Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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The timer light is blinking and when i reset it, the timer light still blinks. Is the bulb no longer any good?

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This is a model prone to this problem.

In a nutshell all these sets develop this trouble. Google the model number and you will see what I mean.

I worked on a lot of these when new and also under extended warranty.

Three circuit boards are involved and any of them can cause this--bad filter caps on power, FM, or DM boards cause this problem.

At first you could order any of them and just replace, problem was the caps on all 3 were going bad--at 2-3 years they started dropping like flies. It was not strange for us to have 12 or more at one time in the shop.

Eventually it got so bad the boards were no longer available from Mitsubishi except on a rebuild basis and now that is gone.

To avoid a class action lawsuit over tens of thousands of these models (yours is the worst) they came up with a "solution"

About a year ago they started selling on an exchange basis the entire signal CHASSIS, it contains all three boards and the units are rebuilt---last time I heard only available through a Mitsubishi authorized service center and part wholesales for 200.

The problem with trying to repair the boards is you fix one and shortly after another fails etc.

Look into the Chassis exchange or consider another set. Needless to say I would not recommend another Mitsubishi DLP.

Let me know if you have questions.

If this told you something you did not know, rate this solution as very helpful as I do this here for free.

SD TECH

Posted on Oct 05, 2010

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Troubleshoot section in manual says, 'recheck wiring.'
Cut back insulation on stranded wire so stranded is longer than solid, Then wrap stranded around solid, and apply wire nut. After nut is tight, pull on stranded wire to make sure it is not loose:
http://waterheatertimer.org/How-to-twist-electric-wire.html
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http://www.intermatic.com/customer%20service.aspx

Open following link for resources:
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