Panasonic TCP50GT30 50" inch Viera GT30 1080p full HD 3D plasma H Logo
ron briggs Posted on May 05, 2016
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Asking how to test for a defective board on a viera with the 7 blinking lights.....already replaced the power supple and still have 7 blinks?

Hi...7 blinks of *****.....replaced the power supply board...same thing....how can i test to find other issues? TY

1 Answer

Sp Gupta

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  • Panasonic Master 727 Answers
  • Posted on May 05, 2016
Sp Gupta
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Blinking red power light on a Panasonic Viera 47 in. plasma

No sure how many blinks you have but here are the blink error codes and the common boards failures for each
Blinking Times Contents Check point
1 Panel SOSPanel
3 P+ 3.3V SOS A-Board
4 Power SOS P-Board
5 P+ 5V SOS A-Board
6 Driver SOS1SN-Board
7 Driver SOS2SN-Board
8 Driver SOS3SS-Board
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7 blinking lights

I had the same problem with my Viera. if you disconnect the power and ribbon cable from the YSUS board (check youtube for how), the light led will blink 6 times, indicating the YSUS is bad. Check ebay for TNPA5175 board (about $115-160). If you heard it, The "pop" is one of the DG402RP chips burnout. These are about $4, but only available from China. If you can wait a month for delivery, you can solder the new one to replace the bad one. You may want to purchase several in case more are bad or it happens again.
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I had the same problem with my Viera. if you disconnect the power and ribbon cable from the YSUS board (check youtube for how), the light led will blink 6 times, indicating the YSUS is bad. Check ebay for TNPA5175 board (about $115-160). The "pop" is one of the DG402RP chips burnout. These are about $4, but only available from China. If you can wait a month for delivery, you can solder the new one to replace the bad one. You may want to purchase several in case more are bad or it happens again.
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I had the same problem with my Viera. if you disconnect the power and ribbon cable from the YSUS board (check youtube for how), the light led will blink 6 times, indicating the YSUS is bad. Check ebay for TNPA5175 board (about $115-160). The pop is one of the DG402RP chips burnout. These are about $4, but only available from China. If you can wait a month for delivery, you can solder the new one to replace the bad one. You may want to purchase several in case more are bad or it happens again.
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I have replaced the p board and sc boards in this panasonic tc-p50s30 viera tv and still have the 7 red blinks? what else can be wrong?

7 blinks is indicate for faulty power supply however if you already replace it the possible problem is on main board..
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No picture and power light blinks 7 times on my viera tc-p50st30 plasma tv when it is turned on

That can be caused by either the SC or SD board. Contact the people at www.tvrepairworld.com they can assist with proper diagnosis and they also should have the replacement board
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Th42px60u

Most likely is the power board,so I hope you got a good one! The next would be a short on the SC board. The main digital board could be defective in mis diagnostic. Disconnect the SC board and see if the blink code changes. if it changes,the main board is good. If you have a good power board,I vote for a short on the SC board to be checked
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Bought in Dubai 3 years ago Pan.Viera LCD 32"\r\nStandby light flashing red/green. Have to switch on with on/off button after a few minutes switches off itself..........then back on itself

Power LED Blinking timing chart
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.
blinking

1 dg board, (stv 5v sense time out)
2 d board
3 d board
4 p board
5 d board
6 su sd sc boards
7 su sd sc boards
8 ss board
9 panel config
10 digi board-
11 pb board
12 h board
13 dg board

Tom Miller
Broadcast Eng
6helpful
2answers

Panasonic viera tv won't turn on. Power light

hello, you have a either your su, sd or sc boards fualty and it is a driver sos1 thats what the manual reads the best thing to do if your not electronically inclined or able to fix it is to get a service manual and make sure it is for your specific model and size you will find what the 7 blink codes mean, on my side i have a 42 in pana the service manual for this set and your is similar so since it is not the same model i cant tell you exactly what the truoble is but your best bet is to find a service manual find the 7 blink fualt then without getting ripped off you will know what the service man needs to do if you dont know or cant replace the parts yourself that is besides having to download firmware from your computer to a sd card and update your set but you need to solve the blinking code first it may solve the entire issue. the tv should come on when you resolve the blink codes or replace the fualty board or boards
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The power light keeps blinking and it doesnt matter if i unplug the tv and plug it back in when i go to turn it back on it just blinks.

the blinking power light is actually a diagnostic of a faulty part inside the set.

Here is the diagnostic info and which part you need to replace.

1 blink STV 5v sense DG Board

2 blinks 15v SOS D Board

3 blinks 3.3v SOS D Board

4 blinks Power SOS P Board

5 blinks 5v SOS D Board

6 blinks Driver SOS 1 SU / SD / SC Boards
(SC energy recovery circuit)

7 blinks Driver SOS 2 SU / SD / SS Boards
(SC floating voltage area)

8 blinks Driver SOS 3 SS Board
(SS energy recovery circuit)

9 blinks Panel Config. SOS

10 blinks Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS

11 blinks Fan SOS PB Board

12 blinks Sound SOS H Board

13 blinks Communication error DG Board
with IC8001 (Pesks Lite 2)

if this set is still unedr warranty, please use the warranty to replace the part. Else, have a professional install the new part for your safety.

hope this helps.

regards,

voodoo
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