Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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Tv has problems cuting on

It is a RCA d52W20 52 inch projection screen tv. when turning on green light on the front panel lights up for few seconds and goes back off it does this 3 times then you have to wait a while before trying it again it takes several times before the tv will cut on.

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  • smitsca Jan 09, 2009

    I have the same problem. The green light comes on for about 5 seconds, then goes off for the same amount of time. It does it 3 times then you have to wait for a while to try again. What I do know is just leave the T.V. on and put it on a different input selection so that the screen goes black, but it doesnt turn the T.V. off.

  • davis5113 Jan 16, 2009

    i went ahead and changed out the capacitors cp150, cp114 and cp120. i have turned it on and off several times and seems to be working ok. i will keep optimistic and thanks for the help.

  • Joesipaq May 11, 2010

    I just answered this on another post, so I will copy and paste here because i believe the same solution will suffice :)

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I had this problem with mine. And it is caused because it is a safety shutdown-
The Safety shutdown may be broken into five distinct sections:
• Audio Power Supply and Audio Output Monitoring
• Main Run Power Supply Loss (PS LOSS)
• Rear Projection Instrument Safety (CRT Scan Loss protection)
• Startup Delay
• Power Supply Overvoltage

When taking measurement I used Pin2 of IP250, It is located in G-0 on the Voltage regulator board.

First off, check the main safety transistor, TP210 located at G-2 on the power supply/scan Bord. It will have 3 semi large heat sinks and the main tube power cables coming off of it.

The Emitter should always be 5Vs, The emitter is also the Furthers pin form the heat sink it is right by, So if looking at it face on to the flat side of the transistor the emitter is on the right.
The base when in:
normal high
protect low
off low

The collector goes to the power switch and should be
normal low
protect high

I pulled mine out to check to see if it was bad because it was reading odd like a shored EC, and it checked out fine. After re-soldering it back in, my set worked fine! Over my TV's life it seemed to have produced a weak point in its solder joint I guess. That in your case seems like it is about to go out for good.
I would say just re-solder that and you should be good to go!!

It this does not work for you let me know, I have much more information.

Regards
Joe

Posted on Jan 10, 2009

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