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Blue grid screen on my pc monitor

Hey all,I've been rebuilding a pc.I tried hooking this older packard bell monitor up to 2 different motherboards and all I get is this screen that has a bunch of 1x1 squares with like 6 of them darker in the middle.The computer seems to be booting fine,but its like the monitor isnt recognizing the signal.I know its not the graphics card,what does this screen mean?

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  • Darren4mc Mar 05, 2008

    Well this monitor seems to work on my other pc now,but I'm puzzled why it dont work off the other pc.Any trobleshooting Ideas?

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  • 198 Answers

Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

Posted on Feb 20, 2008

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Posted on Jan 02, 2017

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