Question about RCA HD50LPW42 50" Rear Projection HDTV

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TV turns itself off and then back on when I watch HD

I have an RCA 50" DLPHDTV. I had some issues with the lamp so I replaced that and I also had an issue with the video board and had that replaced as well.  Ever since I got the tv back it's very picky with what HD programming it lets me watch.  Mostly on sporting events or while playing video games in HD the tv will shut itself off and then after about 30 seconds it turns itself back on.  Any ideas??

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If it played OK before you replaced the video board and now you have an intermittent problem Suspect the part that was replaced...Does this set have a video board? I can't find one on my parts list. Also there are a lot of ISSUES with aftermarket lamps not working properly on hi bright pictures. I can find out correct part #'s with complete model #.

Posted on Feb 06, 2008

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1 Answer

TV turns off while watching it then turns back on after abt 1 min


TV needs new lamp as symptom shows existing lamp is weak and causing repeatedly on-off
Please replace lamp in TV, replacement procedure is written in user manual and it is not difficult.
Always buy Sony original lamp for TV safety.
Let me know if you need further help.
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Our RCA high-def 52 inch TV is shutting off on


It has you Posted as a projection TV and Not DLP, if Fan to Lamp stops running set will shut off to protect Lamp,I had a DLP that would play sometimes 30 mins then shut off drove me crazy trying to firgure it out and it turn out to be Fan would stop running I replaced Fan TV working fine . When you remove back engage toggler switch to up position put a piece of tape on it to hold it is a safty switch ,then turn tv on watch to see if all fans are running also if when tv trys to come on is there a spark coming from Ballast Board if so your new Lamp is defective it does happen if not your ballast board maybe Bad it is what turns on Lamp.If all fans are running Ballast Board.

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1 Answer

My Sony HD-TV KDF-50E2000 blinks 15 times pwr button then turns on. After about 2 hrs turns itself off and blinks 40 times then turns itself back on. shorter and shorter on time thoughout the day. No led...


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Symptom shows Lamp is getting weak and its time for new Lamp in TV.
Lamp replacement procedure is written in user manual.
Please buy Sony original lamp for TV safety.
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RCA HDLP50W151 keeps turning off


I had a set with a similar issue--at first the tv would suddenly turn itself off, sit for a moment while flashing the power button, then "reset" itself and continue running.

Then one day it quit starting up all together. I couldn't get a picture at all. I was hoping it just needed a new lamp (which is what I was able to gather from reading various troubleshooting forums).

I took it to a repair shop for a definitive opinion, and when they took a look at the TV it actually started smoking and the issue was definately the light engine, not the lamp.  Unfortunately, a light engine repair costs around $950.  If you try to do it yourself, the part costs about $700, if it is in stock (and it turns out that it often is NOT in stock).

Instead of putting that much money into this TV, I'm going to have to bite the bullet and get a new TV.  It just doesn't seem a good use of nearly a grand when new HDTVs can be had for around $1300.  Sorry for bad news.

If you can, try to replace the light first. You can get just the lamp for less than $200, although it may be a larger issue like mine.

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1 Answer

No picture


Assuming that the replacement lamp is good, you could be looking at a bad ballast (lamp power supply) or the switch on the lamp door itself could be causing the issue. The light engine also could cause an issue like that. I would have a technician look at it as this is beyond consumer repair.

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