Pioneer PDP-4280XA/XD, PDP-428XD Schematic
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2007
PDP-4280XA
For details, refer to "Important Check Points for good servicing".
PLASMA TELEVISION
PDP-4280XA
PDP-4280XD
PDP-428XD
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
PDP-4280XA WYV5 AC 220 V to 240 V
WYVIXK5 AC 220 V to 240 V
PDP-4280XD WYV5 AC 220 V to 240 V
WYVIXK5 AC 220 V to 240 V
PDP-428XD WYV5 AC 220 V to 240 V
WYVIXK5 AC 220 V to 240 V
ORDER NO.
ARP3441
T-IZS-002 JUNE 2007 Printed in Japan
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SAFETY INFORMATION
A
This service manual is intended for qualified service technicians ; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely,
you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to
B
cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
C
de remplacement doivent avoir la même désignation.
SAFETY PRECAUTIONS
NOTICE : Comply with all cautions and safety related notes
located on or inside the cabinet and on the chassis.
The following precautions should be observed :
1. When service is required, even though the PDP UNIT an
D
isolation transformer should be inserted between the power line
and the set in safety before any service is performed.
2. When replacing a chassis in the set, all the protective devices
must be put back in place, such as barriers, nonmetallic knobs,
adjustment and compartment covershields, isolation resistor capacitor, etc.
3. When service is required, observe the original lead dress. Extra
precaution should be taken to assure correct lead dress in the
high voltage circuitry area.
4. Always use the manufacture's replacement components.
Especially critical components as indicated on the circuit
diagram should not be replaced by other manufacture's.
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Furthermore where a short circuit has occurred, replace those
components that indicate evidence of overheating.
5. Before returning a serviced set to the customer, the service
technician must thoroughly test the unit to be certain that it is
completely safe to operate without danger of electrical shock,
and be sure that no protective device built into the set by the
manufacture has become defective, or inadvertently defeated
during servicing. Therefore, the following checks should be
performed for the continued protection of the customer and
servicetechnician.
6. Perform the following precautions against unwanted radiation
and rise in internal temperature.
• Always return the internal wiring to the original styling.
• Attach parts (Gascket, Ferrite Core, Ground, Rear Cover,
Shield Case etc.) surely after disassembly.
7. Perform the following precautions for the PDP panel.
• When the front case is removed, make sure nothing hits the
panel face, panel corner, and panel edge (so that the glass does
not break).
• Make sure that the panel vent does not break. (Check that the
cover is attached.)
• Handle the FPC connected to the panel carefully.
Twisting or pulling the FPC when connecting it to the
connector will cause it to peel off from the panel.
8. Pay attention to the following.
• Pay extreme caution when the front case and rear panel are
removed because this may cause a high risk of disturbance to
TVs and radios in the surrounding.
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Leakage Current Cold Check
With the AC plug removed from an AC power source, place a
jumper across the two plug prongs. Turn the AC power switch on.
Using an insulation tester (DC 500V), connect one lead to the
jumpered AC plug and touch the other lead to each exposed metal
part (input/output terminals, screwheads, metal overlays, control
shafts, etc.), particularly any exposed metal part having a return
path to the chassis. Exposed metal parts having a return path to
the chassis should have a minimum resistor reading of 4 MΩ.
The below 4 MΩ resistor value indicate an abnormality which
require corrective action. Exposed metal parts not having a return
path to the chassis will indicate an open circuit.
Leakage Current Hot Check
Plug the AC line cord directly into an AC power source (do not
use an isolation transformer for this check).
Turn the AC power switch on.
Using a "Leakage Current Tester (Simpson Model 229
equivalent)", measure for current from all exposed metal parts of
the cabinet (input/output terminals, screwheads, metal overlays,
control shaft, etc.), particularly any exposed metal part having a
return path to the chassis, to a known earth ground (water pipe,
conduit, etc.). Any current measured must not exceed 1 mA.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in PIONEER set have
special safety related characteristics. These are often not evident
from visual inspection nor the protection afforded by them
necessarily can be obtained by using replacement components
rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in this
Service Manual.
Electrical components having such features are identified by
marking with a > on the schematics and on the parts list in this
Service Manual.
The use of a substitute replacement component which dose not
have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in this
Service Manual, may create shock, fire or other hazards.
Product Safety is continuously under review and new instructions
are issued from time to time. For the latest information, always
consult the current PIONEER Service Manual. A subscription to,
or additional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.
A
B
C
Reading should
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Leakage
current
tester
not be above
1 mA
Earth
ground
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE SET TO THE CUSTOMER.
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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
B
C
D
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
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3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
5. Shipping mode and Shipping screws
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To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
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CONTENTS
SAFETY INFORMATION ......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS....................................................................................................................................................7
1.1 NOTES ON SOLDERING............................................................................................................................................... 7
1.2 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT ............................................................................ 8
2. SPECIFICATIONS.................................................................................................................................................................9
2.1 ACCESSORIES.............................................................................................................................................................. 9
2.2 SPECIFICATIONS ........................................................................................................................................................ 10
2.3 PANEL FACILITIES ...................................................................................................................................................... 13
3. BASIC ITEMS FOR SERVICE............................................................................................................................................ 22
3.1 CHECK POINTS AFTER SERVICING......................................................................................................................... 22
3.2 QUICK REFERENCE ................................................................................................................................................... 23
3.3 PCB LOCATION ........................................................................................................................................................... 25
3.4 CLEANING ................................................................................................................................................................... 26
4. BLOCK DIAGRAM .............................................................................................................................................................. 28
4.1 OVERALL WIRING DIAGRAM (1/2)............................................................................................................................. 28
4.2 OVERALL WIRING DIAGRAM (2/2)............................................................................................................................. 30
4.3 OVERALL BLOCK DIAGRAM (1/2).............................................................................................................................. 32
4.4 OVERALL BLOCK DIAGRAM (2/2).............................................................................................................................. 34
4.5 POWER SUPPLY UNIT ................................................................................................................................................ 36
4.6 42 X DRIVE ASSY........................................................................................................................................................ 37
4.7 42 Y DRIVE, 42 SCAN A and B ASSYS....................................................................................................................... 38
4.8 POWER SUPPLY BLOCK of 42 X, Y DRIVE and 42 SCAN A, B ASSYS ................................................................... 39
4.9 42 ADDRESS ASSY..................................................................................................................................................... 40
4.10 42 DIGITAL and SENSOR ASSYS............................................................................................................................. 41
4.11 POWER SUPPLY BLOCK of MULTI BASE SECTION ............................................................................................... 42
4.12 TANSHI ASSY ............................................................................................................................................................ 44
4.13 42/60LED and 42IR (42RLS&IR) ASSYS................................................................................................................... 45
4.14 POWER SUPPLY BLOCK of 42IR (42RLS&IR) and SIDE KEY ASSYS ...................................................................46
5. DIAGNOSIS ........................................................................................................................................................................ 47
5.1 POWER SUPPLY OPERATION ................................................................................................................................... 47
5.1.1 LED DISPLAY INFORMATION .............................................................................................................................. 47
5.1.2 POWER ON SEQUENCE...................................................................................................................................... 48
5.1.3 DETAILS OF POWER ON SEQUENCE ................................................................................................................ 49
5.2 DIAGNOSIS FLOWCHART OF FAILURE ANALYSIS.................................................................................................. 53
5.2.1 WHOLE UNIT......................................................................................................................................................... 53
5.2.2 POWER SUPPLY UNIT ......................................................................................................................................... 55
5.2.3 DRIVE ASSY.......................................................................................................................................................... 56
5.2.4 DIGITAL ASSY ....................................................................................................................................................... 60
5.2.5 MAIN ASSY............................................................................................................................................................ 61
5.2.6 VIDEO SYSTEM .................................................................................................................................................... 62
5.2.7 AUDIO SYSTEM .................................................................................................................................................... 69
5.3 DIAGNOSIS OF PD (POWER-DOWN) ........................................................................................................................ 72
5.3.1 BLOCK DIAGRAM OF THE POWER-DOWN SIGNAL.......................................................................................... 72
5.3.2 PD (POWER-DOWN) DIAGNOSIS OF FAILURE ANALYSIS ............................................................................... 73
5.4 DIAGNOSIS OF SD (SHUTDOWN) .............................................................................................................................76
5.4.1 BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL............................................................................................... 76
5.4.2 SD (SHUTDOWN) DIAGNOSIS............................................................................................................................. 77
5.5 NON-FAILURE INFORMATION.................................................................................................................................... 78
5.5.1 INFORMATION ON SYMPTOMS THAT DO NOT CONSTITUTE FAILURE ......................................................... 78
5.5.2 FUNCTION OF DECREASING THE BRIGHTNESS LEVEL................................................................................. 82
5.6 OUTLINE OF THE OPERATION................................................................................................................................ 83
.
5.6.1 PANEL DRIVE-POWER ON/OFF FUNCTION
5.6.2 SPECIFICATION OF THE FAN CONTROL ........................................................................................................... 84
5.6.3 PROCESSING IN ABNORMALITY........................................................................................................................ 85
...................................................................................................... 83
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6. SERVICE FACTORY MODE ...............................................................................................................................................88
6.1 OUTLINE OF THE SERVICE FACTORY MODE ..........................................................................................................88
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6.1.1 SERVICE FACTORY MODE TRANSITION CHART ..............................................................................................88
6.1.2 HOW TO ENTER/EXIT SERVICE FACTORY MODE ............................................................................................88
6.1.3 FUNCTIONS WHEN ENTERING THE SERVICE FACTORY MODE.....................................................................89
6.1.4 REMOTE CONTROL CODE IN SERVICE FACTORY MODE ...............................................................................90
6.1.5 PDP SERVICE REMOTE CONTROL.....................................................................................................................91
6.1.6 FACTORY HIERARCHICAL TABLE .......................................................................................................................92
6.1.7 INDICATIONS IN SERVICE FACTORY MODE......................................................................................................94
6.2 DETAILS OF FACTORY MENU....................................................................................................................................96
6.2.1 INFORMATION .......................................................................................................................................................96
6.2.2 PANEL FACTORY (+)...........................................................................................................................................104
6.2.3 OPTION................................................................................................................................................................ 114
6.2.4 INITIALIZE............................................................................................................................................................ 115
B
7. DISASSEMBLY .................................................................................................................................................................116
7.1 CHART OF REMOVAL ORDER FOR THE MAIN PARTS AND BOARDS ................................................................. 116
7.2 DISASSEMBLY ...........................................................................................................................................................117
8. EACH SETTING AND ADJUSTMENT ..............................................................................................................................123
8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED ........................................................123
8.2 BACKUP OF THE EEPROM (DIGITAL ASSY)...........................................................................................................125
8.3 HOW TO CLEAR HISTORY DATA .............................................................................................................................128
8.4 ADJUSTMENT WHEN THE SERVICE PANEL ASSY IS REPLACED .......................................................................129
8.5 ADJUSTMENT WHEN THE DRIVE ASSYS ARE REPLACED..................................................................................138
9. RS-232C............................................................................................................................................................................141
9.1 OUTLINE OF RS-232C COMMAND...........................................................................................................................141
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9.1.1 PREPARED TOOLS.............................................................................................................................................141
9.1.2 USING RS-232C COMMANDS............................................................................................................................141
9.2 LIST OF RS-232C COMMANDS ................................................................................................................................142
9.3 DETAILS OF EACH COMMANDS..............................................................................................................................149
9.3.1 QS1 (PANEL STATUS).........................................................................................................................................149
9.3.2 QS2 (PANEL OPERATION DATA)........................................................................................................................150
9.3.3 QS3 (OTHER DATA ON THE PANEL) .................................................................................................................151
9.3.4 QAJ (PANEL ADJUSTMENT DATA).....................................................................................................................152
9.3.5 QPW (VIDEO ADJUSTMENT DATA OF THE PANEL).........................................................................................153
9.3.6 QPM (PULSE METER VALUE) ............................................................................................................................153
9.3.7 QPD (PD LOGS) ..................................................................................................................................................154
9.3.8 QSD (SD LOGS) ..................................................................................................................................................155
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9.3.9 QSE (DESTINATION PECULIAR INFORMATION)..............................................................................................156
9.3.10 QMT (TEMPERATURE / FAN ROTATION / ROOM LIGHT SENSOR) ..............................................................156
9.3.11 QNG (SHUTDOWN INFORMATION OF MTB)...................................................................................................157
9.3.12 QSI (INPUT SIGNAL DATA)...............................................................................................................................159
9.3.13 DRV (PANEL DRIVE-POWER ON / OFF)..........................................................................................................159
9.3.14 FAY / FAN (ADJ. COMMANDS PERMISSION / PROHIBITION)........................................................................160
9.3.15 FAJ / UAJ / CBU / BCP (BACKUP FUNCTION FOR ADJUSTMENT VALUE)...................................................160
10. EXPLODED VIEWS AND PARTS LIST...........................................................................................................................162
10.1 PACKING SECTION .................................................................................................................................................162
10.2 REAR SECTION .......................................................................................................................................................164
10.3 FRONT SECTION.....................................................................................................................................................166
10.4 CHASSIS SECTION (1/2).........................................................................................................................................168
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10.5 CHASSIS SECTION (2/2).........................................................................................................................................170
10.6 PANEL CHASSIS SECTION.....................................................................................................
.7 MULTI BASE SECTION............................................................................................................................................172
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10.8 PDP SERVICE ASSY 428 ........................................................................................................................................176
10.9 TABLE TOP STAND (PDP-4280XA and PDP-4280XD ONLY).................................................................................178
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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 °C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 °C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
A
B
C
D
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1.2 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT
A
Charged Section
High Voltage Generating Point
The places where the commercial AC power is used without
passing through the power supply transformer.
If the places are touched, there is a risk of electric shock. In
addition, the measuring equipment can be damaged if it is
connected to the GND of the charged section and the GND of the
non-charged section while connecting the set directly to the
commercial AC power supply. Therefore, be sure to connect the
set via an insulated transformer and supply the current.
1. Power cord
B
2. AC inlet
3. Power switch
4. Fuse (In the POWER SUPPLY Unit)
5. STB transformer and Converter transformer
(In the POWER SUPPLY Unit)
6. Other primary side of the POWER SUPPLY Unit
C
: Part is Charged Section.
: Part is the High Voltage Generating Points
other than the Charged Section.
42 SCAN B Assy Conductive plate X42 Y DRIVE Assy 42 X DRIVE AssyPOWER SUPPLY Unit
The places where voltage is 100 V or more except for the charged
places described above. If the places are touched, there is a risk of
electric shock.
The VSUS voltage remains for several minutes after the power to
the unit is turned off. These places must not be touched until
about 10 minutes after the power is turned off, or it is confirmed
with a tester that there is no residual VSUS voltage.
If the procedures described in “5.6.1 PANEL DRIVE-POWER
ON/OFF FUNCTION ” are performed before the power is turned
off, the voltage will be discharged in about 30 seconds.
POWER SUPPLY Unit........................................................(200 V)
42 X DRIVE Assy................................................................(200 V)
42 Y DRIVE Assy................................................(-230 V to 500 V)
42 SCAN A Assy.................................................(-230 V to 500 V)
42 SCAN B Assy.................................................(-230 V to 500 V)
D
E
42 SCAN A Assy
F
AC inlet
Power switch
Fig. High Voltage Generating Point (Rear view)
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2. SPECIFICATIONS
2.1 ACCESSORIES
A
Remote control unit (PDP-4280XA)
(AXD1553)
Dry cell battery (R06, AA)
Binder Assy
(AEC1908)
Speed clamp: ×3 Bead band: ×3
Ferrite core (L5321)
(ATX1039)
Remote control unit (PDP-4280XD)
(AXD1552)
Band assy
(AXY1192)
Screw: ×2 Plastic band: ×2
PDP-4280XA, XD only
Remote control unit (PDP-428XD)
(AXD1551)
B
C
Ferrite core Cable tie
(for ferrite core)
Cleaning cloth (AED1285)
Warranty card
Operating instructions (PDP-4280XA)
(ARE1478: WYV5)
(ARE1477: WYVIXK5)
Power cord
(ADG1214)
Power cord
(ADG1223)
WYVIXK5 type only
Operating instructions (PDP-4280XD)
(ARE1485: WYV5)
(ARC1602: WYV5)
(ARE1476: WYVIXK5)
(ARC1587: WYVIXK5)
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Operating instructions (PDP-428XD)
(ARE1484: WYV5)
(ARC1601: WYV5)
(ARE1475: WYVIXK5)
(ARC1586: WYVIXK5)
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2.2 SPECIFICATIONS
A
PDP-4280XA
B
C
D
" Dimensions
E
1040
115
679
F
550
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Unit: mm
PDP-4280XA
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PDP-4280XD
220 V to 240 V AC, 50 Hz/60 Hz, 299 W (0.4 W
Standby)
Main unit: 29.6 kg (65.3 lbs.)
Stand: 1.7 kg (3.8 lbs.) (including bolts)
Total: 31.3 kg (69.0 lbs.)
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B
C
" Dimensions
679
1040
550
115
719
237
Unit: mm
PDP-4280XA
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PDP-428XD
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220 V to 240 V AC, 50 Hz/60 Hz, 299 W (0.4 W
Standby)
29.6 kg (65.3 lbs.)
C
D
E
" Dimensions
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12
511 0401
679
Unit: mm
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2.3 PANEL FACILITIES
PDP-4280XA
Front Section
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B
C
D
E
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PDP-4280XA
Rear Section
B
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D
E
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PDP-4280XA
Remote Control Unit
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B
C
D
E
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PDP-4280XD
Front Section
B
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D
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TIMER indicator
• The TIMER indicator lights up when one or more DTV
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programmes are preset for watching or recording.
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PDP-4280XD
Rear Section
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B
C
D
E
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PDP-4280XD
Remote Control Unit
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C
D
E
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PDP-428XD
Front Section
A
B
C
• The TIMER indicator lights up when one or more DTV
programmes are preset for watching or recording.
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E
F
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PDP-428XD
Rear Section
B
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PDP-428XD
Remote Control Unit
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B
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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
A
Items to be checked after repair (PDP)
To ensure the quality of the product after repair, check the recommended items shown below:
No. Procedures Item to be checked
Check if all the symptoms pointed out by the customer have been
1
addressed.
2 Connect the peripheral equipment.
3 Check the video and audio.
B
4 Check the buttons and controls.
5 Check the cabinet.
See the table below for the items to be checked regarding video and audio:
Item to be checked regarding video Item to be checked regarding audio
Block noise Distortion
Horizontal noise Noise
C
Dot noise Volume too low
Disturbed image (video jumpiness) Volume too high
Too dark Volume fluctuating
Too bright Sound interrupted
Mottled color
The symptoms in question must not be reproduced.
Connect all external peripheral equipment as originally connected
and check if the connections are correct.
Tune in to the stations that the customer would normally receive
and check if video and audio are normal.
Use the buttons and controls on the remote control unit and main
unit and check if they operate properly.
Check for any scratches or dirt that have been made or attached
on the cabinet after receiving the product for repair.
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3.2 QUICK REFERENCE
Quick Reference upon Service Visit 1
Notes, PD/SD diagnosis, and methods for various settings
Notes when visiting for service
1. Notes when disassembling/reassembling
1 Rear case
When reassembling the rear case, the screws must be tightened in a
specific order. Be careful not to tighten them in the wrong order forcibly.
For details, see "Rear Case" in "7. DISASSEMBLY".
2 Attaching screws for the HDMI connector
When attaching the HDMI connector after replacing the Main Assy,
secure the HDMI connector manually with a screwdriver, but not
with an electric screwdriver. If you tighten the screws too tightly
with an electric screwdriver, the screw heads may be damaged, in
which case the screws cannot be untightened/tightened any more.
2. On parts replacement
1 How to discharge before replacing the Assys
A charge of significant voltage remains in the Plasma Panel even
after the power is turned off. Safely discharge the panel before
replacement of parts, in either manner indicated below:
Let the panel sit at least for 3 minutes after the power is turned off.
A:
B: Turn the Large Signal System off before the power is turned off
then, after 1 minute, turn the power off.
For details, see "5.6.1 PANEL DRIVE-POWER ON/OFF
FUNCTION".
2 On the settings after replacement of the Assys
Some boards need settings made after replacement of the Assys.
For details, see "8. EACH SETTING AND ADJUSTMENT".
3. On various settings
1 Setting in Factory mode
After a Mask indication into the panel is performed, be sure to
set the Mask setting to "OFF" then exit Factory mode.
PD/SD
Item
SQ_LSI
Communication with the module IIC
DIGITAL-RST2
Panel high temperature
Panel section
Audio/
Short-circuit SP terminal
Communication with the Module UCOM
Main 3-wire serial communication
Main IIC communication
Communication with the Main UCOM
FAN
MTB section
Unit high temperature
Digital Tuner communication
MTB-RST2/RST4
Main EEPROM
POWER
SCAN
SCN-5V
Y-DRIVE
Y-DCDC
Y- S U S
ADRS
X-DRIVE
X-DCDC
X-SUS
DIG-DCDC
UNKNOWN
No. of LEDs
flashing
Red Blue
Blue 1
Blue 2
Blue 3
Blue 4
Blue 5
Blue 6
Blue 7
Blue 8
Blue 9
Blue 10
Blue 11
Blue 12
Blue 13
Blue 15
Red 2
Red 3
Red 4
Red 5
Red 6
Red 7
Red 8
Red 9
Red 10
Red 11
Red 12
Red 15
A
LED Display Information
Rewriting software
PD (2-15)
SD (1-15)
No backup
B
This indication does not display all
LED patterns.
For details, please refer to 5.1.1 LED
DISPLAY INFORMATION.
C
How to locate several items on the Factory menu
{ } : Item on the Factory menu
[ ] : Key on the remote control unit
" " : Screen indication
1. Confirmation of accumulated power-on time and power-on
count
Select {INFORMATION} then {HOUR METER}.
(After entering Factory mode, press
2. Confirmation of the Power-down and Shutdown histories
1 Panel system
PD: Select {PANEL FACTORY} then {POWER DOWN}.
(After entering Factory mode, press [MUTING] once, press
[ENTER/SET], then press
SD: Select {PANEL FACTORY} then {SHUT DOWN}.
(After entering Factory mode, press [MUTING] once, press
[ENTER/SET], then press
2 MTB section
Select {INFORMATION} then {MAIN NG}.
(After entering Factory mode, press
3. How to display the Mask indication
1 Mask indication in the panel side
1. Select {PANEL FACTORY} then {RASTER MASK SETUP}.
(After entering Factory mode, press [MUTING] once, press
[ENTER/SET], then press
2. Press [ENTER/SET], then select a Mask indication, using
[] five times.)
[] three times.)
[] four times.)
[] three times.)
[] 8 times.)
[] or [].
Adjustments and Settings after replacement of the
Assys (Procedures in Factory mode)
1. Digital Video Assy: Transfer of backup data
Select {PANEL FACTORY}, {ETC}, then {BACKUP DATA}. (After entering Factory
mode, press [MUTING] once, press [ENTER/SET], press [] seven times, then
press [ENTER/SET].)
Select {TRANSFER}, using [], then hold [ENTER/SET] pressed for at least 5
seconds.
After transfer of backup data is completed, {ETC} is automatically selected, and the
LED on the front panel returns to normal lighting.
2. MAIN Assy: Execution of FINAL SETUP.
Select {INITIALIZE} then {FINAL SETUP}, then press [ENTER/SET]. (After entering
Factory mode, press [MUTING] three times, then press [] four times.)
Select "YES", using []. Then hold [ENTER/SET] pressed for at least 5 seconds.
After "FINAL SETUP IS COMPLETE" is displayed on the screen, turn the POWER
switch of the main unit off.
3. POWER SUPPLY Unit: Clearance of the accumulated power-on count
and maximum temperature value
Select {PANEL FACTORY}, {ETC}, then {P COUNT INFO}. (After entering Factory
mode, press [MUTING] once, press [ENTER/SET], press [] seven times, press
[ENTER/SET], then press [] six times.)
Press [] to select "CLEAR". Hold [ENTER/SET] pressed for at least 5 seconds.
After clearance is completed, "ETC" is automatically selected. Clear the maximum
temperature value (MAX TEMP) in the same manner.
4. Other Assys: Clearance of the maximum temperature value
Select {PANEL FACTORY}, {ETC}, then {MAX TEMP}. (After entering Factory mode,
press [MUTING] once, press [ENTER/SET], press [] seven times, press
[ENTER/SET], then press [] seven times.)
Press [] to select "CLEAR". Hold [ENTER/SET] pressed for at least 5 seconds.
After clearance is completed, "ETC" is automatically selected.
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Quick Reference upon Service Visit 2
Mode transition and structure of layers in Service Factory mode
Mode transition in Service Factory mode
B
C
INFORMATION mode
1. VERSION (1)
2. VERSION (2)
3. MAIN NG
4. TEMPERATURE
5. HOUR METER
6. HDMI SIGNAL INFO1
7. HDMI SIGNAL INFO2
8. VDEC SIGNAL INFO1
9. VDEC SIGNAL INFO2
PANEL FACTORY mode
1. PANEL INFORMATION
2. PANEL WORKS
3. POWER DOWN
4. SHUT DOWN
5. PANEL-1 ADJ
6. PANEL-2 ADJ
7. PANEL FUNCTION
8. ETC.
9. RASTER MASK SETUP
10. PATTEN MASK SETUP
11. COMBI MASK SETUP
Up
Down
• To shift to another mode, press [MUTING].
• To shift to another item in a specific mode,
press [i] or [j].
• To shift to the next nested layer below for an
item with a "(+)" indication, press [ENTER/SET].
To return to the next nested layer above,
also press [ENTER/SET].
INITIALIZE mode
1. SIDE MASK LEVEL
2. FINAL SETUP
3. Wide XGA AUTO
OPTION mode
1. EDID WRITE MODE
2. CH PRESET
3. SYNC DET
Structure of Layers in Service Factory Mode
INFORMATION mode
1. VERSION (1) The software versions for each microcomputer
2. VERSION (2) The Flash memory versions for each device
3. MAIN NG The shutdown message ID/event times
(Going Clear mode by [ENTER/SET] key)
3-1. CLEAR
4. TEMPERATURE The temperature/FAN rotating status/Room light sensor
5. HOUR METER The HOUR METER/P-COUNT information
6. HDMI SIGNAL INFO 1 The information of HDMI information files
7. HDMI SIGNAL INFO 2 The information of HDMI information files
8. VDEC SIGNAL INFO 1 The signal information of VDEC
9. VDEC SIGNAL INFO 2 The signal information of VDEC
PANEL FACTORY mode Refer to [PANEL FACTORY MODE]
OPTION mode
1. EDID WRITE MODE For factory use
2. CH PRESET For production line use
3. SYNC DET For technical analysis
INITIALIZE mode
1. SIDE MASK LEVEL For factory use
1-1. SIDE MASK LEVEL
2. FINAL SETUP Set to Factory default settings (it should perform after
2-1. DATA RESET replacing a MAIN Assy)
3. Wide XGA AUTO For technical analysis
Select Yes by [l] key, l pressing and hold [ENTER/SET] key
Structure of Layers in Panel Factory Mode 1
1. PANEL INFORMATION Version indication of the panel
2. PANEL WORKS Indications of the accumulated power-on time, pulse-meter
D
count, and power-on count of the panel
3. POWER DOWN Indication of the Power-down history
4. SHUT DOWN Indication of the Shutdown history
5. PANEL-1 ADJ (+)
1. VOL SUS
2. VOL OFFSET
• • • • •
8. VOL YNOFS4
9. RESET1ST_KSB
10. RESET2ND_KSB
• • • • •
23. YSTL_FMR_HZ
24. SUS FREQ
E
6. PANEL-2 ADJ (+)
1. R-HIGH
2. G-HIGH
3 .B-HIGH Parameters for the WB adjustment of the panel, which are
4. R-LOW required during adjustment after panel replacement
5. G-LOW
6. B-LOW
7. ABL Setting of the power consumption. A setting table is
available for each vertical signal.
To "Structure of Layers in Panel Factory Mode 2"
F
Settings required after replacement of the panel
Modification not required because these items
are basically for factory presetting
For AM noise prevention (Depending on the mode,
brightness of the screen changes.)
For confirmation of the result of the setting change,
the unit must be turned off then back on again.
Structure of Layers in Panel Factory Mode 2
7. PANEL FUNCTION (+)
1. R-LEVEL
2. G-LEVEL
3. B-LEVEL
4. ADDRESS L1 Items for use by engineers
5. ADDRESS L2
• • • • •
11. ADDRESS U4
12. STK MODE
8. ETC (+)
1. BACKUP DATA For transferring backup data (after replacement of
the DIGITAL Assy)
2. DIGITAL EEPROM To clear data of the digital video
3. PD INFO.
4. SD INFO. For clearance of data for the corresponding items.
5. HR-MTR INFO. The clearing method is the same: Select "CLEAR",
6. PM/B1-B5 using [l], then hold [ENTER/SET] pressed for at
7. P COUNT INFO. least 5 seconds. After clearance is completed, {ETC}
8. MAX TEMP. is automatically selected.
9. RASTER MASK SETUP (+)
1. MASK OFF
2. RST MASK 01 For use while Raster Mask (full mask) is displayed.
• • • • • Use [i] or [j] to select the type of mask.
26. RST MASK 25
10. PATTEN MASK SETUP (+)
1. MASK OFF
2. PTN MASK 01 For use while Pattern Mask is displayed. Use [i] or
• • • • • [j] to select the type of mask.
50. PTN MASK 49
11. COMBI MASK SETUP (+)
1. MASK OFF
2. CMB MASK 01 For use while Combination Mask is displayed.
• • • • • Use [i] or [j] to select the type of mask.
18. CMB MASK 17
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3.3 PCB LOCATION
This photo. is PDP-4280XD model.
A
SENSOR Assy 42 DIGITAL Assy
POWER SUPPLY
Unit
42 SCAN B Assy42 SCAN A Assy SIDE KEY Assy
42 Y DRIVE Assy 42 X DRIVE Assy
MAIN Assy
42 ADDRESS
Assy
TANSHI Assy 232C Assy
42IR (42RLS&IR) Assy
Front view
42 ADDRESS
Assy
Rear view
42 ADDRESS
Assy
42 ADDRESS
Assy
Note:
The wiring shown in the photo is different from the actual wiring, because the product in the photo is a
prototype. Upon servicing, be sure to restore the original wiring of the unit after repair work.
B
SIDE IO AssyXGA POWER SW
C
Assy
D
42/60LED Assy
Front view
Mark No. Description Part No.
LIST OF ASSEMBLIES
NSP 42 ADDRESS ASSY AWV2451
NSP 42 SCAN A ASSY AWW1266
IC2801 - IC2806 SN755875PZT-P
NSP 42 SCAN B ASSY AWW1267
IC2901 - IC2906 SN755875PZT-P
42 X DRIVE ASSY AWV2452
42 Y DRIVE ASSY AWW1262
XGA POWER SW ASSY AWW1261
42 DIGITAL ASSY AWW1271
SENSOR ASSY AWW1272
> MAIN ASSY (PDP-4280XA) AWV2463
> MAIN ASSY (PDP-4280XD) AWV2462
> MAIN ASSY (PDP-428XD) AWV2461
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Mark No. Description Part No.
TANSHI ASSY (PDP-4280XA) AWW1251
TANSHI ASSY (PDP-4280XD) AWW1249
TANSHI ASSY (PDP-428XD) AWW1247
SIDE IO ASSY AWW1253
232C ASSY AWW1254
42/60LED ASSY AWW1276
42IR ASSY (PDP-4280XA, XD) AWW1282
42RLS&IR ASSY (PDP-428XD) AWW1277
SIDE KEY ASSY AWW1286
> POWER SUPPLY UNIT AXY1157
PDP SERVICE ASSY 428 AWU1276
PDP-4280XA
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3.4 CLEANING
A
Name Part No. Remarks
Cleaning liquid GEM1004
Cleaning paper GED-008
B
Used to fan cleaning.
Refer to “10.4 CHASSIS SECTION (1/2)”.
C
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4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM (1/2)
A
B
C
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When ordering service parts, be sure to refer to "EXPLODED
VIEWS and PARTS LIST" or "PCB PARTS LIST".
The mark found on some component parts indicates the
importance of the safety factor of the part. Therefore, when
replacing, be sure to use parts of identical designation.
B
C
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4.2 OVERALL WIRING DIAGRAM (2/2)
A
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