Question about ViewSonic VX900 19" LCD Monitor

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Hi, My screen blacked out, However If I press the on /off button, my current page will show perfectly for a half a second & gop black again. I can repeat this overe & over.

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  • nyjohn1 Nov 19, 2009

    Thank's Fran,
    It's definately the lights, I rang out F1 which was right were you said it would be. Looking down 1/4" to the left of the white power plug (putting out a clean 120V). F2 I can't locate? Any suggestions?
    This is my first time in a flat screen & it's been a while since I used my meter I'm sure it's somthing I can fix, just need some coaching....
    Thank's again,
    John

  • nyjohn1 Nov 20, 2009

    So, I have it hard wired currently, as I'm writing you from this screen. No Safety....Not cool wont be powered unless I'm using it. If there's a bad cap lurking, I can't read the fuse type & amp, any suggestions? Radio Shack?
    John

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These have age related problems on the inverter board which lights the 4 bulbs
I repair these regularly through ebay.
Most common cause is a blown fuse on the inverter board, sometimes that is caused by bad capacitors or transistors. Usually it's just from age and heat.
Fuses are marked F1 and F2 and located on each side of the white large plug that feeds the board. These can be checked with continuity meter.
Fran

Posted on Nov 18, 2009

Testimonial: "Thank's again Fran, I was looking in the wrong place, power in brown Delta board had a F1 fuse. 4th board on opposite side had F1 & F2 Like you said"

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Posted on Jan 02, 2017

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