Panasonic TC-P42X1 Revised Troubleshooting Handbook
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Panasonic TC-P42X1 Revised Troubleshooting Handbook

Plasma hd and fhd tv
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See also: Service Manual , Technical Manual
New 7 blinks
Troubleshooting
Procedure
Applies to models:
TC-P42X1
TC-P50X1
TC-P42C1
TC-P50C1
TC-P42S1
TC-P46S1
TC-P50S1
TC-P54S1
TC-P42U1
TC-P46U1
TC-P50U1
TC-P42G10
TC-P46G10
TC-P50G10
TC-P54G10
TC-P42G15
TC-P46G15
TC-P50G15
TC-42PS14
TC-50PS14
TC-P50V10
TC-P54V10
TTG090507CP\REV091117
Revised Troubleshooting Handbook
2009-Plasma HD and FHD TV (12
Panasonic Service and Technology Company
National Training
Model TC-P42PX1
th
Generation)
Slide #1

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Summary of Contents for Panasonic TC-P42X1

  • Page 1 2009-Plasma HD and FHD TV (12 Generation) Procedure Applies to models: TC-P42X1 TC-P50X1 TC-P42C1 TC-P50C1 TC-P42S1 TC-P46S1 TC-P50S1 TC-P54S1 TC-P42U1 TC-P46U1 TC-P50U1 TC-P42G10 TC-P46G10 TC-P50G10 TC-P54G10 TC-P42G15 TC-P46G15 TC-P50G15 TC-42PS14 Model TC-P42PX1 TC-50PS14 TC-P50V10 TC-P54V10 Panasonic Service and Technology Company National Training Slide #1 TTG090507CP\REV091117...
  • Page 2 National Training "HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“ Copyright © 2009 by Panasonic Service and Technology Company All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 3: Table Of Contents

    6 Blinks Error Code (Full-HD Models) Shutdown Detect Block Diagram 6 Blinks Error Code (Full-HD Models) Flowchart HD Panel Drive SOS Detect Block Diagram (TC-P42X1) 7 Blinks Error Code Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1) 7 Blinks Error Code Power LED’s Response to Connectors Removal (42”...

  • Page 4: Introduction

    Introduction 1. Basic concept of how to determine the defective board 1) Verification of voltages Normally, when there is a power problem, shutdown occurs immediately. So, to resolve a power problem, voltage checks are necessary before shutdown. 2) Check if the power comes up after disconnecting the board under suspicion. If power comes up (*) after disconnecting a board, the board is defective.

  • Page 5: Hd Boards Layout (Tc-P42X1)

    HD boards Layout (TC-P42X1) Slide #5...

  • Page 6: Full Hd Boards Layout (Tc-42Ps1)

    Full-HD boards Layout (TC-P42S1) Slide #6...

  • Page 7: Full-Hd Connector's Location (Tc-P42S1)

    Full-HD Connector’s Location (TC-P42S1) Slide #7...

  • Page 8: Troubleshooting Shutdown Problems

    Troubleshooting Shutdown Problems CAUTION: Some steps require removal of connectors and sometimes PC boards removal. Do not let the TV run for more than 30 seconds while connectors or boards are disconnected. Slide #8...

  • Page 9: Power Led's Response To Shutdown Operation

    Power LED’s Response to Shutdown Operation When an abnormality occurs in the TV, the “SOS Detect” circuit is triggered and the TV shuts down. The power LED on the front panel will flash a pattern indicating the circuit that has failed.

  • Page 10: Shutdown Detect Block Diagram

    Shutdown Detect Block Diagram Slide #10...

  • Page 11: Hd Panel Drive Sos Detect Block Diagram (Tc-P42X1)

    HD Panel Drive SOS Detect Block Diagram (TC-P42X1) Slide #11...

  • Page 12: Full-Hd Panel Drive Sos Detect Block Diagram (Tc-P42S1)

    Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1) Slide #12...

  • Page 13: Power Led's Response To Connectors Removal (42" Hd)

    Power LED’s Response to Connectors Removal (42” HD Models) HD Models Model: TC-P42X1 Do not remove any connectors from any of the PC boards unless instructed to do so. Connector Connector Connector Result CAUTION: Some steps require Unplugged removal of connectors and SOS 6 Blinks sometimes PC boards removal.

  • Page 14: Power Led's Response To Connectors Removal (50" Hd)

    Do not let the TV run for more than 30 seconds while connectors or boards are disconnected. Do not remove any connectors from any of the PC boards unless instructed to do so. Model: TC-P42X1 (SS Board Isolation) Model: TC-P42X1 (SC Board Isolation) Connector Connector Connector...
  • Page 15 Do not let the TV run for more than 30 seconds while connectors or boards are disconnected. Do not remove any connectors from any of the PC boards unless instructed to do so. Model: TC-P42X1 (SS Board Isolation) Model: TC-P50X1 (SC Board Isolation) Connector Connector Connector...

  • Page 16: Power Led's Response To Connectors Removal (Full Hd)

    Power LED’s Response to Connectors Removal (Full HD Models) Full HD Models Model: TC-P42S1 Do not remove any connectors from any of Connector Connector Connector Results the PC boards unless instructed to do so. SOS 6 Blinks Unplugged Left Half of Screen is OK (Right Side is Black) Unplugged CAUTION:...
  • Page 17 Power LED’s Response to Connectors Removal (Full HD Models) Full HD Models CAUTION: Some steps require removal of connectors and sometimes PC boards removal. Do not let the TV run for more than 30 seconds while connectors or boards are disconnected.

  • Page 18: Su And Sd Board Isolation Procedure

    SU and SD Boards Isolation Procedure If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Beginning last year (2008), the plasma TV are designed to shutdown if either the SU or SD board is disconnected.
  • Page 19 Procedure to Isolate both SU & SD at the Same Time If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. To isolate the SU and SD boards at the same time is not necessary to remove any of the boards: •...
  • Page 20 Procedure to Isolate both SU & SD at the Same Time If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Slide #20...

  • Page 21: Su Board Isolation Procedure

    SU Board Isolation Procedure If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. To isolate the SU board: Remove the 2 VF_GND screws on the SU board only.

  • Page 22: Sd Board Isolation Procedure

    SD Board Isolation Procedure If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. To isolate the SD board: Remove the 2 VF_GND screws on the SD board only.

  • Page 23: How To Easily Gain Access To The Ss Board

    How to Easily Gain Access to the SS board SCREW SCREW SCREW Remove the 3 screws that hold Let the A board assembly rest on the speaker’s the A board assembly in place magnet to gain access to the SS board Slide #23...

  • Page 24: Front Cabinet Removal

    Front Cabinet Removal Remove the rear cover. Remove the 4 screws holding the front panel in place. Remove the cables from the speakers. Remove the screws from the speakers (2 each). Remove the speakers. Remove the front cabinet. Note: To remove the front cabinet, pull the bottom slightly forward and then lift it Slide #24...
  • Page 25 SU and SD Boards Visual Inspection Check the ICs on the SU and SD boards for blown hole on the surface. Note: In some models it is not possible to check if these ICs are blown because they use surface-mount heat sinks that are glued to the surface of the ICs.

  • Page 26: Su,Sd, And Sc Boards Resistance Test Procedure

    SU,SD, and SC Boards Resistance Test Procedure SU,SD, and SC Boards Resistance Test Procedure Note: The result of the resistance test determine if the boards are bad, but it does not determine if they are 100% good. For this reason, after performing a resistance test, we need to further check the boards that check OK using another procedure.

  • Page 27: Su Board Resistance Test (All Models)

    SU Board Resistance Test (All Models) Preparation: Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector. Note: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.
  • Page 28 SD Board Resistance Test (All Models, Except TC-50PX14, TC-P50C1, TC-P50X1) Preparation: Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector. Note: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.
  • Page 29 SD Board Resistance Test ( Models: TC-50PX14, TC-P50C1, TC-P50X1) Preparation: Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector. Note: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.
  • Page 30 SC Board Resistance Test (All Models, Except TC-50PX14, TC-P50C1, TC-P50X1) Preparation: Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector. Note: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.

  • Page 31: Sc Board Resistance Test

    SC Board Resistance Test ( Models: TC-50PX14, TC-P50C1, TC-P50X1) Preparation: Disconnect AC Power prior to making any disconnection or connection. Wait at least 2 minutes before the removal of any connector. Note: If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off.

  • Page 32: Blink Error Code (All Models)

    1 Blink Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.

  • Page 33: Blinks Error Code (All Models)

    2 Blinks Error Code (All Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.

  • Page 34: Blinks Error Code (All Models)

    2 Blinks Error Code (All Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Start Here Unplug the TV and check the resistance between pin 1 of connector P6 and ground (Chassis) Is there a Unplug connectors P6, P11, and P25 on the P Plug in the TV and turn it on.

  • Page 35: Blinks Error Code

    3 Blinks Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.

  • Page 36: Blinks Error Code (All Models)

    4 Blinks Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.

  • Page 37: Blinks Error Code (All Models)

    5 Blinks Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.
  • Page 38 5 Blinks Error Code (All Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.
  • Page 39 5 Blinks Error Code (All Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Start Here Use a volt-meter and place the positive probe on pin 5 of connector P25 on the P board while the negative probe is grounded.

  • Page 40: Blinks Error Code Continue

    5 Blinks Error Code Continue If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Note B: The C board can be checked individually. Continue from the Reconnect the ribbon cables from the A board (A31, A32, previous slide (A)

  • Page 41: Blinks Error Code (Hd Models)

    SC2 is disconnected. This could damage the SS board. SC Energy Recovery Circuit SC, SS, A, SU,SD, and Loose connections Warning: Disconnect AC Power prior to making any disconnection or connection. LIST OF MODELS: TC-P42X1 TC-P42C1 TC-42PX14 TC-P50X1 TC-P50C1 TC-50PX14...

  • Page 42: Blinks Error Code (42" Hd Models) Flowchart

    If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. CAUTION: The TV power should not be turned on while LIST OF MODELS: TC-P42X1 TC-P42C1 TC-42PX14 SC2 is disconnected. This could damage the SS board.

  • Page 43: Blinks Error Code (50" Hd Models) Flowchart

    6 Blinks Error Code (50” HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. CAUTION: The TV power should not be turned on while LIST OF MODELS: TC-P50X1 TC-P50C1...
  • Page 44 6 Blinks Error Code (Full-HD) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection.
  • Page 45 6 Blinks Error Code (Full-HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. LIST OF MODELS TC-P42S1 TC-P42G10 TC-P42U1...
  • Page 46 7 Blinks Error Code (1 of 4) Trouble mode Defective Boards (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection. SC Floating Section SOS SU, SD, SC, A, P, & Panel LIST OF All 2009 Models MODELS: Preparation: Disconnect AC Power prior to making any disconnection or connection.
  • Page 47 7 Blinks Error Code (2 of 4) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Start Here Remove the front cabinet and check for cracks and blown pixels.
  • Page 48 7 Blinks Error Code (3 of 4) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Start Here Follow the SU/SD boards isolation procedure shown on slides 18, 19, and 20.
  • Page 49 SD SC and the A blink 7 times? boards. boards. Replace the SC board. LED stays ON TC-P42X1 Did the number of Any other number of blinks besides 10 and 6. blinks change? 10 times Unplug the TV and reconnect connector SC20 and the SU and SD boards.
  • Page 50 8 Blinks Error Code (HD Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. SS_Flexible Printed Circuit (FPC)_Detect (SOS8_SS) (TC-P42X1) Slide #50...
  • Page 51 Driver SOS3/SS_FPC_Detect SS, A, SS2, P, and Loose connections 42” HD Models (TC-P42X1 - TC-P42C1 –TC-42PX14) Make sure that connectors SS61, SS64, and SS21 on the SS board and connectors SS24, and SS58 on the SS2 board are properly seated.
  • Page 52 8 Blinks Error Code (HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. LIST OF MODELS: TC-P42X1 TC-P42C1 TC-42PX14 TC-P50X1...

  • Page 53: Blinks Error Code (Full-Hd Models)

    8 Blinks Error Code (Full HD Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Slide #53...

  • Page 54: Blinks Error Code

    8 Blinks Error Code (Full-HD Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or Driver SOS3/SS_FPC_Detect...
  • Page 55 8 Blinks Error Code (Full-HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Start Here Verify that all the flex-cables between the panel and the SS/SS2 boards are properly seated and the connectors are properly locked.

  • Page 56: Blinks Error Code

    9 Blinks Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Warning: Disconnect AC Power prior to making any Trouble Mode Defective Board disconnection or connection...
  • Page 57 10 Blinks Error Code (HD Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board A, P, Loose connections F-STB15V, SUB9V, SUB5V, BT30V Make sure that connectors P6/A6 is properly seated...

  • Page 58: Blinks Error Code (Hd Models) Flowchart

    10 Blinks Error Code (HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. LIST OF MODELS: TC-P42X1 TC-P42C1 TC-42PX14 TC-P50X1...

  • Page 59: Blinks Error Code (Full-Hd Models)

    10 Blinks Error Code (Full-HD Models) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any disconnection or SS, P, A, SC, SU, SD, K...

  • Page 60: Blinks Error Code (Full-Hd Models) Flowchart

    10 Blinks Error Code (Full HD Models) Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. LIST OF MODELS TC-P42S1 TC-P42G10 TC-P42U1...

  • Page 61: Blinks Error Code

    11 Blinks Error Code (Full-HD Models Only) If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection...

  • Page 62: Blinks Error Code (Hd Models) Flowchart

    12 Blinks Error Code Flowchart If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection Audio SOS...
  • Page 63 13 Blinks Error Code If the power LED continues to blink even after the TV is unplugged, press and hold the power switch on the TV for a few seconds until the LED turns off. Trouble Mode Defective Board (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection Communication Error between...

  • Page 64: No Power Flowchart

    No Power Flowchart Start Here Trouble Mode Defective Board (Possibilities) Dead/No power P, A, C1, K, S Do the AC relays click after pressing the power switch? Place your voltmeter on pin Unplug the TV and remove connectors P6 and P25 11 of connector P25 and on the P board and C11 on the C1 board.

  • Page 65: Service Mode

    Service Mode To Enter the Service Mode: While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. Key command [1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction [VOL] button...Value of sub items change in forward...

  • Page 66: Self Check

    Self Check 1. Checks the communication IIC bus lines To Access the Self-Check Mode: Turn the TV on and while pressing “VOLUME ( - )” button on To Access the Self-Check Mode: Turn the TV on and while pressing “VOLUME ( - )” button on the main unit, press the “OK”...

  • Page 67: Reset Procedure

    Reset Procedure Note: All customer programmed parameters will be erased. Reset forces the TV to factory shipment setting. To reset the Press and hold the “VOLUME ( - )”button on the TV and press the “MENU” button on the remote control for more than 3 seconds. To Exit: Disconnect the AC cord from wall outlet.

  • Page 68: Sos History

    SOS History A history of SOS occurrences can be found under the Version Menu. To Enter: Press the “Menu” button Select “Setup” (Go to the 2 page) Select “About” Select “Version” The first 5 numbers out of the two 5-digits groups to the right of “Status2”...

  • Page 69: Diagnostic Method For Troubleshooting Pdp Television

    Diagnostic Method for Troubleshooting PDP Television 1. There are two kinds of picture problem 1) Abnormal picture 2) No picture 2. Basic concept of determining the defective board 1) Which area is the symptom displayed on the screen? A. Part of the screen B.
  • Page 70 Picture Problem Troubleshooting Start Some part of the screen Upper half *Note :Panel gas leakage Where is the symptom SU Board (or A, or SC) displayed? Lower half Upper or Lower half (from front view) SD Board (or A, or SC) Both area SC Board (or A) Because of a very small crack in the...

  • Page 71: The End

    The End Slide #71...

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