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Panasonic TH-37PX80B

Panasonic TH-37PX80B
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© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO.PCZ0802008CE
Plasma Television
Model No. TH-37PV80P
TH-37PX80B
TH-37PX80E
TH-42PV80P
TH-42PX80B
TH-42PX80E
GPH11DE Chassis

Table of Contents

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Panasonic TH-37PX80B Specifications

General IconGeneral
BrandPanasonic
ModelTH-37PX80B
CategoryPlasma TV
LanguageEnglish

Summary

1 Safety Precautions

1.1. General Guidelines

General guidelines for servicing, including lead dress, protective devices, and leakage current checks.

1.2. Touch-Current Check

Procedure for checking touch currents, including measuring network and voltage limits.

2 Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices

Techniques to reduce component damage from static electricity during handling and installation.

2.2. About lead free solder (PbF)

Information on lead-free solder composition, usage, and precautions for PCB assembly and service.

3 Service Navigation

3.1. Service Hint (42 inch)

Details on component board names and their functions for 42-inch models, including chassis removal.

3.2. Service Hint (37 inch)

Details on component board names and their functions for 37-inch models, including chassis removal.

3.3. Applicable signals

Lists applicable video signals for PC input, including horizontal and vertical frequencies.

4 Specifications

5 Service Mode

5.1. How to enter into Service Mode

Instructions on how to access the service mode using the main unit and remote control buttons.

5.1.1. Key command

Explanation of button commands used within the service mode for navigation and value adjustment.

5.1.2. Contents of adjustment mode

Lists the adjustable items within the service mode, showing sub-items, sample data, and remarks.

5.1.3. How to exit

Instructions on how to exit the service mode by powering off the unit or remote control.

5.2. Service tool mode

How to access and use the service tool mode for checking SOS history and power on time/count.

5.2.1. How to access

Steps to access the service tool mode from the main service mode.

5.2.2. Display of SOS History

Explanation of the SOS history indication and how it is cleared.

5.2.3. POWER ON TIMECOUNT

How to display and interpret power on time and count data.

5.2.4. Exit

Instructions on how to exit the service tool mode.

5.3. Hotel mode

Purpose, access command, and explanation of the hotel mode setup menu for restricting functions.

6 Troubleshooting Guide

6.1. Check of the IIC bus lines

Procedure to check IIC bus lines and screen display status for troubleshooting.

6.1.1. How to access

Steps to access the IIC bus line check through the self-check function.

6.1.2. Screen display

Example screen display for the IIC bus line check.

6.1.3. Check Point

Points to check if an NG (Not Good) status is displayed in the IIC bus check.

6.1.4. Exit

Instructions on how to exit the IIC bus line check.

6.2. Power LED Blinking timing chart

Chart detailing power LED blinking patterns and their corresponding error causes and related boards.

6.3. No Power

Troubleshooting guide for no power indication, outlining states and check points for P board or A board.

6.4. No Picture

Troubleshooting flowchart for no picture issues, guiding through checks for OSD, SC board, and SS board.

6.5. Local screen failure

Explanation of local screen failure on plasma display and possible defective PCBs indicated by Fig-1.

7 Disassembly and Assembly Instructions

7.1. Remove the rear cover

Instructions on how to remove the rear cover, referring to Service Hint section 3.

7.2. Remove the P-Board

Steps for removing the P-Board, including safety precautions for capacitor discharge.

7.3. Remove the rear terminal cover

Instructions for removing the rear terminal cover, detailing screw removal.

7.4. Remove the Tuner unit

Steps for removing the tuner unit, including cable and connector disconnection.

7.5. Remove the A-Board

Instructions for removing the A-Board, involving tuner unit removal and cover detachment.

7.6. Remove the SU-Board (42 inch)

Procedure for removing the SU-Board for 42-inch models, detailing flexible cable and screw removal.

7.7. Remove the SM-Board (37 inch)

Procedure for removing the SM-Board for 37-inch models, detailing flexible cable and screw removal.

7.8. Remove the SD-Board (42 inch)

Procedure for removing the SD-Board for 42-inch models, detailing flexible cable and screw removal.

7.9. Remove the SC-Board

Steps for removing the SC-Board, including disconnection of other boards and cables.

7.10. Remove the SS-Board

Procedure for removing the SS-Board, including cable clampers, connectors, flexible cables, and screws.

7.11. Remove the stand brackets

Instructions for removing the left and right stand brackets from the plasma panel.

7.12. Remove the C1-Board

Procedure for removing the C1-Board, involving tuner unit removal and flexible cable disconnection.

7.13. Remove the C2-Board

Procedure for removing the C2-Board, involving tuner unit removal and flexible cable disconnection.

7.14. Remove the front shield unit assy

Steps for removing the front shield unit assembly, including connector and screw removal.

7.15. Remove the G-Board and GS-Board

Procedure for removing the G-Board and GS-Board, involving front bracket and shield unit removal.

7.16. Remove the speaker L, R

Instructions for removing the left and right speakers, including connector and screw removal.

7.17. Remove the S-Board

Procedure for removing the S-Board, including stand bracket removal and connector disconnection.

7.18. Remove the K-Board

Steps for removing the K-Board, including S-Board removal and connector disconnection.

7.19. Remove the Plasma panel section from the Cabinet assy (glass)

Procedure for removing the plasma panel section from the cabinet assembly, including stand bracket and spacer removal.

7.20. Replace the plasma panel (finished)

Instructions for replacing the plasma panel, covering board attachment, cable connection, and fitting.

8 Measurements and Adjustments

8.1. Driver Set-up

Preparation steps for driver setup, including input signal and picture control settings.

8.1.1. Item Preparation

Items and preparation steps required for driver setup, including caution notes on adjustment order.

8.1.2. Adjustments

List of voltages to check or adjust with a multimeter, referring to panel data label.

8.1.3. P.C.B. (Printed Circuit Board) exchange

Cautions and quick adjustment procedures after exchanging Printed Circuit Boards.

8.1.3.1. Caution

Cautionary notes before removing PCBs, regarding capacitor discharge time.

8.1.3.2. Quick adjustment after P.C.B. exchange

Guidelines for quick adjustment after PCB exchange, including voltage checks and cautions.

8.1.4. Adjustment Volume Location

Diagram showing the location of adjustment volumes on the circuit boards.

8.1.5. Test Point Location

Diagram indicating the location of test points for voltage measurements on various boards.

9 Block Diagram

9.1. Block (1 of 7) Diagram

Detailed block diagram showing the interconnections of main functional blocks and components.

9.2. Block (2 of 7) Diagram (42 inch)

Block diagram illustrating the system architecture for 42-inch models, detailing power supply and board connections.

9.3. Block (3 of 7) Diagram (37 inch)

Block diagram illustrating the system architecture for 37-inch models, detailing power supply and board connections.

9.4. Block (4 of 7) Diagram

Block diagram detailing signal paths and connections for audio, video, PC, and HDMI interfaces.

9.5. Block (5 of 7) Diagram

Block diagram illustrating the interconnections of the main MCU, memory, and interface circuits.

9.6. Block (6 of 7) Diagram (42 inch)

Block diagram showing the connection between the main board, power supply, and plasma panel drivers.

9.7. Block (7 of 7) Diagram (37 inch)

Block diagram showing the connection between the main board, power supply, and plasma panel drivers for 37-inch models.

10 Wiring Connection Diagram

10.1. Caution statement.

Important caution regarding correct assembly and locking of flexible cables in connectors.

10.2. Wiring (42 inch)

Wiring diagrams and cable routing information for 42-inch models.

10.3. Wiring (37 inch)

Wiring diagrams and cable routing information for 37-inch models.

11 Schematic Diagram

11.1. Schematic Diagram Note

Notes and explanations for understanding schematic diagrams, including component identification and symbols.

11.2. P-Board (16) Schematic Diagram

Schematic diagram for the P-Board (part 1 of 6), showing connections for Europe and Asia models.

11.3. P-Board (26) Schematic Diagram

Schematic diagram for the P-Board (part 2 of 6), showing power control and board connections.

11.4. P-Board (36) Schematic Diagram

Schematic diagram for the P-Board (part 3 of 6), illustrating photo coupler and error detection circuits.

11.5. P-Board (46) Schematic Diagram

Schematic diagram for the P-Board (part 4 of 6), showing connections to SC-Board and SS-Board.

11.6. P-Board (56) Schematic Diagram

Schematic diagram for the P-Board (part 5 of 6), showing connections to power MCU and other circuits.

11.7. P-Board (66) Schematic Diagram

Schematic diagram for the P-Board (part 6 of 6), showing DC-DC converters and connections to A-Board.

11.8. G, GS, and K-Board Schematic Diagram

Schematic diagrams for G, GS, and K-Boards, illustrating their internal circuitry and connections.

11.9. A-Board (119) Schematic Diagram

Schematic diagram for the A-Board (part 1/19), showing IIC connections and tuner interface.

11.10. A-Board (219) Schematic Diagram

Schematic diagram for the A-Board (part 2/19), detailing DDR memory interface and connections.

11.11. A-Board (319) Schematic Diagram

Schematic diagram for the A-Board (part 3/19), showing various I/O ports and signal processing circuits.

11.12. A-Board (419) Schematic Diagram

Schematic diagram for the A-Board (part 4/19), illustrating connections for audio, HDMI, and tuner signals.

11.13. A-Board (519) Schematic Diagram

Schematic diagram for the A-Board (part 5/19), showing DC-DC converter circuits and power management.

11.14. A-Board (619) Schematic Diagram

Schematic diagram for the A-Board (part 6/19), detailing connections for various control signals and interfaces.

11.15. A-Board (719) Schematic Diagram

Schematic diagram for the A-Board (part 7/19), showing connections for display drivers and panel interface.

11.16. A-Board (819) Schematic Diagram

Schematic diagram for the A-Board (part 8/19), detailing connections for PC signals and external interfaces.

11.17. A-Board (919) Schematic Diagram

Schematic diagram for the A-Board (part 9/19), showing connections for JTAG interface and other control signals.

11.18. A-Board (1019) Schematic Diagram

Schematic diagram for the A-Board (part 10/19), illustrating audio output and input connections.

11.19. A-Board (1119) Schematic Diagram

Schematic diagram for the A-Board (part 11/19), showing connections for various input/output terminals and power management.

11.20. A-Board (1219) Schematic Diagram

Schematic diagram for the A-Board (part 12/19), illustrating DC-DC converters and power supply connections.

11.21. A-Board (1319) Schematic Diagram

Schematic diagram for the A-Board (part 13/19), showing connections for various control signals and interfaces.

11.22. A-Board (1419) Schematic Diagram

Schematic diagram for the A-Board (part 14/19), detailing connections for audio and PC signals.

11.23. A-Board (1519) Schematic Diagram

Schematic diagram for the A-Board (part 15/19), showing connections for display drivers and DDR memory interface.

11.24. A-Board (1619) Schematic Diagram

Schematic diagram for the A-Board (part 16/19), illustrating connections for display drivers and LVDS interface.

11.25. A-Board (1719) Schematic Diagram

Schematic diagram for the A-Board (part 17/19), showing connections for DDR memory interface and display drivers.

11.26. A-Board (1819) Schematic Diagram

Schematic diagram for the A-Board (part 18/19), detailing connections for audio and control signals.

11.27. A-Board (1919) Schematic Diagram

Schematic diagram for the A-Board (part 19/19), illustrating connections for display drivers and control logic.

11.28. C1-Board (12) Schematic Diagram (42 inch)

Schematic diagram for the C1-Board (part 1/2) for 42-inch models, showing driver and data connections.

11.29. C1-Board (22) Schematic Diagram (42 inch)

Schematic diagram for the C1-Board (part 2/2) for 42-inch models, showing driver and data connections.

11.30. C1-Board (12) Schematic Diagram (37 inch)

Schematic diagram for the C1-Board (part 1/2) for 37-inch models, showing driver and data connections.

11.31. C1-Board (22) Schematic Diagram (37 inch)

Schematic diagram for the C1-Board (part 2/2) for 37-inch models, showing driver and data connections.

11.32. C2-Board (12) Schematic Diagram (42 inch)

Schematic diagram for the C2-Board (part 1/2) for 42-inch models, showing driver and data connections.

11.33. C2-Board (22) Schematic Diagram (42 inch)

Schematic diagram for the C2-Board (part 2/2) for 42-inch models, showing driver and data connections.

11.34. C2-Board (12) Schematic Diagram (37 inch)

Schematic diagram for the C2-Board (part 1/2) for 37-inch models, showing driver and data connections.

11.35. C2-Board (22) Schematic Diagram (37 inch)

Schematic diagram for the C2-Board (part 2/2) for 37-inch models, showing driver and data connections.

11.36. SC-Board (13) Schematic Diagram

Schematic diagram for the SC-Board (part 1/3), showing driver circuits and power connections.

11.37. SC-Board (23) Schematic Diagram

Schematic diagram for the SC-Board (part 2/3), illustrating driver circuits and power supply regulators.

11.38. SC-Board (33) Schematic Diagram

Schematic diagram for the SC-Board (part 3/3), showing driver circuits and error detection logic.

11.39. SU-Board (12) Schematic Diagram (42 inch)

Schematic diagram for the SU-Board (part 1/2) for 42-inch models, showing driver ICs and connections.

11.40. SU-Board (22) Schematic Diagram (42 inch)

Schematic diagram for the SU-Board (part 2/2) for 42-inch models, showing driver ICs and connections.

11.41. SD-Board (12) Schematic Diagram (42 inch)

Schematic diagram for the SD-Board (part 1/2) for 42-inch models, showing driver ICs and connections.

11.42. SD-Board (22) Schematic Diagram (42 inch)

Schematic diagram for the SD-Board (part 2/2) for 42-inch models, showing driver ICs and connections.

11.43. SM-Board (14) Schematic Diagram (37 inch)

Schematic diagram for the SM-Board (part 1/4) for 37-inch models, showing driver ICs and connections.

11.44. SM-Board (24) Schematic Diagram (37 inch)

Schematic diagram for the SM-Board (part 2/4) for 37-inch models, showing driver ICs and connections.

11.45. SM-Board (34) Schematic Diagram (37 inch)

Schematic diagram for the SM-Board (part 3/4) for 37-inch models, showing driver ICs and connections.

11.46. SM-Board (44) Schematic Diagram (37 inch)

Schematic diagram for the SM-Board (part 4/4) for 37-inch models, showing driver ICs and connections.

11.47. SS-Board (12) and S-Board Schematic Diagram

Schematic diagrams for the SS-Board (part 1/2) and S-Board, illustrating driver circuits and power supply.

11.48. SS-Board (22) Schematic Diagram

Schematic diagram for the SS-Board (part 2/2), showing driver circuits and power supply regulators.

12 Printed Circuit Board

12.1. P-Board (42 inch)

Visual layouts of the P-Board (42 inch), showing foil and component sides for reference.

12.1. P-Board Parts Location

Lists the locations of ICs, transistors, and volumes on the P-Board for 42-inch models.

12.2. P-Board (37 inch)

Visual layouts of the P-Board (37 inch), showing foil and component sides for reference.

12.2. P-Board Parts Location

Lists the locations of ICs, transistors, and volumes on the P-Board for 37-inch models.

12.3. G, GH, GS, K and S-Board

Visual layouts of the G, GH, GS, K, and S-Boards, showing foil and component sides.

12.3. P-Board (Component Side)

Component side layout of the P-Board (LSEP1261BEHB) for 37-inch models.

12.3. G, GH, GS, K and S-Board

Visual layouts of the G, GH, GS, K, and S-Boards, showing foil and component sides.

12.4. A-Board

Visual layout of the A-Board, showing component placement on the foil side.

12.4. A-Board

Visual layout of the A-Board, showing component placement on the foil side.

12.4. A-Board

Component side layout of the A-Board, detailing component locations for various models.

12.5. C1-Board (42 inch)

Visual layouts of the C1-Board (42 inch), showing foil and component sides for reference.

12.5. C1-Board (FOIL SIDE)

Foil side layout of the C1-Board for 42-inch models, showing component placement and CR NO.

12.5. C1-Board (COMPONENT SIDE)

Component side layout of the C1-Board for 42-inch models, showing component placement.

12.6. C1-Board (37 inch)

Visual layouts of the C1-Board (37 inch), showing foil and component sides for reference.

12.7. C2-Board (42 inch)

Visual layouts of the C2-Board (42 inch), showing foil and component sides for reference.

12.7. C2-Board (FOIL SIDE)

Foil side layout of the C2-Board for 42-inch models, showing component placement and CR NO.

12.7. C2-Board (COMPONENT SIDE)

Component side layout of the C2-Board for 42-inch models, showing component placement.

12.8. C2-Board (37 inch)

Visual layouts of the C2-Board (37 inch), showing foil and component sides for reference.

12.9. SC-Board

Visual layouts of the SC-Board, showing foil and component sides for reference.

12.9. SC-Board (FOIL SIDE)

Foil side layout of the SC-Board, showing component placement.

12.9. SC-Board (COMPONENT SIDE)

Component side layout of the SC-Board, showing component placement and test points.

12.9. SC-Board

Visual layout of the SC-Board (component side) for both 42 and 37 inch models.

12.10. SU-Board (42 inch)

Visual layouts of the SU-Board (42 inch), showing foil and component sides for reference.

12.11. SD-Board (42 inch)

Visual layouts of the SD-Board (42 inch), showing foil and component sides for reference.

12.12. SM-Board (37 inch)

Visual layouts of the SM-Board (37 inch), showing foil and component sides for reference.

12.13. SS-Board

Visual layouts of the SS-Board, showing foil and component sides for reference.

12.13. SS-Board (COMPONENT SIDE)

Component side layout of the SS-Board, showing component placement and test points.

13 Exploded View and Replacement Parts List

13.1. Exploded View and Mechanical Replacement Parts List

Visual guide to the television's mechanical components for replacement purposes.

13.1.1. Exploded View

An exploded view illustration showing the arrangement of mechanical parts of the television.

13.1.2. Packing

Illustrations detailing the packing process and accessory items included with the television.

13.1.3. Mechanical Replacement Parts List

Lists mechanical replacement parts, with notes on safety characteristics and part sourcing.

13.2. Electrical Replacement Parts List

13.2.1. Replacement Parts List Notes

Notes on component safety characteristics and the importance of using manufacturer-specified parts.

13.2.2. Electrical Replacement Parts List (42 inch)

List of electrical replacement parts for 42-inch models, including part numbers, descriptions, and quantities.

13.2.3. Electrical Replacement Parts List (37 inch)

List of electrical replacement parts for 37-inch models, including part numbers, descriptions, and quantities.

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