Download Revised Troubleshooting Handbook
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New 7 blinks Troubleshooting Procedure Revised Troubleshooting Handbook 2009-Plasma HD and FHD TV (12th Generation) 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 Model TC-P42PX1 Panasonic Service and Technology Company National Training TTG090507CP\REV091117 Slide #1 Prepared by Cesar Perdomo Panasonic Service and Technology Company 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. Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death. Slide #2 Table of Content Subject Table of Contents Introduction HD Boards Layout (TC-P42X1) Full HD Boards Layout (TC-42PS1) Full-HD Connector’s Location (TC-P42S1) Troubleshooting Shutdown Problems Power LED’s Response to Shutdown Operation Shutdown Detect Block Diagram HD Panel Drive SOS Detect Block Diagram (TC-P42X1) Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1) Power LED’s Response to Connectors Removal (42” HD) Power LED’s Response to Connectors Removal (42” HD) Power LED’s Response to Connectors Removal (50” HD) Power LED’s Response to Connectors Removal (Full HD) Power LED’s Response to Connectors Removal (Full HD) SU and SD board Isolation Procedure Procedure to Isolate Bothe SU and SD at the Same Time Procedure to Isolate Bothe SU and SD at the Same Time SU Board Isolation Procedure SD Board Isolation Procedure How to Easily Gain Access to the SS board Front Cabinet Removal SU and SD Boards Isolation Procedure SU, SD, and SC Boards Resistance Test Procedure SU Board Resistance Test (All Models) SD Board Resistance Test (All Models Except TC-50PX14, TC-P50X1, TC-P50C1) SD Board Resistance Test ( Models: TC-50PX14, TC-P50X1, TC-P50C1) SC Board Resistance Test (All Models Except TC-50PX14, TC-P50X1, TC-P50C1) SC Board Resistance Test ( Models: TC-50PX14, TC-P50X1, TC-P50C1) 1 Blink Error Code (All Models) 2 Blinks Error Code (All Models) 2 Blinks Error Code (All Models) 3 Blinks Error Code (All Models) 4 Blinks Error Code (All Models) Slide 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Subject 5 Blinks Error Code 5 Blinks Error Code (All Models) 5 Blinks Error Code (All Models) 5 Blinks Error Code Continue 6 Blinks Error Code (HD Models) 6 Blinks Error Code (42” HD Models) Flowchart 6 Blinks Error Code (50” HD Models) Flowchart 6 Blinks Error Code (Full-HD Models) 6 Blinks Error Code (Full-HD Models) Flowchart 7 Blinks Error Code 7 Blinks Error Code 7 Blinks Error Code 7 Blinks Error Code 8 Blinks Error Code (HD Models) 8 Blinks Error Code (HD Models) 8 Blinks Error Code (HD Models) Flowchart 8 Blinks Error Code (Full-HD Models) 8 Blinks Error Code (Full-HD Models) 8 Blinks Error Code (Full-HD Models) Flowchart 9 Blinks Error Code 10 Blinks Error Code (HD Models) 10 Blinks Error Code (HD Models) Flowchart 10 Blinks Error Code (Full-HD Models) 10 Blinks Error Code (Full-HD Models) Flowchart 11 Blinks Error Code (Full-HD Models) 12 Blinks Error Code (Full-HD Models) 13 Blinks Error Code No Power Flowchart Service Mode Self Check Reset Procedure SOS History Diagnostic Method for Troubleshooting PDP Television Picture Problem Solution The End Slide 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Slide #3 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. (*) “Power comes up” equals “no shutdown”. 2. Troubleshooting Video and Audio problems 3. Examples of video problems 4. Adjustment after PCB exchange 1) After exchanging the following boards, voltage adjustment is required. P board, SC board, SS board => Please refer to the “Service Manual”. Slide #4 HD boards Layout (TC-P42X1) Slide #5 Full-HD boards Layout (TC-P42S1) Slide #6 Full-HD Connector’s Location (TC-P42S1) Slide #7 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 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. 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: 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 #9 Shutdown Detect Block Diagram Slide #10 HD Panel Drive SOS Detect Block Diagram (TC-P42X1) Slide #11 Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1) Slide #12 Power LED’s Response to Connectors Removal (42” HD Models) HD Models Do not remove any connectors from any of the PC boards unless instructed to do so. 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. CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. Model: TC-P42X1 Connector Connector Connector A20 Result OK Unplugged A31 SOS 6 Blinks Unplugged A32 Unplugged A20 A31 Unplugged Unplugged SOS 6 Blinks OK A20 A32 Unplugged Unplugged A31 A32 Unplugged Unplugged A20 A31 A32 Unplugged Unplugged Unplugged OK SOS 6 Blinks TV Stays On With Black Screen Slide #13 Power LED’s Response to Connectors Removal (42” HD Models) 42”HD Models CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. 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. 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 SC2 Connector On SS board Result SC3 SC20 Unplugged SC2 SC3 Unplugged Unplugged Unplugged OK SOS 7 Blinks SC20 SC2 Unplugged SC3 SC20 Unplugged Unplugged Connector SOS 8 Blinks SOS 8 Blinks Result SOS 6 Blinks Unplugged SS3 SOS 6 Blinks Unplugged SOS 6 Blinks Unplugged Connector SS11 SOS 7 Blinks Unplugged Connector SS23 Unplugged SS11 SS3 Unplugged Unplugged SOS 6 Blinks SS11 SS23 Unplugged Unplugged SS3 SS23 Unplugged Unplugged SS11 SS3 SS23 Unplugged Unplugged Unplugged SC2 SC3 SC20 SS11 Unplugged Unplugged Unplugged Unplugged SC20 SC2 SS11 Unplugged Unplugged Unplugged SS11 SC20 Unplugged Unplugged OK SOS 6 Blinks SOS 6 Blinks SOS 6 Blinks OK OK OK Slide #14 Power LED’s Response to Connectors Removal (50” HD Models) 50”HD Models CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. 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. 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 On C1 board Connector Connector Connector On SS board SC3 Result SC20 SC3 SC20 SS11 Unplugged Unplugged Unplugged C10 SC20 SS11 Unplugged Unplugged Unplugged Connector SOS 8 Blinks OK SC3 SC20 SS11 Unplugged Unplugged Unplugged SC20 SS11 Unplugged Unplugged SC20 SS11 Unplugged Unplugged Result SOS 6 Blinks Unplugged SS3 SOS 6 Blinks Unplugged SOS 6 Blinks Unplugged Connector SS11 SOS 6 Blinks Unplugged Connector SS23 Unplugged SS11 SS3 Unplugged Unplugged OK SOS 6 Blinks SS11 SS23 Unplugged Unplugged SS3 SS23 Unplugged Unplugged SS11 SS3 SS23 Unplugged Unplugged Unplugged SOS 6 Blinks SOS 6 Blinks SOS 6 Blinks SOS 6 Blinks SOS 6 Blinks SOS 6 Blinks Slide #15 Power LED’s Response to Connectors Removal (Full HD Models) Full HD Models Model: TC-P42S1 Do not remove any connectors from any of the PC boards unless instructed to do so. Connector Connector Connector A33 SOS 6 Blinks Unplugged Left Half of Screen is OK (Right Side is Black) A31 Unplugged 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. Results A32 Unplugged A33 A31 Unplugged Unplugged SOS 6 Blinks SOS 6 Blinks * A33 A32 Unplugged Unplugged A31 A32 Unplugged Unplugged A33 A31 A32 Unplugged Unplugged Unplugged OK SOS 6 Blinks TV Stays On With Black Screen Slide #16 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. Do not remove any connectors from any of the PC boards unless instructed to do so. Model: TC-P42S1 Connectors Combination between SS and SC Boards) SC Board SS Board Result Model: TC-P42S1 (SS Board Isolation) Connector Connector Connector SC20 Unplugged SC2 Unplugged SC20 SC2 Unplugged Unplugged Connector Results Connector SS11 SS33 Unplugged SS11 SS33 Unplugged Unplugged Connector SS11 SC2 Unplugged Unplugged SS11 SC20 7 Blinks * Unplugged Unplugged SS11 SC2 SC20 6 Blinks * Unplugged Unplugged Unplugged Result OK Unplugged Connector 6 Blinks * Model: TC-P42S1 (SS Board Isolation) Connector Connector OK OK SS11 SS33 SC2 Unplugged Unplugged Unplugged 7 Blinks SS11 SS33 SC20 Unplugged Unplugged SS11 SS33 SC2 SC20 Unplugged Unplugged Unplugged Unplugged SS33 SC2 Unplugged 6 Blinks 7 Blinks Unplugged Unplugged 6 Blinks 6 Blinks 6 Blinks 7 Blinks SS33 SC20 Unplugged Unplugged SS33 SC2 SC20 Unplugged Unplugged Unplugged 6 Blinks 6 Blinks Slide #17 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. Disconnecting either board causes the unit to shutdown and the power LED to blink 7 times. Unplugging any of the connectors SC41/SU41, SU11/SD11, and SC42/SD42, opens the interlocked connection between VF_GND and CHA on the SC board. This floats point “CHA” triggering the SOS7 detect circuit. This outputs a high to the A board through connector SC20 triggering shutdown. A new SC test fixture (Jig) can be used when the SU and SD boards are isolated. The jig is a small connector with a jumper between pin 1 and pin 2. The part number is TZSC09187. It plugs into connector SC50 on the SC board. Slide #18 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: • Remove the 4 VF_GND screws (2 on the SU board and 2 on the SD board). • Unplug connectors SC41, SC46, and SC42 on the SC board. • Place the SC jig cable (TZSC09187) between pins 1 and 2 of connector SC50 on • the SC board. Note: If the SC jig is not available, install a jumper between pins 1 and 2 of connector SC50 on the SC board. (Remove the jig or the jumper after completing isolation procedure). When this is done, the display is completely black (No picture) Note: This procedure could be useful when troubleshooting 7 blinks problems. Slide #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. Slide #20 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: 1. Remove the 2 VF_GND screws on the SU board only. 2. Unplug connector SC41 on the SC board and SU11 on SU board. 3. Place SC jig cable ZSC09187)between pins 1 and 2 of connector SC50 on the SC board. Note: If the SC jig is not available, install a jumper between pins 1 and 2 of connector SC50 on the SC board. (Remove the jig or jumper after completing isolation procedure) Note: This procedure could be useful when troubleshooting 7 blinks problems. Slide #21 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: 1. Remove the 2 VF_GND screws on the SD board only. 2. Unplug connector SC42/SU42, SC46/SD46, and SU11/SD11 from the SD board. 3. Place SC jig cable (TZSC09187) between pins 1 and 2 of connector SC50 on the SC board. Note: If the SC jig is not available, install a jumper between pins 1 and 2 of connector SC50 on the SC board. (Remove the jig or jumper after completing isolation procedure) Note: This procedure could be useful when troubleshooting 7 blinks problems. Slide #22 How to Easily Gain Access to the SS board SCREW SCREW SCREW 1 Remove the 3 screws that hold the A board assembly in place 2 Let the A board assembly rest on the speaker’s magnet to gain access to the SS board Slide #23 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 up. Slide #24 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. This is an example of what a blown IC looks like Slide #25 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. Slide #26 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. Unplug connector SU41 and SU11. Remove the 2 floating ground screws from the SU board. Procedure: Using a digital meter measure the resistance between VF-ground (Floating ground) and pin 2 of connector SU41 on the SU board. The normal resistance should be approximately 2.1Mega-ohms. Note: A low resistance reading indicates a defective SU board. Slide #27 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. Unplug connectors SD42, SD46 and SD11. Remove the 2 floating ground screws from the SD board. Procedure: Using a digital meter, measure the resistance between VF-ground (Floating ground) and pin 9 of connector SD42 on the SD board. The normal resistance should be approximately 2.1Mega-ohms. Note: A low resistance reading indicates a defective SD board. Slide #28 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. Unplug connectors SD42, SD46 and SD11. Remove the 2 floating ground screws from the SD board. Procedure: Using a digital meter, measure the resistance between VF-ground (Floating ground) and pin 1 of connector SD42 on the SD board. The normal resistance should be approximately 2.1Mega-ohms. Note: A low resistance reading indicates a defective SD board. Slide #29 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. Unplug connectors SD42, SD46, SU41 and SD11. Out of all 4 floating ground screws on the SU and SD boards, remove 3 and leave only one in. Procedure: Using a digital meter measure the resistance between the VF-ground screw (Floating ground) and pin 3 of connector SC42. Also measure the resistance between the VF-ground screw (Floating ground) and pin 5 of connector SC42 on the SC board. The normal resistance for pin 3 is approximately 2.9Kilo-ohms and approx. 5.7Kilo-ohms for pin 5. Note: A low resistance reading indicates a defective SC board. Slide #30 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. Unplug connectors SD42, SD46, SU41 and SD11. Out of all 4 floating ground screws on the SU and SD boards, remove 3 and leave only one in. Procedure: Using a digital meter measure the resistance between the VF-ground screw (Floating ground) and pin 5 of connector SC42. Also measure the resistance between the VF-ground screw (Floating ground) and pin 7 of connector SC42 on the SC board. The normal resistance for pin 5 is approximately 2.9Kilo-ohms and approx. 5.7Kilo-ohms for pin 7. Note: A low resistance reading indicates a defective SC board. Slide #31 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 Communication Error A, P, Loose connections Warning: Disconnect AC Power prior to making any disconnection or connection. Make sure that connectors P25 and D25 are properly seated Start Here Plug in the TV No Is there 5V at pin 9 of connector P25/A25? Yes Unplug in the TV Replace the A board No Replace the P board Is there continuity between pin 9 of connector P25 and pin 5 of connector P7 on the P board? Yes Reseat P25/A25 or Replace the cable Slide #32 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 P15V A, SC, SS Warning: Disconnect AC Power prior to making any disconnection or connection. These 3 conditions can cause the TV to shutdown and the power LED to blink 2 times 1. Missing P15V 2. A short of the P15V 3. Wrong diagnostic by the A board Slide #33 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) No Plug in the TV and turn it on. Measure the voltage at pin 1 of connector P6 No Is there 15V present? Reconnect P25 and measure the resistance between pin 1 of connector P6 and ground (Chassis) No Replace The A board Is there a short circuit? Unplug connectors P6, P11, and P25 on the P board. Measure the resistance between pin 1 of connector P6 and ground (Chassis) Yes No Yes Replace The A board Replace The P board Is there a short circuit? Yes Reconnect P11 and measure the resistance between pin 1 of connector P6 and ground (Chassis) No Disconnect SC20 on the SC board and measure the resistance between pin 1 of connector P6 and ground (Chassis Is there a short circuit? Yes Is there a short circuit? Replace The P board Yes Replace The SS board No Replace The SC board Is there a short circuit? Yes Replace The A board Slide #34 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 3.3V down SOS A Board Warning: Disconnect AC Power prior to making any disconnection or connection. Start Here Replace the A board Slide #35 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 Power Supply SOS Primarily P board or possible A board TC-P42G10 TC-P46G10 TC-50G10 Warning: Disconnect AC Power prior to making any disconnection or connection. TC-P54G10 All other 2009 Models Start Here Disconnect the TV. Disconnect P2 and P11 on the P board Measure the resistance between pin 1 of connector SS11 on the SS board and ground (Chassis). Yes Is there a short to ground? No Yes Start Here Does the power supply makes a “chirp” noise at plug in? No Measure the resistance between pin 1 of connector SC2 on the SC board and ground (Chassis). Replace the SS board Turn the TV on Yes Yes Replace the SC board Is there a short to ground? No P Board Is pin 12 of CN P25 on the P board high before the TV shuts down? No A Board Replace the P board Slide #36 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 5V SOS P, C, SC, SS board or Panel Warning: Disconnect AC Power prior to making any disconnection or connection. These 4 conditions can cause the TV to shut down and the power LED to blink 5 times 1. Missing P5V 2. A short of the P5V 3. A short of the Vda line (Note: missing Vda from the P board does not cause 5 blinks) 4. Wrong diagnostic by the A board Slide #37 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 5V SOS P, C, A,SC, SS board or Panel TC-P42G10 TC-P46G10 Warning: Disconnect AC Power prior to making any disconnection or connection. TC-50G10 TC-P54G10 All other 2009 Models Start Here Disconnect the TV. Disconnect P2 and P11 on the P board Measure the resistance between pin 1 of connector SS11 on the SS board and ground (Chassis). Yes Replace the SS board Is there a short to ground? Yes Replace the SC board No Is there a short to ground? Yes Start Here Does the power supply makes a “chirp” noise at plug in? Measure the resistance between pin 1 of connector SC2 on the SC board and ground (Chassis). No Disconnect the TV. Measure the resistance between pin 1 of connector P35 on the P board and ground (Chassis). Yes No Panel Replace the P board Note: Even though it does not happen often, the 5 blinks shutdown can also be caused by one of the C boards Is there a short to ground? No Proceed to more extensive troubleshooting of the slides that follow. Slide #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. 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. Plug in the TV and turn it on Replace the A board Yes Is there 5V? No Disconnect the TV and measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). Yes Is there a short to ground? Replace the P board No No Yes Disconnect P25 on the P board. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). Reconnect P25 and disconnect SC20 on the SC board. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). Is there a short to ground? Replace the P board Yes No Is there a short to ground? Reconnect SC20 and disconnect SS23 (HD models)/SS33 (FullHD models) on the SS board. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). Yes Go to the next slide (A) Is there a short to ground? Disconnect SC46 and reconnect SC20 on the SC board. Measure the resistance between pin 5 of connector P25 on the P board and ground Chassis). Yes No Replace the SS board Replace the SC board Is there a short to ground? No Replace the SD board Slide #39 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. Reconnect the ribbon cables from the A board (A31, A32, and A20 for HD models/A33). Disconnect the flex cables between the panel and the C boards tested. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). If there is still a short circuit, change the C board. Continue from the previous slide (A) Reconnect SS23/SS33 and disconnect A31, A32, and A20 for HD models/A33 on the A board. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis). Yes Replace the A board Is there a short to ground? No Check the C boards (See Note: B) If the C boards are ok, replace the Panel Slide #40 6 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 CAUTION: The TV power should not be turned on while 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 Slide #41 6 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. LIST OF MODELS: TC-P42X1 TC-P42C1 CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. TC-42PX14 Start Here Verify that all the cables plugged in to the SC and SS boards are properly seated. Also check the ribbon cables and connectors on the A and C boards. Unplug the TV and disconnect connector SC20 on the SC board. Plug in the TV and turn it on Yes Unplug the TV and reconnect connectors SC20. (Follow the SU/SD boards isolation procedure shown on slides 17~19). Plug in the TV and press the power switch Yes Does the TV power up and stay on? Does the TV power up and stay on? 6 times Replace the SS board No 8 times No Did the number of blinks change? Yes 10 times Replace the A board No Unplug the TV and with SC20 still disconnected, disconnect SS11 on the SS board. Plug in the TV and turn it on. 6 times 8 times Replace the SS and A boards The SU or/and the SD Boards can be defective. Follow procedure on slides 17~21 to determine which of the 2 boards is defective. Yes 10 times Replace the SC board Replace the A board Is the power LED still blinking? No Replace the SS and SC boards Slide #42 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. LIST OF MODELS: TC-P50X1 TC-P50C1 TC-50PX14 CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. Start Here Verify that all the cables plugged in to the SC and SS boards are properly seated. Also check the ribbon cables and connectors on the A and C boards. Unplug the TV and disconnect connector SC20 on the SC board. Plug in the TV and turn it on 6 times No Unplug the TV and disconnect connector SC20 on the SC board, SS11 on the SS board and C10 on the C1 board. Plug in the TV and turn it on Yes Is the power LED still blinking? No Did the number of blinks change? Yes Replace the SS board 8 times 10 times Unplug the TV and reconnect connectors SC20, SS11, and C10. (Follow the SU/SD boards isolation procedure shown on slides 17~19). Plug in the TV and press the power switch Replace the A board NOTE: The SS board may had just become damaged (Shorted Vsus). Unplug the TV. Keep SC20 disconnected and disconnect connector SS11 on the SS board and C10 on the C1 board. Plug in the TV and turn it on Yes Yes The SU or/and the SD Boards can be defective. Follow procedure on slides 17~21 to determine which of the 2 boards is defective. Does the TV power up and stay on? No Replace the SC board Replace the SS and A boards Is the power LED still blinking? No Replace the SS and SC boards Slide #43 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 SC Energy Recovery Circuit SC, A, SU,SD, and Loose connections Warning: Disconnect AC Power prior to making any disconnection or connection. LIST OF MODELS: TC-P42S1 TC-P42G10 TC-P42U1 TC-P42U1 TC-42PS14 TC-P46S1 TC-P46G10 TC-P46U1 TC-P50S1 TC-P50G10 TC-P50U1 TC-P50V10 TC-50PS14 TC-P54S1 TC-54G10 Slide #44 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 TC-P42U1 TC-42PS14 TC-P46S1 TC-P46G10 TC-P46U1 TC-P50S1 TC-P50G10 TC-P50U1 TC-P50V10 TC-50PS14 TC-P54S1 TC-54G10 Start Here Verify that all the cables plugged in to the SC and SS boards are properly seated. Also check the ribbon cables and connectors on the A and C boards. Unplug the TV and disconnect connector SC20 on the SC board and the ribbon cable between connector C10 on the C1 board and connector C20 of the C2 board. Plug in the TV and turn it on Yes 8 blinks Unplug the TV and reconnect connector SC20 and the ribbon cable between the C boards. Disconnect connector SS33 on the SS board. Plug in the TV and press the power switch No Is the power LED still blinking? Did the number of blinks change? No 6 blinks Unplug the TV and reconnect connector SS33 on the SS board. (Follow the SU/SD boards isolation procedure shown on slides 17~19). Plug in the TV and press the power switch Yes 6 blinks Yes 8 blinks Replace the SS Replace the A board Replace the A board The SU board or/and the SD board can be defective. Follow procedure on slides 17~21 to determine which of the 2 boards is defective. Does the TV power up and stay on? No Replace the SC board Slide #45 7 Blinks Error Code (1 of 4) Trouble mode Defective Boards (Possibility) SC Floating Section SOS SU, SD, SC, A, P, & Panel LIST OF MODELS: Warning: Disconnect AC Power prior to making any disconnection or connection. All 2009 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. Remove the front cabinet and expose the panel to a bright light for a thorough visual inspection. Check for cracks and blown pixels or any other abnormalities. 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. Slide #46 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 1. 2. 3. Remove the front cabinet and check for cracks and blown pixels. (For front cabinet removal procedure go to slide 24). Check the ICs on the SU and SD boards for blown hole on the surface. (Go to slide 25 to see pictures) Perform the SU, SD, and SC boards resistance test procedure shown on slides 26~31. Match the result with one of the following boxes (A~D) and follow the instructions at the bottom of the page. AA BB C C D D Board Result Board Result Board Result Board Result Board Result Board Result SU Bad SU OK SU OK SU Bad SU OK SU OK SD OK SD Bad SD Bad SD Bad SD OK SD OK SC OK SC OK SC Bad SC Bad SC Bad SC OK Board Result Board Result SU Bad SU Bad SD Bad SD OK SC OK SC Bad Follow this procedure if the SU board and/or the SD board are bad while the SC board measures OK Go to the next slide Follow this procedure if the SU board and/or the SD board are bad while the SC board is also bad Replace the SU, SD, and SC boards Follow this procedure if only the SC board is bad Replace the SC board. Follow this procedure when all 3 boards check OK Go to the Slide #16 Slide #47 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. A Start Here Follow the SU/SD boards isolation procedure shown on slides 18, 19, and 20. Plug in the TV and press the power switch No Replace the SU and the SD boards. Does the TV shut down and the power LED blink 7 times? Yes Replace the SU, SD, and SC boards Slide #48 7 Blinks Error Code (4 of 4) D Caution: 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. Plug in the TV and press the power switch Warning: Disconnect AC Power prior to making any disconnection or connection. Does the TV shut down and the power LED blink 7 times? With the SU board and the SD board still disconnected, remove connector SC20 from the SC board. Plug in the TV and turn it on. No Replace the SC and the A boards. Replace the SU and the SD boards. Replace the SC board. Yes LED stays ON TC-P42X1 Yes Any other number of blinks besides 10 and 6. Unplug the TV and reconnect connector SC20 and the SU and SD boards. Measure the resistance between pin 1 of P2/SC2 or P11/SS11 (Vsus) and ground. Unplug SS11 and measure the resistance between pin 1 of SC2/P2 (Vsus) and ground. No Replace the SS And SC boards Is there a short circuit? Yes Is there a short circuit? Did the number of blinks change? No 10 times 6 times No Replace the SC board. 7 times Replace the A board. Yes Replace the P and SC boards Replace the SC and A boards Slide #49 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 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. Trouble Mode Defective Board 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. 50” HD Models (TC-P50X1 - TC-P50C1 –TC-50PX14) Make sure that connectors SS53, SS55, SS56, and SS21 on the SS board and connectors SS24, and SS58 on the SS2 board are properly seated. Note: D285 (D16285 on the Service Manual) is located approx. ¼ of an inch away from the left side of connector SS22. (D16285) D285 ANODE CATHODES 42” HD 50” HD Slide #51 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 TC-P50C1 TC-50PX14 CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. 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. Unplug the TV and disconnect connector SS23 from the SS board. Plug in the TV and turn it on Yes Does the TV power up and stay on? Unplug the TV and reconnect SS23. Use a volt-meter and place the positive probe on the anode of D285 on the SS board (See previous slide for location), while the negative probe is grounded. Yes Is there approx. 7.2V at the anode of D285 on the SS board? No No 8 blinks Did the number of blinks change to 6 or 7 blinks? Yes Replace the A board Unplug the TV and reconnect SS23. Remove the ribbon cables from connector A31, A32, and A20 on the A board. Plug in the TV and turn it on Replace the panel Note: Before replacing the panel, Replace SS board No double check all the flex-cables between the panel and the SS/SS2 boards. Make sure they are properly seated and that the connectors are properly locked. Yes Replace the A board Does the TV power up and stay on with the SC LED on? No Replace the P board Slide #52 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 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 Driver SOS3/SS_FPC_Detect SS, A, SS2, P, and Loose connections 42” Full HD Models (TC-P42S1 - TC-P42G10 – TC-P42U1 – TC-42PS14). Make sure that connectors SS61, SS64, and SS21 on the SS board and connectors SS24, and SS58 on the SS2 board are properly seated. 46” Full HD Models (TC-P46S1 - TC-P46G10 - TC-P46U1). Make sure that connectors SS61, SS63, SS64, and SS21 on the SS board and connectors SS24, and SS58 on the SS2 board are properly seated. 50” and 54” Full HD Models (TC-P50S1 – TC-P50G10 – TC-P50U1 – TC-P50V10 – TC-50PS14 – TC-P54S1 – TC-54G10). Make sure that connectors SS53, SS55, SS56, and SS21 on the SS board and connectors SS24, and SS58 on the SS2 board are properly seated. 42” FHD 46” FHD Warning: Disconnect AC Power prior to making any disconnection or connection. Note: D280 (D16280 on the Service Manual) is located less than inch away from the right side of connector SS33 ANODE D280 (D16280) CATHODE 50” & 54” FHD Slide #54 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. Unplug the TV and disconnect connector SS33 from the SS board. Plug in the TV and turn it on Yes Does the TV power up and stay on? At this point there are 2 possibilities, The SS board and the panel. The SS board is by far the number 1 suspect. To determine which of the 2 is causing the problem: Disconnect the TV. Use a volt-meter and place the positive probe on the anode of D280 on the SS board (See previous slide for location), while the negative probe is grounded. Plug in the TV and turn it on Yes Is there approx. 4V at the anode of D280 on the SS board? No No Replace the SS board Did the number of blinks change to 6 or 7 blinks? Yes 8 Blinks Unplug the TV and reconnect SS33. Remove the ribbon cables from connector A31, A32, and A33 on the A board. Plug in the TV and turn it on Yes Replace the panel No Replace the A board Does the TV power up and stay on with the SC and SS LED on? No Replace the P board Replace the A board Slide #55 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. Trouble Mode Panel Status/Communication Defective Board Warning: Disconnect AC Power prior to making any disconnection or connection A Board Replace the A board. Slide #56 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 F-STB15V, SUB9V, SUB5V, BT30V Defective Board A, P, Loose connections Make sure that connectors P6/A6 is properly seated B B A Warning: Disconnect AC Power prior to making any disconnection or connection. IMPORTANT: Unlike previous generations, there’s no 10 blinks error code at plug-in for 2009 models. When the A board is replaced, the TV turns on in aging mode by itself at plug in. C D D What can possibly cause 10 blinks A. Missing/Shorted F_15V B. Shorted Vsus C D C. Missing/Shorted SUB5V, SUB9V, BT30V. D. IC1100, IC9003, IC9004 E. Possibly SU and SD boards Slide #57 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 TC-P50C1 TC-50PX14 Start Here Unplug the TV. Measure the resistance between pin 1 of P2/SS2 or P11/SS11 (Vsus) and ground. Is there a short circuit? Yes Unplug SS11 and measure the resistance between pin 1 of SC2/P2 (Vsus) and ground. No Is there a short circuit? Replace the SS board (See Note 2) (See Note 3) Replace the SC board (See Note 2) (See Note 3) No Yes Is there a short circuit? No CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board. Note 1: If the TV does not turn on at all, unplug it and leave it unplugged for 3 minutes. Plug in the TV and press the power switch Unplug SC2 and measure the resistance between pin 1 of P2/P11 (Vsus) and ground. Is there 15V at pin 7 of connector P6 at the moment the relay clicks ? Yes Disconnect the TV and unplug connector A1. Plug in the TV. Ground pin 8 of connector A1 momentarily. Yes Replace the P board Yes Note 2: If the SS or SC board fail repeatedly with shorted Vsus, replace the A board also. Note 3: If after replacing the SS or SC board the blinking pattern changes, replace the A board also. Replace the K board Does the TV power up and stay on? No Replace the P board No Replace the A board Slide #58 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 F-STB15V, SUB9V, SUB5V, BT30V, Shorted Vsus SS, P, A, SC, SU, SD, K Warning: Disconnect AC Power prior to making any disconnection or connection. Make sure that connectors SC20/A33, SC2/P2, P6/A6 are properly seated B B What can possibly cause 10 blinks A A. Missing/Shorted F_15V B. Shorted Vsus C C. Missing/Shorted SUB5V, SUB9V, BT30V. E D. IC1100, IC9003, IC9004 D E. Unplugged SC20, SC2 D F. Possibly SU and SD boards E C D Slide #59 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 TC-P42U1 TC-42PS14 TC-P46S1 TC-P46G10 TC-P46U1 TC-P50S1 TC-P50G10 TC-P50U1 TC-P50V10 TC-50PS14 TC-P54S1 TC-54G10 Start Here Note 2: If the SS or SC board fail repeatedly with shorted Vsus, replace the A board also. Unplug the TV and remove connectors SS11 and SS33 from the SS board. Plug in the TV and press the power switch Replace the SS board (See Note 2) Yes Does the TV power up and stay on? No Leave SS11 and SS33 unplugged. Remove connectors SC2, SC20 on the SC board. Then plug in the TV and press the power switch 6 blinks Unplug the TV and reconnect connectors SC2, SC20, SS11, and SS33. (Follow the SU/SD boards isolation procedure shown on slides 17~19). Plug in the TV and press the power switch Yes Does the TV power up and stay on? Yes Did the number of blinks change? Any other blinking code No Replace the A board Replace the SC board The SU or/and the SD Boards can be defective. Follow procedure on slides 17~21 to determine which of the 2 boards is defective. Note: If the TV does not turn on at all, unplug it and leave it unplugged for 3 minutes. No Disconnect the TV and unplug connector A1. Plug in the TV. Ground pin 8 of connector A1 momentarily. Yes Replace the K board Unplug the TV and reconnect connectors SS11, SS33, SC2, and SC20. Plug in the TV and press the power switch 10 Blinks Does the TV power up and stay on? Yes Is there 15V at pin 7 of No connector P6 at the moment the relay clicks ? No No Replace the A board Replace the P board Slide #60 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) Fan SOS Fans, A Board, Connections NOTE A: Use a piece of wire, the size of a ¼ watt resistor’s leads as a jumper. JUMPER WIRE Make sure that connector A30 is properly seated BLACK PLUG Start Here Unplug the TV and disconnect the connector from Fan A. Place a jumper wire (NOTE “A”) between the center pin (Black wire) and the pin with the yellow wire on the black plug. Plug in the TV and press the power switch FAN CONNECTOR A Warning: Disconnect AC Power prior to making any disconnection or connection B Yes Fan Connector Fan Connector Replace Fan A Does the TV power up and stay on? No Unplug the TV and reconnect Fan. Disconnect the connector from Fan B. Place a jumper wire (NOTE “A”) between the center pin (Black wire) and the pin with the yellow wire on the black plug. Plug in the TV and press the power switch Yes Replace Fan B Does the TV power up and stay on? No Replace The A board Slide #61 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 Audio SOS Defective Board (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection A Board, Pinched speaker wire, Speaker Start Here Unplug the TV and disconnect connectors A11 and A12 from the A board (See picture on the left). Plug in the TV and press the power switch Yes If the speakers wires are not pinched, Replace the speaker Does the TV power up and stay on? No Replace the A board Slide #62 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 Communication Error between IC8001 and IC1100 Defective Board (Possibility) Warning: Disconnect AC Power prior to making any disconnection or connection A Board Replace the A board Slide #63 No Power Flowchart Start Here Trouble Mode Defective Board (Possibilities) Dead/No power P, A, C1, K, S No Do the AC relays click after pressing the power switch? Yes Place your voltmeter on pin 11 of connector P25 and press the power switch Unplug the TV and remove connectors P6 and P25 on the P board and C11 on the C1 board. Connect the TV and press the power switch. No Unplug the TV and reconnect P6 and P25 only. Plug in the TV and press the power switch Yes Do the relays click? Replace The A board Yes Is there 3.2V at pin 6 of connector P7 on the P board when the power button is pressed? Replace The P board If connections between A6 and P7 are OK, replace the P board No No Do the relays click? Replace The P board Yes Yes No Is there 3.2V present? Unplug the TV and reconnect C11. Disconnect C14 on the C1 board and plug in the TV. Press the power switch If connections between P25 and A25 are OK, replace the A board No Unplug the TV and remove the metal plate covering the A board. Reconnect the TV Is there 5V Yes at pin 13 of connector A6 at plug in? Replace The GK board Yes Yes Replace The A board It the TV turning on with only half of the screen working? No Does the voltage at pin 8 of A1 changes from 4.7V to 0V when the TV’s power switch is pressed? If connections between A31 and C11 are OK, replace the C1 board No If connections between A1 and K1 are OK, replace the K and S boards Slide #64 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 direction ( + ), in reverse direction ( - ) How to exit: Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control. Slide #65 Self Check 1. Checks the communication IIC bus lines To ToAccess Accessthe theSelf-Check Self-CheckMode: Mode:Turn Turnthe theTV TVon onand andwhile whilepressing pressing“VOLUME “VOLUME( (- -)”)”button buttonon on the main unit, press the “OK” button on the remote control for more than 3 seconds. the main unit, press the “OK” button on the remote control for more than 3 seconds. TV volume down & OK on remote only does a basic IC self check. It does NOT clear any unit settings. It does not clear channel programmed settings, picture settings, channel labels, LOCK mode settings, or password. Using this method, it shows the unit firmware version (Peaks 1.050 and GenX 1.00) and it checks IC communications ONLY. This is more useful to identify the firmware version without having to decode the info in the setup menu About/Version screen. To ToExit Exitthe theSelf-Check Self-CheckMode: Mode:Press Pressand andhold holdthe thePower Powerbutton buttonon onthe theTV TVfor for55seconds secondsoror disconnect disconnectthe theAC ACcord cordfrom fromthe thewall walloutlet. outlet. Slide #66 Reset Procedure Note: All customer programmed parameters will be erased. Reset forces the TV to factory shipment setting. To reset the TV: 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. Slide #67 SOS History A history of SOS occurrences can be found under the Version Menu. 3 4 1 2 To Enter: 1. Press the “Menu” button 2. Select “Setup” (Go to the 2nd page) 3. Select “About” 4. Select “Version” The first 5 numbers out of the two 5-digits groups to the right of “Status2” are used to determine the SOS history. 0 0 0 Latest last before last 0 0 After After shipping, shipping, Sec. times First. times Slide #68 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. All over the screen 3. Adjustment after PCB exchange 1) After exchanging the following boards, voltage adjustment is required. P board, SC board, SS board => Please refer to “Service Manual”. Slide #69 Picture Problem Troubleshooting Start Where is the symptom displayed? Upper or Lower half Some part of the screen Upper half *Note :Panel gas leakage SU Board (or A, or SC) Lower half (from front view) SD Board (or A, or SC) Both area SC Board (or A) Right half A Board (or C1, or Panel) Left or Right half (from front view) Left half A Board (or C2, or Panel) Because of a very small crack in the panel, gas leakage will start. In this picture, gas leakage started at the left top corner. Finally, gas leakage will lead to the symptom “No picture with buzz noise”. Slide #70 The End Slide #71