Pls help on Panasonic LCD TV repair 維修求助

本帖最後由 enozemail 於 2016-9-7 00:51 編輯

Panasonic LCD TV

Model no.

TH-L37S25H

Failure symptom: No power on, no screen, no power LED.  used about 4-5 years old for grandmother.

Pls advice on repair, thks in advance. Capacitor looks good, no bulge

back of tv



power board



logic board



model no. power board

seach taobao, but cannot find

TNPA5221

power board replacement on taobao.

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樂声应該有5年保用,你試吓联系信興。

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本帖最後由 HK2046 於 2016-9-7 04:37 編輯

check relay
And check close to  relay  capacitor a must

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回覆 1# enozemail

個人經驗:
Sony LCD,  又係壞到連 power up LED 都唔著, 叫 Sony 師傅上門, check 到燒咗 MOSFET 和電阻, 兩粒都係 switching transformer primary 嗰邊. 換了搞掂.

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Panasonic  have 5 years warrant wo

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just out of warranty. bad luck

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唔好以為人地換一兩粒cap 好易,小心high voltage.

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回覆  enozemail

個人經驗:
Sony LCD,  又係壞到連 power up LED 都唔著, 叫 Sony 師傅上門, check 到燒 ...
eeek 發表於 2016-9-7 12:55


直接換MOSFET同電阻? 唔係成塊板換咁好心機整!

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