Question about Mitsubishi WD-62725 62" Rear Projection HDTV-Ready Television

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Mitsubishi 62725 picture occasionally has slight horizontal lines. sometimes darker than other times. comes and goes. L.E.D. indicates light bulb has exceeded hours. If bulb is shot I would have no picture at all right?

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  • Mitsubishi Master
  • 17,130 Answers

This is quite possible that there are dry soldering joints in the main board, the power supply sections, possibility of some capacitors that have changed value or is dry soldered.
I would suggest that you must remove the main board and do a good soldering of all the points suspected.
Make sure that all the connectors are tight, remove and plug back all connectors, clean the board, remove and plug back the lamp.
make sure the cooling is good and the fault is not linked with heat generation, if so clean the vents and allow flow of air.
Request that the work be carried out with caution specially when dealing in power circuits.
try this link for good soldering tips...Good Soldering tips.

The advice/tip given is with the belief that you are competent. You must attempt to do it yourself only if you are technically/logically able, especially when dealing with delicate devices, damaging while trying to open, Probing electrical/electronic circuits with high voltage or delicate components. Since the advice given by me is with the inputs provided and not based on a visual inspection, there can be further reviews required in some cases.

Posted on Oct 17, 2010

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