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Monitor dead

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  • dlekang Nov 22, 2008

    Turned L1720PQ off will not come back on, nothing at all. I removed the cover of the LCD. There are no noticable issues all capacitor look good. Any 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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