Question about Panasonic TCP54G25 54 in HDTVReady Plasma TV

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Panasonic TC-P54G25 plasma hdtv won't turn on. Power light blinks 4 times repeatedly.

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Perhaps an easy fix. Remove the back of the flat screen. There will be a main circuit board visible. There will be several capacitors, cylinders with a cross hatch on the silver top. Do any of them look like they have a dimple created by expansion of the internal capacitor material over heating? If you see an expanded top...that's probably your problem. Get your solder gun out and replace that capacitor. You can order a new one off of Amazon. If yours is a 10 volt capacitor, consider replacing it with a 16 volt unit. Generally the electronics companies under design the size of these units. When you replace the capacitor take note of the silver band on the unit and where its placed in the two socket holes....there is a positive and negative hole placement.

Posted on Jan 03, 2011

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4 blinks in the Service manual indicate the Power board, AKA "Power SOS P-Board". Part number ETX2MM897ASH.

Posted on Jan 29, 2015

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  • Panasonic Master
  • 467 Answers

It is most likely a protection circuit which has cut in, preventing the set from starting up.
This could also be due to either one or more of the following (but not limited to any one):

(a) Microprocessor/EEPROM issue;
(b) inverter board could be defective;
(c) multiple open/short-circuit and/or leaky surface-mounted components on the HT/line output rail;
(d) power supply could be the primary cause of the problem.

Because surface-mount components are extremely expensive, as well as being exceptionally tiny, manufacturers recommend complete board replacement rather than individual parts - this is more economical not to mention easier in the eyes of some service centres.

Either way this set would be expensive to repair, and should really be carried out by an authorised agent. I recommend you get a quote from an authorised agent, then you can decide whether to pursue the repair or not.

Posted on Feb 13, 2011

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Posted on Jan 02, 2017

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