Question about Mitsubishi WD-62725 62" Rear Projection HDTV-Ready Television
About 5 minutes after turning on set picture will bounce or flutter on all channels for about 5 minutes after that it's fine.I'm guessing it's a warm up problem but have no idea what to do before it gets worse.
In case there is a loose connection and the convergence board is not damaged. This is what I did and worked out "perfect".
My Mitsubishi HDTV Medallion 1080 has been with us for about 7 years.
The TV started showing distortioned colors and images and even when I used the convergence options from the main menu, it would not show clear images until it would be working for around an hour or if we would hit it until the image would fix. It got worst over the time at a point that it would require 2-3 hours working and several punches and kicks.
No doubt dust has done it's job, well, a vacum with a brush end can help resolve the problem.
1. Make sure the TV is off and disconnected from power.
2. Remove the rear cover at the back (it is clear wood colored and is at the lower part of the cabinet)
3. Using a vacum with a brush end, vacum all the dust that you will find. Be cautious not to hit the components and do not or apply preassure while doing the work
4. On the left side, you will see a card over a mother board, make sure to vacum it well and that it is well inserted in the slot (I did apply some preassure to make sure it was fully inserted)
It took me around 15 minutes and my tv is working like NEW.
While you are removing the dust with the vacum, you may want to vacum the 3 lenses as well, again, using the vacum, no need to clean them with a cloth. I saw a thick layer of dust over them and could remove it easily with the vacum.
Hope this will work for you.
Posted on Oct 05, 2008
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Bounce horizontally usually means up and down,which relates
to the vertical output IC. Solder IC301, IC401 pin connects==try
again.You can easily isolate "bounce" problems by lightly
tapping on the vertical IC heatsink....Let me know if you need
PS. Though hard to find, a qualified tech could do that repair
in home for 300. to 400.00...
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