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PLASMA TELEVISION
PDP-427XD
PDP-4270XD
PDP-427XA
PDP-4270XA
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
PDP-427XD
WYVIXK5
PDP-4270XD
WYVIXK5
WYVIXK5
PDP-427XA
WYV5
WYVIXK5
PDP-4270XA
WYV5
This service manual should be used together with the following manual(s).
Model No.
PDP-427XD, PDP-4270XD,
PDP-427XA, PDP-4270XA
For details, refer to "Important Check Points for good servicing".
PIONEER CORPORATION
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 2006
Power Requirement
AC 220 V to 240 V
AC 220 V to 240 V
AC 220 V to 240 V
AC 220 V to 240 V
AC 220 V to 240 V
AC 220 V to 240 V
Order No.
ARP3392
SCHEMATIC DIAGRAM, PCB CONNECTION DIAGRAM
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PDP-427XD
Remarks
T-IZR SEPT. 2006 printed in Japan
ORDER NO.
ARP3391
Remarks
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Table of Contents
Related Manuals for Pioneer PDP-427XA
Summarization of Contents
1. NOTES ON SERVICE VISIT
1.1 SAFETY INFORMATION
General safety precautions for qualified service technicians, including warnings about product content and safe handling.
SAFETY PRECAUTIONS
Precautions for safe servicing, component replacement, lead dress, and protective devices.
[Important Check Points for Good Servicing]
1. Product safety
Conformity to regulations, safe environment, and proper repair practices.
2. Adjustments
Procedures for optimum adjustments and characteristic confirmation.
3. Lubricants, Glues, and Replacement parts
Guidelines on using specified lubricants, adhesives, and replacement parts.
4. Cleaning
Proper cleaning procedures for specific parts to restore performance.
5. Shipping mode and Shipping screws
Procedures for setting shipping mode and installing shipping screws before shipment.
1.2 QUICK REFERENCE UPON SERVICE VISIT
Notes when visiting for service
Guidance on disassembly, reassembly, parts replacement, and settings.
How to locate several items on the Factory menu
Instructions on finding specific items within the Factory menu for various confirmations.
Confirmation of accumulated power-on time and power-on count
Procedure to confirm power-on time and count from the Information menu.
Confirmation of the Power-down and Shutdown histories
Procedure to check Power-down and Shutdown histories from the Panel Factory menu.
How to display the Mask indication
Steps to display mask indications on the panel or SG screen.
Adjustments and Settings after replacement of the Assys (Procedures in Factory mode)
1. Digital Video Assy: Transfer of backup data
Procedure to transfer backup data for the Digital Video Assy.
2. MAIN Assy : Switching to SR+ from RS-232C
Procedure to switch between SR+ and RS-232C communication modes for the MAIN Assy.
3. POWER SUPPLY Unit: Clearance of the accumulated power-on count and maximum temperature value
Procedure to clear power-on count and max temp data for the Power Supply Unit.
4. Other Assys: Clearance of the maximum temperature value
Procedure to clear maximum temperature value for other assemblies.
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING SECTION
Exploded view and parts list for the packing section of the product.
3. PCB PARTS LIST
7 LIST OF WHOLE PCB ASSEMBLIES
List of major PCB assemblies with part numbers for replacement.
4. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
4.1 OVERALL WIRING DIAGRAM (1/2)
Overall wiring diagram illustrating signal paths, part one.
5. DIAGNOSIS
5.1 TROUBLE SHOOTING
Flowchart for failure analysis of the entire unit, starting with STB status.
5.1.1 FLOWCHART OF FAILURE ANALYSIS FOR THE WHOLE UNIT
Step-by-step guide to diagnose failures based on symptoms and initial checks.
5.1.2 FLOWCHART OF FAILURE ANALYSIS FOR THE POWER SUPPLY UNIT
Flowchart to diagnose failures within the power supply unit.
5.1.3 FLOWCHART OF FAILURE ANALYSIS FOR THE DIGITAL ASSY
Flowchart to diagnose failures in the DIGITAL Assy, focusing on sync signals.
5.1.4 FLOWCHART OF FAILURE ANALYSIS FOR THE DRIVE ASSY
Flowchart to diagnose failures in X/Y DRIVE Assys, FFCs, and input signals.
5.1.5 FLOWCHART OF FAILURE ANALYSIS FOR THE MAIN ASSY
Flowchart to diagnose failures in the MAIN Assy related to STB LED, connectors, and power.
5.1.6 FLOWCHART OF FAILURE ANALYSIS FOR THE VIDEO SYSTEM
Flowchart to diagnose issues with video signal display for various inputs.
5.1.7 FLOWCHART OF FAILURE ANALYSIS FOR THE AUDIO SYSTEM
Flowchart to diagnose audio system issues, checking speakers, muting, and IC outputs.
5.2 DIAGNOSIS OF PD (POWER-DOWN)
5.2.1 BLOCK DIAGRAM OF THE POWER-DOWN SIGNAL
Block diagram illustrating the power-down signal path and related components.
5.2.2 DIAGNOSIS OF THE PD (POWER-DOWN)
Table correlating LED flashing counts with potential failure causes.
5.3 DIAGNOSIS OF SD (SHUTDOWN)
5.3.1 BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL
Block diagram showing the shutdown signal path and related ICs.
5.3.2 SD (SHUTDOWN) DIAGNOSIS
Table detailing shutdown symptoms, OSD indications, and possible defective parts.
6. DISASSEMBLY
6.1 PCB LOCATION
Diagram showing the location of major PCBs within the unit.
6.2 DISASSEMBLY
1 Rear Case (427)
Step-by-step instructions for removing the rear case and its components.
2 Access to PCB Assys
Instructions for accessing various PCB assemblies like SIDE, X DRIVE, Y DRIVE, MAIN.
3 Terminal Panel B
Instructions for removing the Terminal Panel B.
4 Front Case Assy
Step-by-step instructions for removing the front case assembly.
5 Speaker Box Assy L and R
Instructions for removing the speaker boxes L and R assemblies.
6 Exchange of SCAN IC
Procedure for exchanging the SCAN IC on the drive assemblies.
7. ADJUSTMENT
7.1 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED
Identifies assemblies requiring adjustment after repair or replacement.
7.2 ADJUSTMENT REQUIRED WHEN PART IS REPLACED
Notes on replacing parts
Information on parts requiring whole-assembly replacement due to calibration needs.
7.3 BACKUP WHEN THE PANEL UNIT IS ADJUSTED
Outline
Explanation of adjustment data storage and backup procedures.
Backed up data
List of data items backed up, including voltage and counter values.
How to copy backup data
Steps for copying backup data using Factory menu or RS-232C commands.
7.4 HOW TO CLEAR HISTORY DATA
Clearance of various logs after the Assys are replaced
Table and procedures for clearing logs (Hour-meter, PD, SD, etc.) after Assy replacement.
7.5 ADJUSTMENT WHEN THE SERVICE PANEL ASSY IS REPLACED
Adjustments of Vofs voltage and Vyprst voltage
Procedure for adjusting Vofs and Vyprst voltages using RS-232C or Factory menu.
Clearing data on various histories of the Panel, such as those on the hour meter
Instructions to clear Panel histories like hour meter, PD, and SD logs.
8. SERVICE FACTORY MODE
8.1 OUTLINE OF THE SERVICE FACTORY
Overview of the Service Factory mode, including transition charts and operation.
8.1.1 SERVICE FACTORY MODE TRANSITION CHART
Diagram showing the flow between different modes in Service Factory.
8.1.2 HOW TO ENTER/EXIT SERVICE FACTORY MODE
Methods for entering and exiting Service Factory mode via remote control or RS-232C.
8.1.3 OPERATION OF SERVICE FACTORY MODE
Explanation of functions and user data handling within Service Factory mode.
8.2 FACTORY MENU
8.2.1 INFORMATION
Displays microcomputer versions, serial numbers, and status of memories.
8.2.1.1 VERSION (1)
Displays software versions of each microcomputer in the common part.
8.2.1.2 VERSION (2)
Displays flash memory versions for digital tuner, teletext, and user password.
8.2.1.3 MAIN NG
MTB side's shutdown NG information and causes of shutdown.
8.2.1.4 TEMPERATURE
Displays present temperature and FAN rotation status.
8.2.1.5 HOUR METER
Displays panel hour meter, power on counter, and system serial.
8.2.1.6 HDMI SIGNAL INFO (1)
Displays input signal information for HDMI terminal, including video and audio data.
8.2.1.7 HDMI SIGNAL INFO (2)
Displays HDMI factory status and resolution correspondence for troubleshooting.
8.2.1.8 VDEC SIGNAL INFO
Displays input signal status of VDEC terminal and digital broadcast signals.
8.2.2 PANEL FACTORY
8.2.2.1 PANEL INFORMATION
Displays panel microcomputer version, serial number, and memory status.
8.2.2.2 PANEL WORKS
Displays operation data: pulse-meter, hour-meter, power-on count, and temperature.
8.2.2.3 POWER DOWN
Displays power-down history and OSD indications with causes.
8.2.2.4 SHUT DOWN
Displays shutdown history and OSD indications with causes.
8.2.2.5 PANEL-1 ADJ (+)
Settings for driving pulse timing and driving voltage.
8.2.2.6 PANEL-2 ADJ (+)
White balance and ABL (power consumption) adjustment for the panel.
8.2.2.7 PANEL REVISE (+)
Setting for panel degradation correction.
8.2.2.8 ETC. (+)
Clears backup data and various panel operational information.
8.2.2.9 RASTER MASK SETUP (+)
Sets RASTER MASK and drive sequence for RASTER MASK state.
8.2.2.10 PATTEN MASK SETUP (+)
Sets PATTEN MASK and drive sequence for PATTEN MASK state.
8.2.2.11 COMBI MASK SETUP (+)
Sets COMBI MASK and drive sequence for COMBI MASK state.
8.2.4 INITIALIZE
8.2.4.1 SYNC DET (+)
Sync detection function, details omitted.
8.2.4.2 SG MODE
Controls SG route and pattern selection for signal generation.
8.2.4.3 SG PATTERN
Sets SG Pattern (Brightness IRE Level/Color) for various test signals.
8.2.4.4 SIDE MASK LEVEL (+)
Adjusts Side Mask R, G, B levels.
8.2.4.5 FINAL SETUP
Resets memory values to factory default settings.
8.2.4.6 CVT AUTO
Exclusively used for technical analysis.
8.2.4.7 HDMI INTR POSITION (+)
Exclusively used for technical analysis.
9. RS-232C
9.1 OUTLINE OF RS-232C COMMAND
Overview of RS-232C commands, including prepared tools and usage.
9.1.1 PREPARED TOOLS
List of necessary tools for RS-232C communication: PC, software, cable.
9.1.2 USING RS-232C COMMANDS
Instructions on switching to SR+ system and using RS-232C commands.
9.1.3 COMMAND PROTOCOL
Details of RS-232C communication protocol: start bits, data width, parity, baud rate.
9.1.4 COMMAND DEFINITION
Defines the structure and function of various RS-232C commands.
9.3 OUTLINE OF EACH COMMANDS
9.3.1 ACQUISITION OF PANEL STATUS • • • [QS1]
Acquires panel status data, including resolution, generation, and system type.
9.3.2 ACQUISITION OF PANEL OPERATION DATA • • • [QS2]
Acquires panel operational data like mode shifts, adjustment flags, and hour meter.
9.3.3 ACQUISITION OF OTHER DATA ON THE PANEL • • • [QIP]
Acquires other panel data such as serial number, temperature, and CS.
9.3.4 ACQUISITION OF PANEL ADJUSTMENT DATA (COMMON DATA) • • • [QAJ]
Acquires common panel adjustment data like voltage and REVISE settings.
9.3.5 ACQUISITION OF ABL/WB ADJUSTMENT DATA • • • [QPW]
Acquires ABL/WB adjustment data, including drive sequence and gamma settings.
9.3.6 ACQUISITION OF PULSE METER VALUE • • • [QPM]
Acquires the accumulated number of pulses for the panel.
9.3.7 ACQUISITION OF PD LOGS • • • [QPD]
Acquires data from the 8 latest power-down (PD) logs.
9.3.8 ACQUISITION OF SD LOGS • • • [QSD]
Acquires data from the 8 latest shutdown (SD) logs.
9.3.9 QS6
Induces peculiar, individual information acquisition.
9.3.10 QMT
Retrieves temperature and FAN rotation status from the MTB side.
9.3.11 QNG
Acquires MTB/MB side's shutdown information.
9.3.12 DRV
Controls ON/OFF for the large-power system.
9.3.13 OTHER COMMANDS
Additional commands for factory mode control and data backup.
10. GENERAL INFORMATION
10.1 POWER ON SEQUENCE
Diagram illustrating the power-on sequence involving microcomputers and relays.
10.6 PROCESSING IN ABNORMALITY
Speaker short-circuit
Circuit diagram and port monitoring specs for speaker short-circuit detection.
Power supply and DC-DC converter
Circuit diagram and port monitoring specs for power supply and DC-DC converter abnormalities.
11. SPECIFICATIONS
11.1 SPECIFICATIONS
Technical specifications including pixels, power, dimensions, weight, and terminals.
11.2 ACCESSORIES
List and illustrations of included accessories like remote control, cables, and cleaning cloth.
11.3 PANEL FACILITIES
Front, side, and rear views of the unit, indicating buttons and terminals.
11.3.2 PDP-427XA, PDP-4270XA
• Front / Rear (PDP-427XA)
Front, side, and rear views of the PDP-427XA/4270XA, indicating buttons and terminals.
12. IC INFORMATION
• List of IC
List of ICs used in the unit, including their part numbers and associated assemblies.
SN755870KPZT (42 SCAN A ASSY: IC2701 to IC2706)
Pin arrangement and block diagram for SN755870KPZT IC.
SN755870KPZT (42 SCAN B ASSY: IC2801 to IC2806)
Pin arrangement and block diagram for SN755870KPZT IC.
• Plasma Display Panel IC
Information about the IC used for the Plasma Display Panel.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the ICs.
Block Diagram
Block diagram illustrating the internal functions of the ICs.
• UPD64015AGM-UEU (MAIN ASSY: IC5101)
Information about the UPD64015AGM IC, the video decoder for the main screen.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the UPD64015AGM IC.
Block Diagram
Block diagram of the 16M/64Mbit SDRAM, showing its internal components and connections.
2.1 Power supply/ground terminal
Details of power supply and ground terminals for various ICs.
2.2 System reset terminal
Details of the system reset terminal (RSTB).
2.3 I2C bus interface terminal
Pin functions for I2C bus interface terminals (SCL, SDA, SLA0).
2.4 Terminal for test
Pin functions for test terminals (SCKSET, TEST, FCKM, BCKM, ATS, VLPF).
2.5 Clock generator terminal
Pin functions for clock generator terminals (XI, XO, BCLK8).
2.6 Terminal for µPD64031A and µPD64032 digital connection
Pin functions for digital connection terminals of µPD64031A and µPD64032.
2.7 Terminal for RGB input
Pin functions for RGB input terminals (DFBI, DYSI, DYMI, DCGI, DCBI, DCRI, FCSI).
2.8 ADC1 section terminal
Pin functions for ADC1 section terminals (AVI, ASYI, ACYI, ACSI, VCLY, VCOM1, VRB1, VRT1).
2.9 ADC2 section terminal
Pin functions for ADC2 section terminals (ASCI, AGI, VRT2, VRB2, VCOM2).
2.10 ACD3 section terminal
Pin functions for ACD3 section terminals (ACBI, ABI, VRT3, VRB3, VCOM3).
2.9 ACD4 section terminal
Pin functions for ACD4 section terminals (ACRI, ARI, VCOM4, VRB4, VRT4).
2.12 DAC section terminal
Pin functions for DAC section terminals (IO-YG, IO-CR, IO-CB, REF, RSET).
2.13 Digital image input/output terminal
Pin functions for digital image input/output terminals (FDIO0-FDIO9, ROCK, ROY0-ROY13, ROFDIE).
2.14 timing output terminal
Pin functions for timing output terminals (HD, VD, VBLK, FILD, RDEO).
2.15 Memory interface terminal
Pin functions for memory interface terminals (SDRABP, SDRCLK, SDRCKE, SDRCS, SDRCAS, SDRRAS, SDRWE, SDRA0-SDRA11, SDRDQ0-SDRDQ15).
• AD9985KSTZ-110 (MAIN ASSY: IC5301)
Information about the AD9985 IC, an Analog-to-Digital Converter.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the AD9985 IC.
Block Diagram
Block diagram of the AD9985 IC, showing its internal ADC and processing blocks.
Pin Function
Detailed pin functions for the AD9985 IC, covering inputs, outputs, references, and power.
Pin Function
Detailed pin functions for the AD9985 IC, covering sync outputs, serial port, and data outputs.
Pin Function
Detailed pin functions for the AD9985 IC, covering sync inputs, clamp, coast, and power supply.
• SiI9023CTU (MAIN ASSY: IC5401)
Information about the SiI9023CTU IC, the HDMI Receiver.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the SiI9023CTU IC.
Block Diagram
Block diagram of the SiI9023CTU IC, showing HDMI receiver functions.
Pin Function
Detailed pin functions for the SiI9023CTU IC, covering inputs, outputs, and power.
Pin Function
Detailed pin functions for the SiI9023CTU IC, covering various logic and interface signals.
Pin Function
Detailed pin functions for the SiI9023CTU IC, covering data buses and control signals.
• LTC3414EFE (MAIN ASSY: IC4102)
Information about the LTC3414EFE IC, a regulator.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the LTC3414EFE IC.
• Block Diagram
Block diagram of the LTC3414EFE IC, illustrating its regulator functions.
• Regulator IC
Pin function details for the LTC3412EFE IC, a regulator.
• S1170B25UC-OTA (MAIN ASSY : IC4105)
Information about the S1170B25UC-OTA IC, a regulator.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the S1170B25UC-OTA IC.
• Block Diagram
Block diagram of the S1170B25UC-OTA IC.
• NJU26901E2 (MAIN ASSY : IC4704)
Information about the NJU26901E2 IC, an audio delay IC.
• Pin Arrangement (Top view)
Diagram showing the pin layout of the NJU26901E2 IC.
• Block Diagram
Block diagram of the NJU26901E2 IC, illustrating audio delay functions.
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