Question about Mitsubishi P-91W Printer
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Posted on Jan 02, 2017
SOURCE: Mitsubishi VS 4552A
One of your convergence IC's has either cracked loose or burned out. The IC will have to be resoldered or replaced and then the convergence circuits realigned. If you do not have experience in repairing convergence circuits then have a qualified tech handle it for you. This is by far the most common failure in the projection sets and a good tech can have it fixed in about an hour and a half. I charge $150 for that but shops in your area will vary, so call around.
Posted on Jul 31, 2007
Last point first.....contrast max default is normal.....
Next, I would adjust green screen and green focus = see if they
are working normally,if not then G2 / Focus block may be bad...
after that, I would suspect green CRT.........................T.
Posted on Dec 10, 2007
First of all check the circuit boards to see if ant CRT coolant has bee leaking on them. A strong flashlight will work best to spot it. It will usually appear on the front half of the boards nearest to the screen,. Mitsubishi has had some issue with CRT leakage. Also check for solder cracks around the Convergence amp ICs. Let me know what you discover, or if you need anything more.
Posted on Jan 31, 2008
SOURCE: vs 4561 weak picture
Good Day, Techwanab;
Look for this to be your problem: CHECK FOR OPEN L2C50 PART #325C146030 ON THE SIGNAL PCB, OR BAD CONNECTIONS AND LEAKY CAPS IN THAT AREA.
Hope this was helpful and not too late.
Good Luck, big IRISH.
Posted on Jul 31, 2008
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