HP 2309m won't turn on - damage lightning

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  • caseyjay
    New Member
    • Aug 2013
    • 2
    • France
    #1

    HP 2309m won't turn on - damage lightning

    Hi, a recent lightning storm has left me with 2 LCDs and 2 Satellite boxes malfunctioning so rather than see them go to landfill I'm starting out on repairs and need some newbie guidance, thanks:

    My HP monitor (2309m, LG23" screen) won't turn on at all - it usually has a blue LED when on/nothing when off. If I plug in, LED is white all the time. I stripped the unit down, no obvious damage to either board or caps.

    I checked the power from the power supply pinouts to the controller board but have no guide to know which ones are which, I have ten in total:

    2 red are giving 5v,
    1 blue = 2.65v
    1 green = 0.45v
    The rest have no voltage. This is in standby mode.

    I have checked resistance on (what I think is) the primary fuse - shows 0.3ohm - see pic attached for what I am testing.

    Any guidance from the experts here? thanks in advance
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