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21

1. Subject

Information of LED Flashing timing chart.

2. Contents

When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the 
defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.

* Use SC jig to isolate the board.

Blinking Times

Contents

Check point

1

Panel information SOS
PD Start SOS

-

2

P15V SOS 

A-Board
P-Board

6

Driver SOS1
(SC Energy recovery circuit)
(A-SC FPC DET)

SC-Board

A-SC FPC

7

Driver SOS2
(SU/SD Connector DET)
(SU/SD Scan and Logic IC)

SU-Board
SD-Board

*

8

Driver SOS3
(SS FPC DET)
(SS Energy recovery circuit)

SS-Board

SS2-Board

SS FPC

SS2 FPC

9

Discharge Control SOS

A-Board

10

Sub 3.3V SOS
Tuner power SOS

A-Board

SC-Board
SS-Board

P-Board

11

Fan SOS

A-Board

12

Sound SOS

A-Board
Speaker

Woofer

13

Emergency SOS

A-Board

22

First check point
There are following 3 states of No Power indication by power LED.

1. No lit
2. Green is lit then turns red blinking a few seconds later. (See Power LED Blinking timing chart)
3. Only red is lit.

Check that the following  LEDs on the SC and SS-Board.

Power recovery LED

LED for check

SC

D16583

SS

D16254A

23

Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area.

Fig-1

24

Purpose:
To find the failure board (SC or SU/SD) when the power LED is blinking 7 times.
SC jig:
Jumper connector to connect to SC50 connector on SC board
Part number:
TZSC09187
How to use:
Caution: Remove SC jig from SC board after inspection.

1. Remove the 3 VFG screws from SU and SD board.
2. Remove all connector between SC board and SU/SD board to isolate SC board from both SU and SD board electrically.

Note: The board will be damaged if all connector is not removed (for example; remove connector only for SU board and stay 
connecting with SD board. The board will be damaged.)

3. Connect SC jig to connector SC50 at left bottom side of SC board
4. Turn on the TV/Display Unit and confirm the power LED blinking.

LED blinking: Possible cause of failure is in SC board
No LED blinking (Lighting or no lighting): Possible cause of failure is in SU or SD board

5. After inspection, turn off the TV/Display Unit and wait a few minutes to discharge.
6. Remove SC jig from SC board.

Remark: This SC jig can be used for all 2013 Plasma TV and Plasma Display.