[TechAssist] Re: Zenitv tv SF2569H2 9-823 PWR Board dead.

I think that you still have some bad caps in the ps. Check C3428 and C3440.
Also,check CR3415.
If all this are ok,there is a low ohms resistor(1 ohm) think in series with
CR3434 that opens and the set will not start.HTH
Mando
Birdie's TV & Electronics
Casa  Grande,AZ

Mitchs Electronics wrote:

> I'm stuck. replaced C3407 100mfd fixed set. Customer brings back and said
> worked fine but next day same as before. click click.
> 157v and 133v  18 volt source fine and adjustable.
> 28 v off pin 17 is 16 volt and #6 control output ic  icx3401 is 1.3 volt
> instead of 4.
> Nothing is loading the 28 volt line. I would look at waveform's but
> Scope/Iso transformer and rest of my equipment they were in shop van that
> was totaled by a Drunk Female last night. But that's a another story.
> Any one have any ideas?
> I have pulled ,tested and replaced, ICX 3401,3402 ic 4100,4101 KX3401 all
> caps primary side.
> Rick Mitchell
> Mitch's Electronics Ser.Co.
> Mitchstv@xxxxxxxxxx
> 3935 south 20th
> Lincoln, Nebraska 68502
>
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