Tip & How-To about RCA HD50LPW175 50" HDTV

Power supply repair for ATC 336 chassis HD50LPW175

I have seen quite a few of the ATC336 have dead capacitors in the power supply preventing start up . The capacitors in question are CP647, CP624, CP639 and CP641 all were bad. Replaced these capacitors and the sets powerd up and operated

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I have a RCA HDTV SRS EN-V tv and when I push the power button it turns green for a second and then it goes off and then turns orange and blinks

It looks like 5 blinks, I saw a fix for that
"you have a error 5 blinks, may have Power supply
problems replace CP647,CP624 on 15'v line.
CP641,CP639 on AC Board, will be ok. Other thing, Am suspect on the lamp too, ( already replace?, if no, you need replace).
Hope that helps, Have you changed the lamp before?
Good Luck

May 19, 2013 | Televison & Video

1 Answer

at336 ns-np

Replace the following 4 capacitors on the power supply board They are CP624, CP639, CP641 and CP647 they are all 1000 uf 35V 105 degree radil capacitors. that should take care of the problem. If you need further help let me know.

Aug 04, 2008 | RCA HDLP50W151 50" Rear Projection HDTV

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ATC336 Power Supply

Yes the symptoms of bad capacitors on the Power supply can mimic the symptoms of a failed DM3. Its alot better to try the capacitor change first, as they are a common source of failure and the price of the DM3 is very exspensive.

Jul 10, 2008 | RCA HD50LPW175 50" HDTV

1 Answer

ATC336 Power Supply Issue?

You can get the capacitors at the following link just leave them a email indicating that you need the capacitors for the ATC336 power supply and they will get back to you quickly, they have the high temp capacitors in stock.
Here is the link

Jul 10, 2008 | RCA HD50LPW175 50" HDTV

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