Panasonic GPF9D, GPF10D, TH-103PF9UK, TH-103PF10UK Troubleshooting Handbook

Technical Guide

Model : TH--

Model : TH

TH--

TH

(GPF9D and

Troubleshooting Handbook

103PF9UK

103PF10UK

103””

103

GPF10D

Plasma

Chassis)

Panasonic Services Company

National Training

This page is purposely left blank.

2

Table of Contents

Subject Page

Introduction 4 AC Power Requirement 5 Rear Cover Removal 6 Chassis Structure 7 Chassis Layout 8 Board Description 9 Troubleshooting Display (Distortion) Problem 10-18 Relation of Board and Display Area 11 Troubleshooting for No Power 19-21 Shutdown (SOS) Troubleshooting 22-46 List of LED Blink Codes 23 Power LED blinks 1 time 24 Power LED blinks 2 times (SS Side) 25 Power LED blinks 2 times (SC Side) 26 Power LED blinks 3 times 27

Subject Page

Power LED blinks 8 times 42 Power LED blinks 9 times 43 Power LED blinks 10 times 44 Power LED blinks 11 times 45 Power LED blinks 13 times 46

Alignment (Adjustment) Procedure Self-check Procedure How to reset the unit How to enter the CAT (Computer Aided Test) Mode How to enter the IIC mode How to access the pattern generator How to enter the CD Mode How to enter the MS Mode

47-53 54 55 56 57 58 59 60

Power LED blinks 4 times 28 Power LED blinks 5 times 29-34 Power LED blinks 6 times 35-36 Power LED blinks 7 times 37– 41

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. Troubleshooting shutdown problems

5. 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”.

4

AC Power Requirement

Note

1)

Caution!

1)

Caution!

This PDP uses a 240V source and consumes 1,500W of power .

Check the customer’’

Check the customer

2)Maintenance space!

A minimum space of 700mm is needed at the rear of the unit

for installation.

3)Please check

maintenance contract.

with the Sales company

s AC power source.

for the service and

5

Back Covers

The unit contains 6 back covers that provide access to different areas of the board assembly.

Zone Board

A

B PB, DS, HX, HA, DN,

D D, CD×2, Ｃ4 C P, CX E P, F, C9 F SS, SS2, SS3, DR1/2

B＋C FAN, CD D＋E FAN, CD, PC A＋B C2 D＋F C5 A＋C CY, SC2

E＋F C8

SC, DR1/2,,SU, SM, SD C1, CZ, FAN

HDD, CD, C3

C6, C7, FAN

6

Chassis structure

C1 C2 C3

DR1 DR2

SU

HA HX

HDD

SM

SC

SD

DR2

C4

CD CD CD

DS

P1・P2 P1・P2

DN D

CDCDCD

C5

DR1

C6

SS2

SS

SS3

CZ

C9CXCY

C8

C7

The 103” plasma display television contains many more boards than the smaller size

plasma display models that are on the market today. It contains:

1. Two P boards (power supply)

2. Twelve C boards (data drive)

3. The SM board is added to complement the SU and SD of current model.

4. There are four DR boards added to the unit, one at each corner

5. There is the DS board that connects the HX, HA, and HDD to the DN board.

7

Chassis Layout

8

Board Description

Board Name Function Board Name Function D Digital Signal Processor, Format Converter, Plasma

AI Processor Sub-Field Processor

DS Slot Interface (Audio / Video / Sync Input Switch),

SYNC Processor, Audio Processor, Speaker Out Amplifier, DC-DC Converter

SS Sustain Drive V2 Key Scan SC Scan Drive V3 Remote control Receiver SC2 DC-DC Converter For Scan Drive PB Fan Control SU Scan Out (Upper) P(SUS_1/2) Power Supply SM Scan Out (Middl e) P(MULTI_1/2) Power Supply SD Scan Out (Lower) F Line Filter C1 Data Drive (1) PC Power Control C2 Data Drive (2) HX PC / RS-232C

CX Data Drive (X) CY Data Drive (Y) CZ Data Drive (Z) H5 Audio Out S1 Power Switch SS2 Sustain Out (Uppe r) SS3 Sustain Out (Lower) V1 LED_G, R

C3 Data Drive (3) HA BNC Component Video C4 Data Drive (4) DN Digit al Signal Processor, Micon C5 Data Drive (5) HDD DVI-D Terminal C6 Data Drive (6) CD C Board / D Board Connection C7 Data Drive (7) DR1 Energy Data Recovery C8 Data Drive (8) DR2 Energy Data Recovery C9 Data Drive (9)

9

Troubleshooting Display Problem

Troubleshooting

Display Problem

10

Relation of board and display area

DR2 DR1

Example of picture problems due to a defective board

D board

R L

SS2

SS

SS3

C6 C1C4

C7 CZC9 CYCXC8

CDCDCD

C2C3C5

SU

SM

SC

SS

(all)

SD

CDCDCD

DR1(1/4 of lower left) DR2(1/4 of lower right)

D( Left half)

D,DN, slot all

DR1(1/4 of upper Right)DR2(1/4 of upper Left)

C1C2C3C4C5C6

SU

SC

SM

(all)

SD

CZCYCXC9C8C7

D( Right Half )

DR1 DR2

11

Picture Trouble(1)

■Picture trouble（Vertical line all area, horizontal line, Color problem, Others）

HDD

DVI Input

HA

Video Input

HX

PC Input

■Sample

DS

Video Signal SW

LVDS Convert

Ａ/D Convert

Picture

Signal

Processing

Micro

Computer

DN

OSD

I-P

Convert

Resize

OSD

TEST

LVDS Convert

Micro

Computer

Convert

LVDS

・

Discharge

Control

EEPROM

Panel block

Ｄ

Picture data

Sub Field

Data

(Left half)

Test Pattern

Sub Field

Data

(Right half)

Test Pattern

Discharge control（ＳＣＡＮ） Discharge control（ＳＵＳ）

Picture data

■Flowchart for vertical line problem

Picture data

ＣＤ

ＳＣ

Picture data

ＣＤ

Picture data

Picture Trouble

ＣＤ

ＳＵ

ＳＭ

ＳＤ

ＣＤ

Ｃ

1

ＣＤ

Ｃ

ＳＳ２

6

ＳＳ

ＳＳ３

7

2

3

4

5

Ｃ

CXCYCZ

8

9

Thin horizontal line

Thin vertical line at all screen

Discolor picture (No green)

Horizontal line noise at half side (right)

Noise picture

Discolor picture (No blue)

Enter the service

mode to display the test pattern. Are there

vertical or horizontal lines?

Yes

D board

Note: The white test pattern, that contains numbers, is generated by the DN board. Press the OK button of the remote control to display subsequent patterns generated by the D board.

If you cannot enter the test pattern, unplug the connector D5 of the D board to obtain a white raster.

No

ＤN board

12

Picture Trouble(2)

■Picture trouble（Vertical line at part of screen, abnormal picture) Normal sound

Micro Computer

Convert

Picture

LVDS

signal

Control discharge

ＲＲＯＭ

■Trouble sample

Ｄ

Picture data

Sub Field

Data

(Left half)

Test Pattern

Sub Field

Data

(Right half)

Test Pattern

Discharge control（ＳＣＡＮ） Discharge control

（ＳＵＳ）

Picture data Picture data

ＣＤ

ＳＣ

Picture data

ＣＤ

ＳＵ

ＳＭ

ＳＤ

ＣＤ

ＤＲ１ＤＲ２

ＣＤ

Ｃ2

Ｃ3

Ｃ1

Ｃ4 Ｃ5

ＣＤ

ＤＲ２ＤＲ１

C1-CZ

Module

Ｃ6

Ｃ7Ｃ8Ｃ9CXCYCZ

ＳＳ２

ＳＳ

ＳＳ３

Convert sub field

Convert parallel serial

Test pattern

ＣＤＣＤＣＤ

Buffer Buffer Buffer

Ｃ１Ｃ２Ｃ３Ｃ４

180

Lines

Convert sub field

Convert parallel serial

Test pattern

Ｃ５

・・・・・・・・・・・・・

PANEL

・・・・・・・・・・・・・・･･･・・

SU,SM,SD

Module

Ｃ６

DriverDriver

Driver

Through vertical thin line

D module

Interval vertical thin line at half of panel

Abnormal picture at half

1/4 abnormal

CD Module

DR1,2

Module

Vertical bar for 180 lines

Vertical bar for 360 lines

Thin vertical line

13

Plasma panel

D,SC

Module

Plasma panel

or

Ｄ module

Picture Trouble(3)

Picture Data Picture Data

Picture Data

ＶＦ

ＶＦ０

ＳＣ

Scan control

Picture Data Picture Data

Picture Data

Picture signal

Micro Computer

Convert LVDS

Control discharge

PROM

Ｄ

Sub Field

Data

(Left half)

Test Pattern

Sub Field

Data

(Right half)

Test Pattern

Discharge control

（ＳＵＳ）

ＣＤ

ＳＩＵ

ＳＩＤ

ＣＤ

ＶＦ

ＶＦ０

ＳＵ

ＳＭ

ＳＤ

San Drive

ＤＲ１ＤＲ２

ＣＤ

Ｃ

1

2

3

4

Ｃ

CXCYCZ

9

ＣＤ

ＤＲ２ＤＲ１

Ｃ

5

6

ＳＳ２

ＳＵＳＤＲＶ

ＳＳ

ＳＳ３

Ｃ

7

8

■Trouble sample

●Horizontal line at part of screen

Thin horizontal line

Horizontal bar same as board width.

SU,SM,SD

Module

●Abnormal Discharge

SC,D

Module

14

Summary of Picture Trouble and Defective Board

Diagnosis of board defect

C1-CZ board

DR1 Or

CD board

DR2 board

C/CD/D board

SU/SM/SD board

SU/SM/SD board Or Panel

Colored vertical bar

SU/SM/SD board

15

D board

Picture Trouble all Area

Picture trouble

Do all the video

Inputs provide the symptom?

All input sources

What is the

symptom?

Abnormal

discharge

all area

No

Group of vertical line

Video or PC

DVI

Video

PC

Do the

Internal Test

Patterns

provide the

same

symptom?

NG

DN or DS board

HDD board

HA board HX board

OK

Is the OSD

visible on

screen?

NG

OK

DN board

SC/SS board

SU/SM/SD

board

D board

16

D or DN

board

Ex.RGB input（No red)

Picture Trouble (3)

No picture, green power LED

is lit.

Did the power

relay click on?

No

Yes

Is there video

from any of

the inputs?

If there is no video from

No

Is there O.S.D?

Yes

NG

Disconnect CN D5 and turn the

unit ON. Does a white pattern

appear on screen?

No picture

Replace the P or D board

Video or PC

Replace the DN or DS board

DVI

Replace the HDD board

Video

Replace the HA board

PC

Replace the HX board Replace the DN board

Disconnect the SU,SM, and

SD boards one at a time from

the SC board. Does 2/3 of a

picture appear?

Yes

SU or SM or SD board

Yes

DN board

No

SC or SS or SD

17

Picture Trouble (Vertical line) (1)

Panel (IC driver) defect

PDP panel

Thin line

Abnormal

Data Driver

IC

Data Driver

Abnormal

IC

C or CD circuit defect

PDP panel

15cm approx.

Abnormal

Data Driver

IC

Data Driver

IC

Buffer IC

(RGB)

Data driver IC defect = PDP panel defect

18

C boardC board

CD board

D board

Buffer IC

(RGB)