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17PW20 v1.0

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telfordcompdoc:
Hello all,

I have acquired a Matsui 32" LCD TV. It has the dreaded blinking standby light.

I have purchased the repair kit for this board, replacing the caps and transistor, but it is still blinking....

Does anyone have any other options?

I was told to check the smoothing cap, but I really don't trust myself against such high voltage.

Many thanks in advance.

epi:
Have you cheked/changed C877 & C878 last one tends to go low (12n 630V), some supplies use one capacitor C878 27n 1000V, C877 not installed.

telfordcompdoc:
Hello,

Yep checked both 877/878 both are fine - It has had the kit09 fitted to it, so all new caps/IC... Still flashing on standby though.. Can't for the life of me think what else it can be - Failing this, I will have to purchase a whole new 17pw20 v1 board....

Any other ideas?

Many thanks

daz:
hi ,
check the smoothing block, can cause this fault,
good luck
daz

telfordcompdoc:
Smothing block... The large cap? I don't know if I trust myself checking that! lol

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