Question about HP L1702 17" LCD Monitor

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Monitor randomly shuts down

Our HP L 1702 for no apparent reason turns its self off.
It will not turn back on with keyboard or mouse activity but with the on/off button on the monitor.
This could happen ofter one minute of one hour.

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Re: monitor randomly shuts down

I replace the two capacitor 220uf 50v for 220 65v and it worked around a hour.but for some reason when you low down the brightness to 33% and contrast 6o it stay little be longer of time.please somebody can tell what I can do for fix this problem thanks.

Posted on Apr 02, 2008

Re: monitor randomly shuts down

Did somebody try the above solution which i gave there are two 220mfd 50volt capacitor try replace both first to check with zener if all zener are ok next step to check is only these two capacitors
AR Digital

Posted on Mar 24, 2008

Re: monitor randomly shuts down

Please check all the zener diodes in the board you might find short or leaky also there could be a capacitor value 220mfd 50volt try to replace that also

Posted on Mar 22, 2008

Re: monitor randomly shuts down

Pls somebody spot out the defective component in the invertor board

Posted on Mar 07, 2008

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Re: monitor randomly shuts down

This is either power supply (not usually), backlight drawing to much current, or most likely an invertor board component failure. Built in overcurrent protection on many of these boards will provide a shutdown signal. Weak transistors will crash when they get hot. Hp monitors are notorious for inverter problems. The time between blackouts will decrease until it no longer will light at all. Repair or replace the invertor.

Posted on Jan 15, 2008

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