Question about Mitsubishi WD-52525 52" Rear Projection HDTV
Hello, I have been reading through all these problems and I think I either have a problem with the ballast or light engine.. not sure though. Can someone offer me some assistance?
When I do the system test I receive the error code of 34. I removed the cover from the back and when I turn on the TV I can see the bulb light up for about 5 seconds and then it turns off. The TV(fans) will stay on for about a minute and then the TV turns off and the Lamp Light will turn on and stay lit Yellow. I can not turn on the TV again unless I reset or unplug it from the wall and start over again.
Is there something else I can test to verify what the problem is?
Thanks in advance.
the last guy is correct. the 3300Uf caps, located side by side next to each other on the main power supply board go bad, causing the sensor that detects light coming from the lamp starting up, to not have the 5 volts needed to sense the " flash" from the lamp.
the caps will usually be bulging at their tops, with brown electrolyte oozing from them.
change them, reset by plugging the tv back in, and your problem is fixed.
I shouldn't be telling you this, (i'm a tv tech) I charge $350 to fix this problem.
I figure anyone who is intelligent enough to repair their own set, deserves a break now and then
Posted on Jan 28, 2008
I had the EXACT problem with my 2.5 year old WD-52525. After reading tons of comments on this site, i came accross a DM Repair solution by a guy named Techman (sorry, i can't find the link anymore). The problem that causes the bulb to only fire for 10 seconds and turn off is due to 2 capacitors on the power board, NOT a faulty bulb, The 2 3300uF 10v capacitors are located on the main powerboard of the TV. There are a total of 4 boards sandwitched together making up the chassis. Techman's article explains to replace a set of 4 1000uF 16v capacitors on the DM board that affect the picture. Although those capacitors may need to be replaced as well, the 3:4 bulb red light problem is from the 3300uF 10v caps. I would suggest getting the service manual from www.megaupload.com to see how to remove the chassis and get to the boards. Then refer to Techman's instructions on how to replace Capacitors on DM boards. Replace the 2 3300uF 10v on the power board and also all of the 1000uF 16v capacitors on the rest of the boards (i replaced these as well just in case they were bad) and your problem will most likely be fixed. I have never soldered before and know nothing about capacitors but with some patience and Techman's instructions, i replaced the capacitors, put the tv back together and to my suprise, it fired right up and has been properly ever since. The capacitors, a desoldering iron and a regular soldering iron from Radio Shack cost me a total of $30 to fix my TV. The authorized Mits repair man i had out to look at my TV before i tried to fix myself said that i need a new ballast and/or light engine and quoted me anywhere from $1,000 to 1,800 to fix the problem. Thanks to hours of research on this site and a few hours taking apart my tv and replacing the capacitors myself, i saved a ton of money.
Posted on Jan 27, 2008
Hi. It does sound like it is the filter unit, I've seen this before, I also seen the bulb not able to turn fully on, defectibe bulb.
I hope this help
Posted on Jan 22, 2008
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Posted on Jan 02, 2017
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