PIONEER PDP50MXE10 Service Manual

PIONEER PDP50MXE10 Service Manual
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Service Manual for PIONEER PDP50MXE10, downloadable as a PDF file.

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ORDER NO.

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 2005

ARP3327

T ZZY DEC. 2005 Printed in Japan

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model

Type

Power Requirement

Remarks

PDP-50MXE10

YVXK5

AC100 - 240V

PDP-50MXE10

PLASMA DISPLAY

¶ This service manual should be used together with the following manual(s):

Model No.

Order No.

Remarks

SAFETY INFORMATION, EXPLODED VIEWS AND PARTS LIST , BLOCK DIAGRAM,

PCB PARTS LIST, ADJUSTMENT, IC INFORMATION etc.

PDP-504CMX/LUC/1

ARP3241

CONTENTS

SAFETY INFORMATION ........................................................................... 2

1. CANCELING DETECTION BY THE TRAP SWITCH ............................. 5

2. CONTRAST OF MISCELLANEOUS PARTS ......................................... 6

3. SCHEMATIC DIAGRAM ........................................................................ 12

3.1 OVERALL WIRING DIAGRAM .........................................................12

4. PCB CONNECTION DIAGRAM ............................................................. 22

ORDER NO.

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 2005

ARP3327

T ZZY DEC. 2005 Printed in Japan

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model

Type

Power Requirement

Remarks

PDP-50MXE10

YVXK5

AC100 - 240V

PDP-50MXE10

PLASMA DISPLAY

¶ This service manual should be used together with the following manual(s):

Model No.

Order No.

Remarks

SAFETY INFORMATION, EXPLODED VIEWS AND PARTS LIST , BLOCK DIAGRAM,

PCB PARTS LIST, ADJUSTMENT, IC INFORMATION etc.

PDP-504CMX/LUC/1

ARP3241

CONTENTS

SAFETY INFORMATION ........................................................................... 2

1. CANCELING DETECTION BY THE TRAP SWITCH ............................. 5

2. CONTRAST OF MISCELLANEOUS PARTS ......................................... 6

3. SCHEMATIC DIAGRAM ........................................................................ 12

3.1 OVERALL WIRING DIAGRAM .........................................................12

4. PCB CONNECTION DIAGRAM ............................................................. 22

PDP-50MXE10

SAFETY INFORMATION

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

cause cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 - Proposition 65

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

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.

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.

· When the front case is removed, infrared ray is radiated and

may disturb reception of the remote control unit.

· 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.

PDP-50MXE10

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 0.3M

and a maximum resistor reading of 5M

. Any resistor value

below or above this range indicates an abnormality which

requires 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 0.5mA.

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.

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.

Leakage

current

tester

Reading should

not be above

0.5mA

Device

under

test

Test all

exposed metal

surfaces

Also test with

plug reversed

(Using AC adapter

plug as required)

Earth

ground

AC Leakage Test

PDP-50MXE10

Fig.1 Charged Section and High Voltage Generating Point (Rear view)

Charged Section

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

2. AC Inlet with Filter

3. Power Switch (S1)

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

High Voltage Generating Point

The places where voltage is 100 V or more besides the live parts

are described above. You must not touch them, since there is 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.

1. POWER SUPPLY Unit.....................................................(223V)

2. 50 X DRIVE Assy ...........................................(230V to 223V)

3. 50 Y DRIVE Assy ...........................................................(353V)

4. 50 SCAN A Assy ............................................................ (353V)

5. 50 SCAN B Assy ............................................................ (353V)

6. X CONNECTOR A Assy ................................ (230V to 223V)

7. X CONNECTOR B Assy ............................... (230V to 223V)

Discharge the VSUS voltage, as shown below:

[Method for discharging the VSUS voltage]

1. Set DRF_SW on the DIGITAL VIDEO Assy to ON (Drive

OFF status).

1, 2

2. Leave the switch at that position for about 20-30 seconds.

3. If the power is on, turn it off. Then return DRF_SW to the OFF

position.

Notes

1: You can also set the unit to "Drive OFF status" by sending the

"DRF" RS232C command from the PC.

2: DRF_SW can be switched whether the power is on or off.

3: Power-down will occur if DRF_SW is set to OFF while the

power is on. (See "7.1.5 POWER ON/OFF FUNCTION FOR

THE LARGE-SIGNAL SYSTEM".) ... Refer to Service

Manual order NO. "PDP-504CMX: ARP3241"

: Part is the High Voltage Generating Points

other than the Charged Section.

: Part is Charged Section.

AC Inlet with Filter

Power Cord

Power Switch

(S1)

50 SCAN B Assy

50 Y DRIVE Assy

50 SCAN A Assy

POWER SUPPLY Unit

50 X DRIVE Assy

X CONNECTOR B

Assy

X CONNECTOR A

Assy

PDP-50MXE10

1. CANCELING DETECTION BY THE TRAP SWITCH

Outline:

For video data transmission from the HDMI input to the plasma display, digital signals are used. Therefore, this unit adopts

the HDCP (High-bandwidth Digital Content Protection) system for copyright protection. This unit is also provided with a

detection switch (TRAP switch) that will prohibit the unit from being turned on again if the rear case of the unit is opened, in

order to prevent the panel technology from being leaked out.

Function: To deactivate the detection of the TRAP switch

Purposes: 1. During production of this unit, adjusting with the rear cover opened is possible.

2. During servicing or repairing, diagnoses of the assemblies are possible while the power is on.

Methods: For setting, use RS232C commands:

TSN: Ignore the monitoring of the switch

CTM: Clear the detection log of the switch

TSY: Reactivate monitoring of the switch

Notes:

· The TRAP switch is located on the chassis (see Fig.2 below).

· Once rear case opening is detected, send the TSN and CTM commands.

· Because the TSN command is not stored in memory, monitoring of the switch can be reactivated by turning the unit off then back on.

· The same setting is possible using the Factory menu.

· Canceling detection by the TRAP switch

¶ How to enter Factory mode using the remote control unit

Please refer to the technical documentation (Service knowhow).

¶ How to clear the detection log of the TRAP switch

In the INITIALIZE layer, hold the OSD key on the remote control unit pressed for at least 3 seconds.

¶ After a power-down, to cancel detection of the TRAP switch using only the remote control unit, follow the

procedures below.

First, fix the TRAP switch to its depressed position. Set the drive ON/OFF switch in the DIGITAL VIDEO Assy to OFF,

Then enter the Factory mode. Press the MUTE key five times, then hold the DISPLAY key pressed for at least 4 seconds. Set the AC

switch on the panel to OFF. The log is also cleared. Then set the drive ON/OFF switch to ON.

Fig.2 TRAP switch

TRAP switch

(S2)

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