixing method, and the distance the same as those of original?
Is the wiring layout the same as the original (connector, clamper, distance from a heat generating part, etc)?
Is the soldering condition acceptable (whisker, too much solder, tunnel, failure in winding, etc)?
Wires
mounted
Is the insulation material the same as the original (tubes, tapes, fiber, etc.)?
Are the repaired section and its peripheral parts free from abnormality?
Is there any intrusion of foreign substances (solder chips, wire chips, screw chips, screws, etc.)?
Is everything free from danger due to deterioration (discoloration, damage, leakage, etc.)?
Is the safety protection circuit in normal operation?
Are contamination and dust removed after final finish?
Is there any failure in mounting and tightening (back cabinet, falling preventive materials, etc.)?
Is there any influence by high temperatures (direct sunlight, stove, etc.), moisture (steam, etc.), oil fume,
dust, and dew condensation?
Is the condition of ventilation acceptable (distance to the wall, ventilation holes, etc.)?
Is the condition of the antenna acceptable (reach to the wire, bend, tilt, etc.)?
Is the condition of power supply acceptable (regular outlet, adequate earthing, concentrated wiring, etc.)?
Is the condition of installation acceptable (unstability, height, tilt, falling preventive materials, etc.)?
Is the insulation check finished with a circuit tester or the like? (Refer to the above description, “Method of
insulation check.”)
Are the contents and actual treatment of repairing and safety inspection services duly explained?
To use equipment after reading through the instruction manual.
Not to dislodge the back cabinet.
Not to insert anything in ventilation holes and clearances.
To pull out the power plug if the product is not used for a long time.
To ask an NEC’s authorized maintenance service company for the cleaning of the product interior
for the removal of dust.
To turn off the power switch when cleaning the panel surface and the cabinet.
Explanation of use
To turn off the power switch of the main unit for the product provided with a remote control, in case
of going out or sleeping.
Are explanations given to pull out the power plug in case of abnormality and to contact the dealer or an
NEC’s authorized maintenance service company.
2-2
CAUTION
• Observe the caution matter, without fail
• The caution matters of CAUTION given in the instruction manuals, etc., must be
observed, without fail.
• Do not give shocks and vibration.
• The panel surface (display plane) of the filter and the PDP module is made of glass. If any
shocks or vibration is applied, it may be broken and the scattered glass chips will be a
cause of injury.
• Do not put anything.
• Do not put anything on the product. Otherwise, this can be a cause of injury as a result of
falling down or dropping caused by imbalance.
• Transportation must be done by enough personnel.
• The product is heavy. In the case of transportation, unpacking, or packing, more than two
persons should do it (four persons for a product of 50-inch or larger) by supporting the top
and the bottom of the product.
■ Miscellaneous caution matters
(1) This product uses highly integrated semiconductor parts. Since these parts are fragile to electrostatic
charges, earth bands should be used for handling. The product should be handled where measures have
been taken against electrostatic charges.
(2) For this product, the PDP modules and the PWBs are repaired by replacement in a unit. Therefore, the
units of the PDP modules and the PWBs must not be repaired or disassembled. Otherwise, the validity of
warranty will be lost.
(3) If this product is used for the fixed character display or the like as in the case of a character display board,
a phenomenon of burning (not warranted) will occur. Burning is a phenomenon that the unevenness in the
brightness is caused in the display. In such a case, the brightness in the section where the integrated
display time is longer becomes lower than the brightness in another section where the integrated display
time is shorter. This phenomenon is in proportion to the integrated display time and the brightness. For this
reason, to relieve this difficulty during servicing, do not use any still picture, but use a display by motion
pictures of a video or the like. In addition, use “FULL” for the screen mode and avoid using any display by
“NORMAL”, “TRUE”, or MULTI SCREEN like side by side etc. If it is necessary to use only a still picture for
unavoidable reasons, use a burning relief function such as “PLE LOCK”, “ORBITER”, “SCREEN WIPER”,
etc.
(4) When a PDP module is operated after a long time of storage, it may encounter a difficulty like a failure in
displaying a screen or unstability according to the condition of storage. In such a case, the PDP module
should be incorporated in the product and aging treatment should be carried out for about two hours (all
screen display).
(5) Sulfides will deteriorate the PDP module and this is a cause of malfunction. Therefore, it is absolutely
prohibited to put any vulcanized rubber or a material containing sulfur in the vicinity of the PDP module.
(6) When taking out a PDP module from the maintenance package box, do it slowly so that the panel surface
2-3
does not get any shock or stress.
(7) If one touches the connector of the flexible cable exposed to the rear side of the PDP module, there is
danger of causing a poor contact. As such, it must be handled with utmost care. In addition, the flexible
cable is very weak in mechanical strength. Therefore, this cable must not be touched during handling.
(8) The panel surface of the filter and the PDP module is easy to be hurt. These components should be
handled very carefully not to press or rub them with a hard thing. Never put them on a hard thing with the
panel surface faced downwards.
(9) When the panel surface of the PDP module is contaminated, gently wipe off the contaminant with a piece
of soft dry cloth. Liquid-state contamination can be removed by lightly pressing it, without rubbing it. If it is
difficult to remove the contamination, use a piece of cloth soaked with a neutral detergent. The cloth for
wiping off should be clean. Never use the same cloth repeatedly. If a cleansing detergent or water drops
should enter the module interior or be attached to the module surface other than the display plane at the
time of cleaning, this will give rise to the destruction of the product when the product is energized.
(10) Refer to the “Instruction Manual” in regard to contamination in the filter and the cabinet.
(11) When transporting this product, use the packing materials specified in the list of parts. Once used, such
packing materials should not be used again.
(12) This product is composed of a variety of parts, such as those made of materials like glass, metal, plastics,
etc., and those like a lithium battery (circuit symbol of the MAIN PWB: BA9501), etc. Therefore, when
abandoning this product, this should be done in accordance with the relevant law of the nation or an
autonomous body.
2-4
TROUBLESHOOTING
• Problems in the power supply, such as “Failure in Power ON” or “LED flashing or lighting (alarm display)”
→ 1. Go to Power failure (P3-2).
• Problems in the images, such as “No pictures available”
→ 2. Go to Image errors (P3-8).
• “No output from the video loop out”
→ Fault in the MAIN PWB
• Problems in the audio system, such as “No audio output”
→ 3. Go to Audio errors (P3-15).
• “Remote control not effective”
→ 4. Go to Remote control not effective (P3-16).
3-1
1. Power failure
(1) The power supply is not turned on.
Move the main power setting for
OFF→ ON.
Is the POWER/STANDBY lamp lit?
YES
(2) Flashing in green (Alarm of
temperature sensor error or fan
error) Go to (P4-3).
(3) Flashing in red (Alarm of tem-
perature error) Go to (P4-5).
(4) Reciprocal flashing in red and
green (Alarm of panel error) Go
to (P4-6).
(5) Lighting in green, and then in
red (Alarm of power line error)
Go to (P4-8).
NO
(Caution)If any abnormality is sensed in such a manner that the
LED flashes or lights, all the power lines other than those
of 7Vdc (M+7V) and 5Vdc (M+5V) are automatically
turned off in about 10 seconds. When checking the power
lines other than those of M+7V and M+5V, a circuit tester
or the like should have been connected in advance.
Is the AC power output
available at the AC connector (power cord)?
YES
Is a 6.8Vdc output available
at Pin 1 of the PM connector?
YES
Is a 6.8Vdc output available
at Pin 1 of the PW connector?
NO
NO
NO
The power cord is defective.
Is a 6.8Vdc output available in
the state that the LD connector is disconnected and the
main power is turned ON?
YES
NO
Is a 6.8Vdc output available in
the state that the PW connector is disconnected and the
main power is turned ON?
The LD connector or the
LED PWB is
fault.
Is a 5Vdc output available in the state
that the LD connector is disconnected
and the main power is turned ON?
YES
NO
Is a 5Vdc output available in the state
that the RS connector is disconnected
and the main power is turned ON?
YES
NO
The PW connector, PWR PWB or the
MAIN PWB is fault.
The LD connector or the
LED PWB is
fault.
The RS connector or the
232C PWB is
fault.
The PW con-
YES
Is a 6.8Vdc output available
at Pin 6 of the PM connector?
NO
YES
Is a 4.9Vdc output available
at Pin 3 of the PM connector?
NO
Is a 5Vdc output available
at Pin 4 of the PW connector?
NO
YES
nector or the
PWR PWB is
fault.
The PM connector or the
MAIN PWB is
fault.
YES
YES
NO
Is a 6.8Vdc output available in
the state that the PM connector is disconnected and the
main power is turned ON?
NO
The power unit is fault.
YES
The PW connector or the
PWR PWB is
fault.
The PM connector or the
MAIN PWB is
fault.
The MAIN PWB is fault.
3-2
(2) Blinking in green
1
Alarm of temperature sensor error.
Blinking in green (intervals of 2
seconds)
Turn off the main power supply.
Pressing the [MENU] key of the
product, turn on the main power
supply to cancel alarming.
FAN SET
Press the remote control keys in the sequential order of [MENU] [MUTE] [EXIT] [SLEEP]
[EXIT] and enter the diagnostics
menu. Press the [MENU/ENTER] key to
display the FAN SET menu (P8/10).
Is there a display of numerals (almost room temperatures) at the
right side of [T1, T2, T3]?
YES
The MAIN PWB is fault.
NO
Is there a display of [-] for all the
numerals at the right side of [T1,
T2, T3]?
NO
When a [-] display is presented, the PWB with the symbol shown below is
fault. T1: SEND PWB, T2: SENB PWB, T3: SENC PWB
YES
Are there a 5Vdc output
at Pin 3 and a clock signal (5Vpp) at Pins
1
and 2 of the TS in the
state that the TS connector is disconnected
and the main power
supply is turned on?
NO
Are there a 5Vdc output
at Pin 3 and a clock
signal (5Vpp) at Pins
and 2 of the TR in the
state that the TR connector is disconnected
and the main power
supply is turned on?
1
FAN SET
FAN MODE H CONT ENA
FAN OFF/L CONT UP
FAN L/M CONT TIME
FAN M/H UP STEP
SF SAVE
PLE SAVE 070 READ TIME
T ALM 095
RET TME
PLE TIME
T1T3030
030
IC ERROR
[MENU/ENTER] NEXT [EXIT] PREV 8/10
T2
T4
–
–
–
075
DOWN STEP
TEMP LEVEL
030
001
025
–
–
MODE 2
Are there a 5Vdc output
NO
at Pin 3 and a clock signal (5Vpp) at Pins
and 2 of the TM in the
state that the TM connector is disconnected
and the main power
supply is turned on?
1
–
–
–
2
2
60
1
NO
The MAIN PWB is
fault.
YES
The TS connector or the
SENC PWB is fault.
YES
The TR connector or the
SEND PWB is fault.
YES
The TM connector or
the SENB PWB is fault.
3-3
2
Alarm of fan error (PD-6130 Series)
Blinking in green (intervals of 0.5
seconds)
Turn off the main power supply.
Pressing the [MENU] key of the
product, turn on the main power
supply to cancel alarming.
Is the fan running?
(Caution) When alarming is can-
celed, [FAN MODE] of
FAN SET (P8/10) in the
factory adjustment
menu automatically
moves from [ENA] to
[H], thus causing the
fan to run.
FAN SET
FAN MODE ENA CONT ENA
FAN OFF/L CONT UP
FAN L/M CONT TIME
FAN M/H UP STEP
FAN SAVE 075 DOWN STEP
PLE SAVE 070 READ TIME
T ALM 095 TEMP LEVEL
RET TME 030
PLE TIME 001
T1 030 T2
T3 030 MODE 2
IC ERROR
[MENU/ENTER] NEXT [EXIT] PREV 8/10
FAN MODE H
FAN OFF/L
FAN L/M
FAN M/H
FAN SAVE 075
PLE SAVE 070
T ALM 095
RET TME 030
PLE TIME 001
T1 030 T2
T3 030 MODE 2
IC ERROR
[MENU/ENTER] NEXT [EXIT] PREV 8/10
T4
T4
–
–
–
025
–
–
FAN SET
–
–
–
025
–
–
CONT ENA
CONT UP
CONT TIME
UP STEP
DOWN STEP
READ TIME
TEMP LEVEL
–
–
–
2
2
60
1
–
–
–
2
2
60
1
YES
NO
Is there a 9.3Vdc output at Pin
1
of the FA and FB, FC connectors?
YES
NO
Is there a 9.3Vdc output in the
state that the FA connector is disconnected and the main power
supply is turned on?
YES
NO
Is there a 5Vdc output at Pin
3
of the FA and FB, FC connectors?
The MAIN PWB is fault.
The FAN-A/FAN-B/FAN-C is fault.
Is there a 9.3Vdc output in the
state that the FB connector is disconnected and the main power
supply is turned on?
NO
YES
YES
YES
The fan is out of order on the
side where a 5Vdc output is
generated.
NO
(Caution)The FAN-C and FC con-
nectors are used only for
the PD-6130 Series.
Is there a 9.3Vdc output in the
state that the FC connector is disconnected and the main power
supply is turned on?
NO
The MAIN PWB is fault.
The FAN-A is fault.
The FAN-B is fault.
The FAN-C is fault.
(Caution)When repairing is finished, press the [s] key of POSITION/CONTROL at the remote control to return [H] of
FAN MODE to [ENA], without fail. When the main power supply is moved from OFF to ON, [ENA] is automatically recovered.
3-4
(3) Blinking in red (Alarm of temperature error)
Since the internal temperature is too high in the product, the temperature protector has been actuated. In such a
case, the following actions should be taken immediately:
1. Turn off the main power supply and pull out the power cord from the wall outlet.
2. Wait for about 60 minutes until the temperature in the main unit lowers.
3. Check whether the heat discharge port is covered with dust or the like. If yes, remove the clogging substance.
4. If the unit is used where the ambient temperature is high, it should be moved to an adequate place (air temperature
ranging from 5°C to 35°C).
3-5
(4) Alternation blinking in red and green (Alarm of PDP error)
(Caution)How to reset the alarming condition
Pressing the [Input Select] key of the product, turn on the main power supply of the main unit. In this state,
keep pressing the [Input Select] key for more than 2 seconds until alarming is canceled. Make confirmation
by the method specified below.
Blinking in red and green
Move the main power setting for
OFF → ON.
NO
Is there alternation blinking in red
and green?
YES
Normal
Turn OFF the main power supply.
With the [Menu] key of the product kept pressed, turn on the main
power supply to assume the [Voltage Check Mode].
Is there a 3.3Vdc output at Pin
94 of IC9501 in the MAIN PWB?
(See the PWB Layout Diagram
on P4-20.)
YES
Turn ON the main power supply
in the state that the AD, PD, and
PH connectors are disconnected.
In this state, are there the outputs
of Vs (170Vdc), Vd (60Vdc), and
5Vdc at the PD/PH connectors as
specified in the table at right? In
this case, however, no images are
generated.
(Caution)When the main power supply is turned on with the [Menu]
key of the product kept pressed, it takes 30 seconds more
to assume the state of [blinking in red and green]. In this
time period, the following voltage checks should be carried
out.
If the state of [blinking in red and green] is assumed during
this checking, take actions of [Alarm Canceling] and [Voltage Check Mode Setup] again.
NO
The MAIN PWB is fault.
NO
The Power unit is fault.
(Caution)The voltage values of Vd and Vs and also the connector
pin numbers can differ according to the PDP. The method
of checking these voltage values is obtainable from [2.
Adjustment of the power unit] in the method of adjustment
plus the table specified below.
YES
The PDP is fault.
Vs Vd GND 5Vdc GND
PD-6130 PD-9pin PD-7pin PD-5pin PD-4pin PD-5pin
PH-1pin PH-4pin PH-5pin PH-7pin PH-5pin
3-6
(5) Lighting in green, and then in red (Alarm of power voltage error)
Unlike [lighting in red] in the STANDBY mode, [lighting in green] continues for about 30 seconds without any output of
images and audio signals. Since then, the mode turns into [lighting in red].
Lighting in red
Make an OFF → ON setting twice
for the main power supply in order to reset the alarming condition.
NO
Is the LED lit in red after it has been
lit in green for about 30 seconds?
YES
When the main power supply is turned on in the state
that the AD, PD, and PH connectors are disconnected, are there the Vs (170Vdc) and Vd (60Vdc)
outputs at Pins 6-7 to Pins 9-0 of the PD connector and a 5Vdc output at Pins 1-2 of the PH
connector? In this case, is the LED not turned in red
after it has been lit in green for about 30 seconds?
At that time, however, no images are generated.
(Caution)How to reset the alarming condition
The alarming condition can be reset when an OFF→
ON setting is repeated twice for the main power
supply in the state that the LED is lit in red. The
interval between the first and second settings is not
particularly specified.
Normal
YES
The PDP is fault.
(Caution)The voltage values of Vd and Vs can
differ according to the PDP. The method
of checking these voltage values is obtainable from [2. Adjustment of the
power unit] in the method of adjustment.
NO
When the main power supply is turned on in the
state that the PA and PV connectors are disconnected from one after another, is there a 12Vdc
output at Pins 1-3 of the PA connector or the
12Vdc and 6Vdc outputs at Pins 1 and 3-4of
the PV connector? In this case, is the LED not turned
in red after it has been lit in green for about 30 seconds?
NO
When the main power supply is turned on in the
state that the PA and PV connectors are returned
to their original conditions, are there a 3.3Vdc output at Pins 1-3 and a 2.5Vdc output at Pins 7-
9
of the PN connector?
YES
Is there a 3.3Vdc output at Pin 96 of IC9501 in the
MAIN PWB? (Refer to the PWB layout diagram on
Page P4-19 or 20.)
YES
The MAIN PWB or the AUDIO
PWB is fault.
NO
The Power unit or the PN connector is fault.
NO
The MAIN PWB is fault.
YES
The Power unit is fault.
3-7
2. Image errors
A
Dot errors change
with no continuity.
All-white signal
All-white signal
All-white signal
No signal
(Caution) Typical abnormal images are shown below. All errors do not always fall on these error samples.
(1) Image burn and deterioration in brightness
Residual images are seen without signal entry.
This is not a fault.
Deterioration in brightness
This is not a fault.
(2) Failure in writing
Failure in writing
The PDP is fault.
3-8
(3) Pixel defect
Pixel defect
Are there many defective pixels exceeding the
pixel defect standard?
Bright defect
N
Y
The PDP is fault.
[Pixel defect standard for reference]
Displayed image
Black all over the screen
(Fig. 1)
Red level 100% over the screen
Green level 100% over the screen
Bright defect
Blue level 100% over the screen Each zone: dots or less for each uni-color
Red level 100% over the screen Zone A: dots or less vertically continuous
Green level 100% over the screen Zone B: dots or less continuous
Blue level 100% over the screen
White all over the screen
Dark defect
(Fig. 2)
This is not a problem.
Pixel defect standard
Non-continuous Continuous
Zone A: dots or less in all for each color
Zone B: dots or less in all for each color
Zone A: dots or less in all for each color
Zone B: dots or less in all for each color
Zone A: dots or less in all for each color
Zone B: dots or less in all for each color
–
(Fig. 1) All-Black Signal
Dark defect
(Fig. 2) All-White Signal
Continuous dots or less
Defective when dots or less are continuously horizontal and seen white.
Except for the continuous portions,
however, the distance between dark
dots shall be cm or more.
Zone A: dots continuous in one
portion or less ( dots for vertical continuity)
Zone B: dots or less continuous
Except for the continuous portions, however,
the distance between dark dots shall be
cm or more.
3-9
(Caution1) Zone A: Central part (the area surrounded by
the right and left sides by 1/4H) with
V
Zone B Zone B
ZoneA
the area that is 1/2 of the whole
Zone B: Area other than A above
(4) Wrong lighting
Wrong lighting
1/4H
H
3 dots continuous
→
3 dots continuous
→
4 dots continuous
→
1/4H
(Caution2) The continuous dots appearing in the slantwise
direction or in a cluster state shall be defined
as follows:
The PDP is fault.
All-black signal
Dot errors change
with no continuity.
All-black signal
3-10
(5) Dark images [Other than the deterioration in brightness as per (1) above]
The images are dark even with
an all-white input signal.
The PDP is fault.
All-white signal
(6) Defect in horizontal lines
Line defect
The PDP is fault.
All-white signal
All-white signal
3-11
All-white signal
Defect in the block unit
The PDP is fault.
All-white signal
(7) Defect in vertical lines
Defect in vertical lines
The PDP is fault.
All-white signal
All-white signal
3-12
All-white signal
Block defect
The PDP is fault.
All-white signal
All-white signal
3-13
All-white signal
All-white signal
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