RCA HD52W59


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RCA HD52W59

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h0llyw00d
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Nov 28, 2009, 7:25 PM

Post #1 of 5 (2019 views)
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RCA HD52W59	Can't Post

52HD RCA projection....was working, w/ intermittent power off, give it a couple and would come back on...NOW, try it and just get 3 clicks, 3 flashes front LED.

I have replaced:
Flyback
3 caps associated w/ flyback
HOT

Simple Power supply
puts out the proper voltage
3 pico's near flyback ok
disconnecting other circuits (convergence, CRT's) still gets 3 blinkers...so guessin its NOT Convergence, CRT, or Audio board issue
Coolant is fine w/ no leaks

Have pulled HV/deflect board out, and resoldered ANY point that even looked funny...lol

still get 3 blinkys..

h0llyw00d
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Nov 28, 2009, 7:27 PM

Post #2 of 5 (2013 views)
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Re: [h0llyw00d] RCA HD52W59 [In reply to]	Can't Post

Update: found a tiny variable pot(PP180) that was hidden underneath a plastic cover, see red circle-- <img src="http://i45.tinypic.com/2yulemw.jpg" border="0" /> It appears busted, has "471" printed on it, assuming this is 470 ohm?? what is the purpose of this and not sure where to set it, once i get a replacement (replaced it with a temp vari, and got HV to fire up, but still no pic, am waiting for proper part replacement) Thanx, ~MG <table border=0 cellpadding=0 cellspacing=0 width="100%"><tr><td width="2%"><hr width="100%" noshade size="1" color="#A1A576"></td><td width="10%" align=center>In Reply To</td><td width="87%"><hr width="100%" noshade color="#A1A576" size=1></td></tr></table><div style="margin-left: 30px">

(This post was edited by h0llyw00d on Nov 29, 2009, 1:05 AM)

h0llyw00d
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Nov 28, 2009, 7:28 PM

Post #3 of 5 (2012 views)
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Re: [h0llyw00d] RCA HD52W59 [In reply to]	Can't Post

Update: Finally have set powering up and staying on, I can hear the HV building up, and all stays on, but no pic and no audio what so ever, 1st problem i think i resolved by re soldering major points such as Filter caps, coils, flyback etc.
Will hear relay clik on and hear HV build up, front green light stays on, altho still dont know value or purpose of broken variable mentiond above.....obviously I'm talking to myself, as the site help is all but here, but am recording these babblings for posterity and future references for myself then.....;)

~MG

Ron.M
Veteran

Nov 28, 2009, 11:58 PM

Post #4 of 5 (2006 views)
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Re: [h0llyw00d] RCA HD52W59 [In reply to]	Can't Post

h0llyw00d;....

Quote

obviously I'm talking to myself, as the site help is all but here,

You need to have some patience....
You just joined TODAY & you posted 3 posts TODAY....
TODAY is a day between an American holiday called "Thanksgiving Day" & the weekend...
So a lot of us are gone for the holiday....
Add to that , you have the ITC222A RCA chassis that oftentimes is a nightmare to fix....
Give it some time & be patient, someone will be along to try & help you out....
I , personally , am not that familiar with this troublesome chassis or I'd give it my best shot....

Additionally;...

The control you have circled above was/is NOT broken....
It was made intentionally that way by RCA...
It is a sealed adjustment control to set voltages....
It is not something I feel you can adjust....
IF you haven't tampered with or dammaged it yet , GOOD!!!!, Leave it ALONE!!!
& re-install it back in the TV...

Quote

(replaced it with a temp vari, and got HV to fire up, but still no pic, am waiting for proper part replacement)

By using a varible control , you are asking for trouble...
That control could be set to turn something off so major damage is avoided...

GOOD LUCK....

Later...Ron.M.... Cool

....
Veteran & Retired TV technician

h0llyw00d
New User

Nov 29, 2009, 1:09 AM

Post #5 of 5 (2001 views)
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Re: [Ron.M] RCA HD52W59 [In reply to]	Can't Post

lol, forgot to edit that out, sorry...previously posted all these on what i found out later was some sorta pay scam site, so i C&P'd it all here....not in a rush @ all Ron.....Happy Holidays Wink

PS: yes PP180 pot was broken, leg broken off trim

(This post was edited by h0llyw00d on Nov 29, 2009, 3:41 AM)

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