My 1996 Mitsubishi tv was working perfectly, no trouble whatsoever. I know this may sound funny, but I fell asleep with the tv on and when I woke up I found myself laying on the remote. I shut the TV off but when I woke and turned it back on the screen had and still does, this green haze to it. It almost looks like the brightness is all the way up. I still get a picture with color but you can tell its not the same as it was. Any suggestions on what it might be? Or if maybe when I was leaning on the remote I may have screwed something up?
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On the lower right side of the psu, (clamped to a heatsink), i changed the 8.5v (L4940P85) voltage regulator and it worked. As a test to single out the fault i warmed this component with a fine blue flame, this would make also make the tv work perfectly.
This projector has three LCD screens followed by a prism to converge the screens and project the light. Lack of maintenance is the usual cause.
If the lamp is old, it will produce more and more UV light that will burn, usually the first colour, the blue LCD panel giving a greenish hue starting from the centre of the screen and working outwards.
If the filters are blocked, this will damage the LCD screens.
The screens are available from Mitsubishi but maybe cheaper to replace the projector as they are very expensive and fitting is a specialised job.
Sounds like your TV has a convergence problem. If you order KIT 10 from B&D ENTERPRISES at 1-800-458-6053 The KIT will include all parts neede and layout of part value & locations on simple paper lay out diagram. Or call FACTORY SERVICE;
Good Luck, big IRISH. PS or get from HIT Part X480293: kit.
you have the V17+ chassis. The error code blinks a 2 digit code. So yours is either blinking a 12 for no error or a 21 for xray protect shutdown. Count the blinks carefull. it should blink a number pause then blink the second number. You will no doubt need the service manual. I have a good source for mitsubishi service manuals. Let me know if youd like more info and let me know what you discover with the blinking Led.
Check any/ all pico fuses in power supply.
PVAT! Look for evidence of CRT coolant leak.
Since Perfect Focus is a function of convergence,you might consider replacing
convergence IC's,then perform alignment in servicer mode,then finish w/Perfect Focus.
sorry silly girl seen this a hundred times!! The crt socket on the set needs to be carefully taken off and cleaned with wd-40 or tuner wash. its an intermittant connection on the screen contacts and the contacts that bias the grids.. It can be a green haze a blue haze or a red haze. Very common on 3 to 5 year old samsung tvs. Good Luck