Question about Mitsubishi WS48511 48" Rear Projection Television
TV initializes properly when plugged in. Press power and the TV will start to turn on, but shuts down after a couple of seconds. Don't see any blown caps on DM board or anywhere else. Power LED self diagnosis test returns 1-2 No Error. Anybody have any advice?
I am having the same sort of probblem
TV stays on for awhile and then powers itself off and won't come back on for awhile then will work ok again.
Posted on May 21, 2008
Have you checked the pico fuses on the bottom side of the PC board? They are small ceramic fuses soldered directly to the runners.They have been known to blow and your set will not power up. Hope this helps, if you need anything further let me know. Also sometimes the 1000uf caps don't show any signs of swelling but can still be bad.
Posted on Jan 23, 2008
I also have a dead WS-48511 that turns on for a few seconds and then turns itself off. It was purchased January 2003, It did this the first time in March 2007. The convergence IC and fuse had to be replaced, under warranty. It did it again June 2008. This time it isn't covered by a warranty. I'm replacing the TV. It takes a soldering gun to remove/replace the convergence IC. Last time I check circuit boards don't do well removing the same part multiple times.
I talked to the repairmen and he said on some WS-... TVs there is a convergence chip for each channel. On the 48511 there is one chip for all three channels, I.E. a bad design.
I was excepted a $2500 TV to last more than 5.5 years.
The repair cost would have been around $450 the first time, two trips.
Posted on Jul 21, 2008
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