revised troubleshooting handbook - tv repair toronto ... · pdf filepanasonic service and ......

Slide #1

Panasonic Service and Technology CompanyNational Training

Revised Troubleshooting Handbook2009-Plasma HD and FHD TV (12th Generation)

Model TC-P42PX1

TC-P42X1TC-P50X1TC-P42C1TC-P50C1TC-P42S1TC-P46S1TC-P50S1TC-P54S1TC-P42U1TC-P46U1TC-P50U1

TC-P42G10TC-P46G10TC-P50G10TC-P54G10TC-P42G15TC-P46G15TC-P50G15TC-42PS14TC-50PS14TC-P50V10TC-P54V10

Applies to models:

TTG090507CP\REV091117

New 7 blinksTroubleshooting

Procedure

Slide #2

Prepared byCesar Perdomo

Panasonic Service and Technology CompanyNational Training

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.

Copyright ©

2009 by Panasonic Service and Technology CompanyAll rights reserved. Unauthorized copying and distribution is a violation of law.

"HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“

Slide #3

Table of ContentSubject Slide

Table of Contents 3 Introduction 4 HD Boards Layout (TC-P42X1) 5 Full HD Boards Layout (TC-42PS1) 6 Full-HD Connector’s Location (TC-P42S1) 7 Troubleshooting Shutdown Problems 8 Power LED’s Response to Shutdown Operation 9 Shutdown Detect Block Diagram 10 HD Panel Drive SOS Detect Block Diagram (TC-P42X1) 11 Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1) 12 Power LED’s Response to Connectors Removal (42” HD) 13 Power LED’s Response to Connectors Removal (42” HD) 14 Power LED’s Response to Connectors Removal (50” HD) 15 Power LED’s Response to Connectors Removal (Full HD) 16 Power LED’s Response to Connectors Removal (Full HD) 17 SU and SD board Isolation Procedure 18 Procedure to Isolate Bothe SU and SD at the Same Time 19 Procedure to Isolate Bothe SU and SD at the Same Time 20 SU Board Isolation Procedure 21 SD Board Isolation Procedure 22 How to Easily Gain Access to the SS board 23 Front Cabinet Removal 24 SU and SD Boards Isolation Procedure 25 SU, SD, and SC Boards Resistance Test Procedure 26 SU Board Resistance Test (All Models) 27 SD Board Resistance Test (All Models Except TC-50PX14, TC-P50X1, TC-P50C1) 28 SD Board Resistance Test ( Models: TC-50PX14, TC-P50X1, TC-P50C1) 29 SC Board Resistance Test (All Models Except TC-50PX14, TC-P50X1, TC-P50C1) 30 SC Board Resistance Test ( Models: TC-50PX14, TC-P50X1, TC-P50C1) 31 1 Blink Error Code (All Models) 32 2 Blinks Error Code (All Models) 33 2 Blinks Error Code (All Models) 34 3 Blinks Error Code (All Models) 35 4 Blinks Error Code (All Models) 36

Subject Slide 5 Blinks Error Code 37 5 Blinks Error Code (All Models) 38 5 Blinks Error Code (All Models) 39 5 Blinks Error Code Continue 40 6 Blinks Error Code (HD Models) 41 6 Blinks Error Code (42” HD Models) Flowchart 42 6 Blinks Error Code (50” HD Models) Flowchart 43 6 Blinks Error Code (Full-HD Models) 44 6 Blinks Error Code (Full-HD Models) Flowchart 45 7 Blinks Error Code 46 7 Blinks Error Code 47 7 Blinks Error Code 48 7 Blinks Error Code 49 8 Blinks Error Code (HD Models) 50 8 Blinks Error Code (HD Models) 51 8 Blinks Error Code (HD Models) Flowchart 52 8 Blinks Error Code (Full-HD Models) 53 8 Blinks Error Code (Full-HD Models) 54 8 Blinks Error Code (Full-HD Models) Flowchart 55 9 Blinks Error Code 56 10 Blinks Error Code (HD Models) 57 10 Blinks Error Code (HD Models) Flowchart 58 10 Blinks Error Code (Full-HD Models) 59 10 Blinks Error Code (Full-HD Models) Flowchart 60 11 Blinks Error Code (Full-HD Models) 61 12 Blinks Error Code (Full-HD Models) 62 13 Blinks Error Code 63 No Power Flowchart 64 Service Mode 65 Self Check 66 Reset Procedure 67 SOS History 68 Diagnostic Method for Troubleshooting PDP Television 69 Picture Problem Solution 70 The End 71

Slide #4

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 #5

HD boards Layout (TC-P42X1)

Slide #6

Full-HD boards Layout (TC-P42S1)

Slide #7

Full-HD Connector’s Location (TC-P42S1)

Slide #8

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 #9

Power LED’s Response to Shutdown OperationWhen 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 #10

Shutdown Detect Block Diagram

Slide #11

HD Panel Drive SOS Detect Block Diagram (TC-P42X1)

Slide #12

Full-HD Panel Drive SOS Detect Block Diagram (TC-P42S1)

Slide #13

Power LED’s Response to Connectors Removal (42” HD Models)

Model: TC-P42X1

Connector Connector Connector Result

A20 Unplugged

OK

A31 Unplugged SOS 6 Blinks


A20 Unplugged

A31 Unplugged OK

A20 Unplugged A32

Unplugged OK

A31 Unplugged


A20 Unplugged

A31 Unplugged

A32 Unplugged TV Stays On With Black Screen

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.

Slide #14


Model: TC-P42X1 (SS Board Isolation)


SS11 Unplugged

SOS 6 Blinks

SS3 Unplugged SOS 6 Blinks

SS23 Unplugged OK

SS11 Unplugged


SS11 Unplugged SS23

Unplugged SOS 6 Blinks

SS3 Unplugged


SS11 Unplugged

SS3 Unplugged


SC2 Unplugged

SC3 Unplugged

SC20 Unplugged

SS11 Unplugged

OK

SC2 Unplugged

SC20 Unplugged

SS11 Unplugged

OK

SC20 Unplugged

SS11 Unplugged

OK

Model: TC-P42X1 (SC Board Isolation)

Connector Connector Connector Connector

On SS board

Result

SC2 Unplugged

SOS 7 Blinks

SC3 Unplugged SOS 6 Blinks

SC20 Unplugged OK

SC2 Unplugged


SC2 Unplugged SC20


SC3 Unplugged


42”HD Models




disconnected.


CAUTION: The TV power should not be turned on while SC2 is disconnected. This

could damage the SS board.

Slide #15


Model: TC-P42X1 (SS Board Isolation)


SS11 Unplugged

SOS 6 Blinks


SS23 Unplugged OK

SS11 Unplugged


SS11 Unplugged SS23


SS3 Unplugged


SS11 Unplugged

SS3 Unplugged


SC3 Unplugged

SC20 Unplugged

SS11 Unplugged

SOS 6 Blinks

SC20 Unplugged

SS11 Unplugged

SOS 6 Blinks

SC20

Unplugged SS11


Model: TC-P50X1 (SC Board Isolation) Connector

On C1 board

Connector Connector Connector

On SS board

Result



SC3 Unplugged

SC20 Unplugged


C10 Unplugged SC20

Unplugged SS11

Unplugged OK

50”HD Models




disconnected.


CAUTION: The TV power should not be turned on while SC2 is disconnected. This

could damage the SS board.

Slide #16

Power LED’s Response to Connectors Removal (Full HD Models)

Model: TC-P42S1

Connector Connector Connector Results

A33 Unplugged

SOS 6 Blinks

A31 Unplugged Left Half of Screen is OK (Right Side is

Black)


A33 Unplugged

A31 Unplugged SOS 6 Blinks *

A33 Unplugged A32

Unplugged OK

A31 Unplugged


A33 Unplugged

A31 Unplugged

A32 Unplugged TV Stays On With Black Screen

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.


Slide #17

Power LED’s Response to Connectors Removal (Full HD Models)

Model: TC-P42S1 (SS Board Isolation)

Connector Connector Connector Results

SC20 Unplugged

6 Blinks *

SC2 Unplugged 7 Blinks *

SC20 Unplugged

SC2 Unplugged 6 Blinks *

Model: TC-P42S1 (SS Board Isolation)

Connector Connector Result

SS11 Unplugged

OK

SS33 Unplugged OK

SS11 Unplugged

SS33 Unplugged OK

Full HD Models

Model: TC-P42S1 Connectors Combination between SS and SC Boards)

SC Board SS Board

Connector Connector Connector Connector Result

SS11 Unplugged

SC2 Unplugged

7 Blinks

SS11 Unplugged

SC20 Unplugged 6 Blinks

SS11 Unplugged SC2

Unplugged SC20

Unplugged 6 Blinks

SS11 Unplugged

SS33 Unplugged


SS11 Unplugged

SS33 Unplugged SC20

Unplugged 6 Blinks

SS11 Unplugged

SS33 Unplugged

SC2 Unplugged


SS33 Unplugged


SS33 Unplugged SC20

Unplugged 6 Blinks

SS33 Unplugged

SC2 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.


Slide #18

SU and SD Boards Isolation Procedure

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, andSC42/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 #19

Procedure to Isolate both SU & SD at the Same Time

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 #20

Procedure to Isolate both SU & SD at the Same TimeIf 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 #21

SU Board Isolation Procedure

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)



Slide #22

SD Board Isolation Procedure

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)



Slide #23

How to Easily Gain Access to the SS board

SCREW

SCREW

SCREW

Remove the 3 screws that hold the A board assembly in place

Let the A board assembly rest on the speaker’s magnet to gain access to the SS board

1 2

Slide #24

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 #25

SU and SD Boards Visual InspectionCheck 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 #26

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 #27

SU Board Resistance Test (All Models)

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.

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.

Slide #28

SD Board Resistance Test (All Models, Except TC-50PX14, TC-P50C1, TC-P50X1)

Procedure:

Using a digital meter, measure the resistance between VF-ground (Floating ground) and pin 9 of connector SD42 on the SD board.


Note: A low resistance reading indicates a defective SD board.

Preparation:




Unplug connectors SD42, SD46 and SD11. Remove the 2 floating ground screws from the SD board.

Slide #29

SD Board Resistance Test ( Models: TC-50PX14, TC-P50C1, TC-P50X1)

Procedure:

Using a digital meter, measure the resistance between VF-ground (Floating ground) and pin 1 of connector SD42 on the SD board.


Note: A low resistance reading indicates a defective SD board.

Preparation:




Unplug connectors SD42, SD46 and SD11. Remove the 2 floating ground screws from the SD board.

Slide #30

SC Board Resistance Test (All Models, Except TC-50PX14, TC-P50C1, TC-P50X1)

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.

Preparation:




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.

Slide #31

SC Board Resistance Test ( Models: TC-50PX14, TC-P50C1, TC-P50X1)

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.

Preparation:




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.

Slide #32

1 Blink Error Code

Trouble Mode

Communication Error

Defective Board

A, P, Loose connections

Plug in the TV

Warning: Disconnect AC Power prior to making any disconnection or connection.

No Yes

Replace the A board

Is there 5V at pin 9 of

connector P25/A25?

Make sure that connectors P25 and D25 are properly seated

Replace the P board

Is there continuity between pin 9 of connector P25 and pin 5 of connector P7 on

the P board?

No Yes

Reseat P25/A25 or Replace the cable

Unplug in the TV

Start Here


Slide #33

2 Blinks Error Code (All Models)

Trouble Mode

P15V

Defective Board

A, SC, SS


1. Missing P15V

2. A short of the P15V

3. Wrong diagnostic by the A board

These 3 conditions can cause the TV to shutdown and the power LED to blink 2 times


Slide #34


No Yes

Reconnect P25 and measure the resistance between pin 1 of connector P6 and ground (Chassis)

Is there a short

circuit?

Unplug the TV and check the resistance between pin 1 of connector P6 and ground (Chassis)

Is there a short

circuit?

YesNoPlug in the TV and turn it on. Measure the voltage at pin 1 of connector P6

Is there 15V

present?

No Yes

ReplaceThe P board

ReplaceThe A board

Unplug connectors P6, P11, and P25 on the P board. Measure the resistance between pin 1 of connector P6 and ground (Chassis)

Is there a short

circuit?

No Yes

ReplaceThe P board

Reconnect P11 and measure the resistance between pin 1 of connector P6 and ground (Chassis)

Is there a short

circuit?

No YesReplace

The SS board

Disconnect SC20 on the SC board and measure the resistance between pin 1 of connector P6 and ground (ChassisReplace

The A board

Is there a short

circuit?

No Yes

ReplaceThe A board

ReplaceThe SC board


Start Here

Slide #35

3 Blinks Error Code

Trouble Mode

3.3V down SOS

Defective Board

A Board

Replace the A board


Start Here


Slide #36

4 Blinks Error Code

Trouble Mode

Power Supply SOS

Defective Board

Primarily P board or possible A board

No


A BoardP Board

Turn the TV on

YesIs pin

12 of CN P25 on the P board high

before the TV shuts down?

Does the power supply

makes a “chirp” noise at plug in?

Start Here

Yes No

Yes NoIs there a short to ground?

Replacethe SS board

Replacethe SC board

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).


All other 2009 ModelsTC-P42G10 TC-P46G10 TC-50G10 TC-P54G10

Measure the resistance between pin 1 of connector SC2 on the SC

board and ground (Chassis).

Replacethe P board

Start Here


Slide #37

5 Blinks Error Code

Trouble Mode

5V SOS

Defective Board

P, C, SC, SS board or PanelWarning: Disconnect AC Power prior to making any disconnection or connection.

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

These 4 conditions can cause the TV to shut down and the power LED to blink 5 times


Slide #38


Trouble Mode

5V SOS

Defective Board

P, C, A,SC, SS board or Panel

Disconnect the TV. Measure the resistance between pin 1 of connector P35 on the P


Yes

Proceed to more extensive troubleshooting of the slides that follow.

NoIs there a short to ground?

Panel

Note: Even though it does not happen often, the 5 blinks shutdowncan also be caused by

one of the C boards


Does the power supply

makes a “chirp” noise at plug in?

Start Here

Yes No


Replacethe SS board

Replacethe SC board

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).


All other 2009 ModelsTC-P42G10 TC-P46G10 TC-50G10 TC-P54G10

Measure the resistance between pin 1 of connector SC2 on the SC


Replacethe P board

Start Here


Slide #39


Disconnect the TV and measure the resistance between pin 5 of connector P25 on

the P board and ground (Chassis).

YesNo

Is there a short to ground?

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

Is there 5V?

Yes NoReplacethe A board

Replacethe P board

Disconnect P25 on the P board. Measure the resistance between pin 5 of connector P25 on

the P board and ground (Chassis).


Replacethe P board

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). Yes No

Is there a short to ground?

Replacethe SC board

Reconnect SC20 and disconnect SS23 (HD models)/SS33 (Full- HD models) on the SS board. Measure the resistance between pin 5 of connector P25 on the P board and ground (Chassis).

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).

YesNoIs there a

short to ground?

Replacethe SD board

Go to the next slide (A)


Replacethe SS board

Start Here


Slide #40

5 Blinks Error Code Continue

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).


Replacethe A board

Check the C boards (See Note: B)If the C boards are ok, replace

the Panel

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.


Slide #41

6 Blinks Error Code (HD Models)

Trouble Mode

SC Energy Recovery Circuit

Defective Board

SC, SS, A, SU,SD, and Loose connectionsWarning: 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

CAUTION: The TV power should not be turned on while SC2 is disconnected. This could damage the SS board.


Slide #42

6 Blinks Error Code (42” HD Models) Flowchart

No Yes

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

Does the TV power

up andstay on?

Replacethe SC board

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

Does the TV power

up andstay on?

NoYes

The SU or/and the SD Boardscan be defective. Follow

procedure on slides 17~21 to determine which of the 2 boards

is defective.

No YesDid the number of

blinks change?

Replacethe A board

No Yes Is the power LED still blinking?

Unplug the TV and with SC20 still disconnected, disconnect SS11 on the SS board. Plug in the TV and

turn it on.

Replacethe A board

Replacethe SS andA boards

6 times

8 times

Replacethe SS and SC

boards

LIST OF MODELS: TC-P42X1 TC-P42C1 TC-42PX14

Start Here


10 times

8 times

Replacethe SS board

6 times

10 times


Slide #43

6 Blinks Error Code (50” HD Models) Flowchart

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

Replacethe SC board

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

Does the TV power

up andstay on?

NoYes

The SU or/and the SD Boards can bedefective. Follow procedure on slides

17~21 to determine which of the 2 boardsis defective.

No YesDid the number of

blinks change?

Replacethe A board

Is the power LED still blinking?

NOTE: The SS board may had just become damaged (Shorted Vsus).

LIST OF MODELS: TC-P50X1 TC-P50C1 TC-50PX14

Start Here

10 times


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

Replacethe SS board8 times

6 times

Replacethe SS andSC boards

No Yes 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

Is the power

LED still blinking?

No Yes

Replacethe SS andA boards


Slide #44

6 Blinks Error Code (Full-HD)

Trouble Mode

SC Energy Recovery Circuit

Defective Board

SC, A, SU,SD, and Loose connections


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 #45

6 Blinks Error Code (Full-HD Models) Flowchart

No

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 Did the number of

blinks change?

Is the power LED

still blinking?

Replacethe A board6 blinks8 blinks

6 blinks

8 blinks

Replace the Aboard

No Yes

Replace the SS

Start Here

LIST OF MODELS TC-P42S1 TC-P42G10 TC-P42U1 TC-P42U1 TC-42PS14 TC-P46S1 TC-P46G10


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

Replacethe SC board

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

Does the TV power

up andstay on?

NoYes

The SU board or/and the SD boardcan be defective. Follow

procedure on slides 17~21 to determine which of the 2 boards

is defective.


Slide #46


Preparation:




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.

Trouble mode Defective Boards (Possibility)

SC Floating Section SOS SU, SD, SC, A, P, & Panel

7 Blinks Error Code (1 of 4)

LIST OF MODELS:

All 2009 Models

Slide #47

Board Result

SU OK

SD OK

SC OK

Board Result

SU Bad

SD OK

SC OK

Board Result

SU OK

SD Bad

SC OK

Board Result

SU OK

SD OK

SC Bad

Board Result

SU Bad

SD Bad

SC OK

Board Result

SU Bad

SD OK

SC Bad

Board Result

SU OK

SD Bad

SC Bad

Board Result

SU Bad

SD Bad

SC Bad

A B C DA B C D

Follow this procedure if the SU board and/or the SD board are bad while the SC board measures OK

Follow this procedure if the SU board and/or the SD board are bad while the SC board is also bad

Follow this procedure if only the SC board is bad

Follow this procedure when all 3 boards check OK

Replace the SU, SD, and SC boards

Replace the SC board.

Go to the next slide

Go to the Slide #16

1. Remove the front cabinet and check for cracks and blown pixels. (For front cabinet removal procedure go to slide 24). 2. Check the ICs on the SU and SD boards for blown hole on the surface. (Go to slide 25 to see pictures)3. 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.

Start Here

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.

Slide #48

YesReplace the SU, SD, and SC boards

Follow the SU/SD boards isolation procedure shown on slides 18, 19, and 20. Plug in the TV and press the power

switch

NoReplace the SU

and the SD boards.

Does the TV shut down and the power

LEDblink 7 times?

AStart Here



Slide #49

D

Yes

Yes

Replace the A board.

No

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.

Did the number of

blinks change?

Follow the SU/SD boards isolation procedure shown on slides 18, 19, and 20. Plug in the TV and press the power

switch

Any other number of blinks besides 10 and 6.

6 times

10 times

Replace the SC board.

Does the TV shut down and the power

LEDblink 7 times?

7 times

Start Here

No

Replace the SU and the SD

boards.

Replace the SC and the A

boards.

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.

Is there a short circuit?

Yes NoUnplug SS11 and measure the resistance between pin 1 of SC2/P2 (Vsus) and ground.


YesNo

Replace the SSAnd SC boards

Replace the SCand A boards

Replace the Pand SC boards

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.



Replace the SC board. LED stays ON TC-P42X1

Slide #50


SS_Flexible Printed Circuit (FPC)_Detect (SOS8_SS) (TC-P42X1)


Slide #51


50” HD

42” HD

Trouble Mode

Driver SOS3/SS_FPC_Detect

Defective Board

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.

ANODE

CATHODES

D285(D16285)


Slide #52

8 Blinks Error Code (HD Models) Flowchart

No Yes

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

Does the TV power

up andstay on?

Replacethe 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

No Yes Does the TV power up and

stay on with the SC LED on?

Replacethe P board

Note: Before replacing the panel,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.

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 No Is there

approx. 7.2V at the anode of D285 on

the SS board?

Replacethe panel

ReplaceSS board


No YesDid the

number of blinks

change to 6 or 7 blinks? Replace

the A board8 blinks

Start Here



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.

Slide #54

8 Blinks Error Code (Full-HD Models)

Trouble Mode

Driver SOS3/SS_FPC_Detect

Defective Board

SS, A, SS2, P, and Loose connectionsWarning: Disconnect AC Power prior

to making any disconnection or connection.

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.

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.

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 50” & 54” FHD

Note: D280 (D16280 on the Service Manual) is located less than inch away from the right side of connector SS33

D280 CATHODE

ANODE

(D16280)


Slide #55

8 Blinks Error Code (Full-HD Models) Flowchart

No Yes

Yes No

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

Does the TV power

up andstay on?

Is there approx. 4V at the anode of D280 on the SS board?

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

Replacethe A board

Replacethe SS board

Replacethe panel

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

No YesDoes the TV power up and

stay on with the SC and SS LED

on?Replace

the P board

No YesDid the

number of blinks

change to 6 or 7 blinks?

8 Blinks

Replacethe A board

Start Here


Slide #56

9 Blinks Error Code

Trouble Mode

Panel Status/Communication

Defective Board

A Board

Replace the A board.

Warning: Disconnect AC Power prior to making any disconnection or connection


Slide #57


Trouble Mode

F-STB15V, SUB9V, SUB5V, BT30V

Defective Board

A, P, Loose connections


Make sure that connectors P6/A6 is properly seated

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.

What can possibly cause 10

blinks

A. Missing/Shorted F_15V

B. Shorted Vsus

C. Missing/Shorted SUB5V, SUB9V, BT30V.

D. IC1100, IC9003, IC9004

E. Possibly SU and SD boards

AB B

C

DD

D

C


Slide #58

10 Blinks Error Code (HD Models) Flowchart


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 switchUnplug SS11 and

measure the resistance between pin 1 of SC2/P2

(Vsus) and ground.

Unplug the TV. Measure the resistance between pin 1 of P2/SS2 or P11/SS11 (Vsus) and ground.


Yes No


YesNo

Replacethe SS board(See Note 2)(See Note 3)

Unplug SC2 and measure the

resistance between pin 1 of P2/P11

(Vsus) and ground.


YesNo

Replacethe SC board(See Note 2)(See Note 3)

Replacethe P board


connector P6 at the moment

the relay clicks ?

NoYes

Replacethe A board

Note 2: If the SS or SC board fail repeatedly with shorted Vsus, replace the A board also.

Disconnect the TV and unplug connector A1. Plug in the TV. Ground pin 8 of connector A1

momentarily.

Replacethe P board

Yes NoDoes the TV power

up andstay on?

Replacethe K board

Note 3: If after replacing the SS or SC board the blinking pattern changes, replace the A board also.

Start Here



Slide #59

10 Blinks Error Code (Full-HD Models)

Trouble Mode

F-STB15V, SUB9V, SUB5V, BT30V, Shorted Vsus

Defective Board

SS, P, A, SC, SU, SD, KWarning: Disconnect AC Power prior to

making any disconnection or connection.

Make sure that connectors SC20/A33, SC2/P2, P6/A6 are properly seated

What can possibly cause 10 blinks

A. Missing/Shorted F_15V

B. Shorted Vsus

C. Missing/Shorted SUB5V, SUB9V, BT30V.

D. IC1100, IC9003, IC9004

E. Unplugged SC20, SC2

F. Possibly SU and SD boards

AB B

C

DD

D

E

E

C


Slide #60

10 Blinks Error Code (Full HD Models) Flowchart

Leave SS11 and SS33 unplugged. Remove connectors SC2, SC20 on the SC board. Then

plug in the TV and press the power switch

Unplug the TV and remove connectors SS11 and SS33 from the SS board. Plug in the TV and press the power switch

Does the TV power up and

stay on?

NoYes Note: If the TV does not turn on at all, unplug it and leave it unplugged for 3 minutes.

Replacethe SS board(See Note 2)

Did the number of

blinks change?

NoYes

Replacethe SC board

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

Does the TV power

up andstay on?

NoYes

Unplug the TV and reconnect connectors SS11, SS33, SC2, and SC20. Plug in the

TV and press the power switch

NoYes

Replacethe P board

LIST OF MODELS TC-P42S1 TC-P42G10 TC-P42U1 TC-P42U1 TC-42PS14 TC-P46S1 TC-P46G10


6 blinks

10 Blinks

Replacethe A board

Disconnect the TV and unplug connector A1. Plug in the TV. Ground pin 8 of connector A1 momentarily.

Yes NoDoes the TV power

up andstay on?

Replacethe K board

Any other

blinking code

Replacethe A board

Note 2: If the SS or SC board fail repeatedly with shorted Vsus,

replace the A board also.


connector P6 at the moment

the relay clicks ?

Start Here

The SU or/and the SD Boards can bedefective. Follow procedure on

slides 17~21 to determine whichof the 2 boards is defective.

No


Slide #61

11 Blinks Error Code (Full-HD Models Only)

Trouble Mode

Fan SOS

Defective Board (Possibility)

Fans, A Board, ConnectionsNOTE A: Use a piece of wire, the size of a ¼ watt resistor’s leads as a jumper.

Fan Connector

FanConnector

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 switchA B

Does the TV power

up andstay on?

NoYes

ReplaceFan A

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

Does the TV power

up andstay on?

NoYes

ReplaceFan B

ReplaceThe A board

JUMPER WIRE

FAN CONNECTOR

BLACK PLUG


Make sure that connector A30 is properly seated

Start Here


Slide #62

12 Blinks Error Code Flowchart

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

Does the TV power

up andstay on?

NoYes

If the speakers wiresare not pinched,

Replacethe speaker

Replacethe A board

Trouble Mode

Audio SOS

Defective Board (Possibility)

A Board, Pinched speaker wire, Speaker


Start Here


Slide #63

13 Blinks Error Code

Trouble Mode Defective Board (Possibility)

A Board


Communication Error betweenIC8001 and IC1100

Replace the A board


Slide #64

No Power Flowchart

Do the AC relaysclick after pressing the

power switch?

Do the relays click?

If connectionsbetween A31

and C11 are OK,replace the

C1 boardReplaceThe P board

ReplaceThe GK board

Yes

Yes

Yes

Yes

Yes

No

No

No

Trouble Mode

Dead/No power

Defective Board (Possibilities)

P, A, C1, K, S

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.

Unplug the TV and remove the

metal plate covering the A

board.Reconnect the TV

Unplug the TV and reconnect P6 and P25

only. Plug in the TV and press the power switch

Unplug the TV and reconnect C11. Disconnect C14 on the C1 board and plug in the TV.

Press the power switch

It the TV turning on with onlyhalf of the screen

working?

No

No

Do the relays click?ReplaceThe A board

Is there 3.2V present?Yes NoReplace

The P board

If connections between P25 and A25 are OK,replace the A board

Is there 5Vat pin 13 of connector

A6 at plug in?

YesNoIf connections between A6 and P7 are OK,

replace the P board

Does the voltage at pin 8 of A1

changes from 4.7V to 0Vwhen the TV’s power switch

is pressed?

Yes No

ReplaceThe A board

If connectionsbetween A1

and K1 are OK,replace the

K and S boards

Is there 3.2Vat pin 6 of connector P7 onthe P board when the power

button is pressed?

Start Here

Slide #65

Service ModeTo Enter the Service Mode:

While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.

How to exit:Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

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 ( - )

Slide #66

Self Check1. Checks the communication IIC bus lines

To Access the Self-Check Mode: Turn the TV on and while pressing “VOLUME ( - )” button on the main unit, press the “OK” button on the remote control for more than 3 seconds.

To Access the Self-Check Mode: Turn the TV on and while pressing “VOLUME ( - )” button on the main unit, press the “OK” button on the remote control for more than 3 seconds.

To Exit the Self-Check Mode: Press and hold the Power button on the TV for 5 seconds or disconnect the AC cord from the wall outlet.

To Exit the Self-Check Mode: Press and hold the Power button on the TV for 5 seconds or disconnect the AC cord from the wall outlet.

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.

Slide #67

Reset Procedure

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.

Note: All customer programmed parameters will be erased.

To Exit:Disconnect the AC cord from wall outlet.

Slide #68

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.

SOS HistoryA history of SOS occurrences can be found under the Version Menu.

0 0 0 0 0Latest last before

lastAfter

shipping, Sec. times

After shipping, First. times

1 2

3

4

To Enter:

Slide #69

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 #70

Picture Problem Troubleshooting

Where isthe symptom

displayed?

*Note :Panel gas leakage

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”.

Start

Upper or Lower half(from front view)

Upper half

Lower half

Both area

SU Board (or A, or SC)

SD Board (or A, or SC)

SC Board (or A)

Right half

Left half

Left or Right half(from front view)

A Board (or C1, or Panel)

A Board (or C2, or Panel)

Some part of the screen

Slide #71

The End

revised troubleshooting handbook - tv repair toronto ... · pdf filepanasonic service and ......

Documents