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Mitsubishi WS-55809 55 in. Rear Projection Television
Problem for Mitsubishi WS-55809 55 in. Rear Projection Television

Mitsubishi WS-55809 picture shrank inwards, tv




By hellian82 on Jun 23, 2009

" "
Mitsubishi WS-55809 picture shrank inwards, tv turned off, wont turn back on...I did not see any fluid on any of the three main boards from the CRT's leaking coolant, However..I did experiment with turning it on again...somethings up with the red CRT..
The Green and blue seem to be ok i guess.... when i power the set, the red CRT has an electric arc inside the tube, or whatever it is. I dont know if that's normal or not. When it does, the lights in the room slightly dim for a second. All 3 CRT's glow orange on the bottoms, however the red one is kind of inconsistant, like the electrical arc in the tube is robbing it's power? this seems more like a power problem now...would this be correct? is there a way to disconnect the red crt to see if the set will power on without it?
Comments:

Jun 23, 2009

- is there a way to diagnose the PSU instead of just replacing it? ive got a multimeter handy if that'll help.. Thanks!

Best Solution

posted on Jun 23, 2009
Helpful)

rulds2008

Rank: Guru  Televisions & Videos  Expert
Rating: 86%, 982 votes
I would be checking the power supply unit instead of messing with the guns at this point.
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