Question about Mitsubishi Diamond Plus 73 17" CRT Monitor

Monitor shows equally spaced rectangles

I have a Mitsubishi Daimond Plus 73 CRT monitor. Upon turning it on it sequences between white and black screens with evenly spaced 1-1/4" x 1-1/2 inch rectangles. If the screen is white the outlining rectangle lines are black, if the screen is black, the lines are white. It doesn't matter if it is plugged into the computer or not, it still shows the same thing. Is there anything I can do to get an input, or do I need a new monitor? I would appreciate any help. Thanks....Alan

4 Related Answers

Anonymous

206 Answers

SOURCE: 62' Mitsubishi WD-62525 little black and white squares instead of picture but I have sound

Mitsubishi list this problem and has a solution of replacing several small surface mounted caps and diodes. we have tried this repair 5 times and only successfully done it once. so replacing what is called the formatter board part # 930B924002 for around $ 350.00 usually repairs this type of failure, However changing this board is a time consuming thing and takes a lot of Patience. It is buried deep in the set and several other board have to be removed just to get to it

Posted on Apr 02, 2008

Ben Wabnick

2404 Answers

SOURCE: Vertical white line near the left end of the screen.

Usually when there are colored lines on the LCD its because the screen is going bad. Quick way to verify this, try a different monitor on your computer and if the line goes away then you know for sure the monitor is bad.

If you try a different monitor and the line remains then you know that the video card is bad.

Posted on Jun 03, 2009

Anonymous

4 Answers

SOURCE: My Mitsubishi WD-52525 is only showing black and

Check the white rectangular ceramic fuses on the FMT board. You blew one of them so there's power missing to some of the circuitry.

Posted on Jun 25, 2009

Dan Smith

60 Answers

SOURCE: Mitsubishi tv; black & wht rectangles only on screen.

Bad capacitors and probably a surface-mount fuse on the Formatter board.
There will probably be bad caps on all five boards within the chassis.

Posted on Oct 04, 2009

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Bad capacitors and probably a surface-mount fuse on the Formatter board.
There will probably be bad caps on all five boards within the chassis.

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Is this monitor a CRT-type? Chances are your picture tube is malfunctioning. This is a common error among CRT monitors. I advise you to replace the monitor with an LCD, as the power consumption is far less than CRT. Plus, it takes less space.

If you prefer a repair option. have someone "flush" the tube. This may fix the problem.

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Thanks a lot sir, even you can't help me to fix my crt but you incourage me to buy an lcd monitor,but i don't know when. cause lcd's too expensive here in philippines

Sorry.
A 17" LCD here is about $130.00

Aug 04, 2008 | Mitsubishi Diamond Plus 73 17" CRT Monitor

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The reason I had asked if you had tried a different monitor was to determine if it was the monitor or the computer that actually had the problem. That wasn't clear in the first question.
A computer that is having issues will cause the same symptoms you described.
Repairing CRT's is beyond my level of expertise. When I get into a situation like this, I would just replace the monitor. Sorry I couldn't have been more help.
I stopped using CRT's when the price of LCD's dropped.

Aug 04, 2008 | Mitsubishi Diamond Plus 73 17" CRT Monitor

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Check relay in power section for fault.To degaus the monitor.
Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.

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