Question about ViewSonic VX2235WM Monitor

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I think i may have a few bad capasitors on my LCD screen mobo. Its 4 of them that has bulging on the top of the capasitor and the bottom of one of those seem to have been deformated or something like it, but i cant see any clear evidence of electrolyte oozing. now to what happens with the screen when turned on, When power -ON- the LED button lights up blue, the screen lights up 3-4 times after repeatedly shutting down, then after 2-3 sec it goes to standby if none connection are plugged in. When connected, it will try to light up the screen but fails after a short moment, my friend who was the previous owner of the screen told me he tough it was the Mercury lamp. but im more sure its due to bad caps. The caps look bad, and they'r named: KF 105*c P646 VENT or KF P646 VENT. Cuz the 105 is Celsius

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You can swap the capacitors with same value but new one.
Only if you can get all done by 1/4 of the price of a new LCD, if not it is not worth your time to fix.
Another problem might be from the ccfl lamps open circuit.
You need to identify your problem. Cheers.

Posted on Jan 03, 2011

Testimonial: "Good job! =)"

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  • Alexander The Great Jan 03, 2011

    Well thats nice, but were can i find these Capacitors and whats the average price for these? what do you mean by the ccfl lamps open circuit? Please explain more detailed so you can make my day. And also, yes i'we tried identify the problem, but its not that easy, and im pretty sure its due to the caps. but i might be wrong =)

  • WAN YF Jan 06, 2011

    you need to desolder the cap and read readings like 1000uF 25V will on the side of the caps.
    If you can get the components in your local store, you can buy back and resolder all bad caps.
    If sourcing is a problem, you better take back to viewsonic service centre, and it carries 3 years warranrty. and viewsonic service centre will advice you to repair or not.
    Price for caps varies from town to town, should be less than 0.50USD per pieces.

  • Alexander The Great Jan 07, 2011

    Okay, Thank you alot! =) Cheers mate!

  • Alexander The Great Mar 23, 2011

    Well, the Monitor is all fixed now :D A little magic with my fingers, and a old sacrificed LCD screen i managed to swap the damaged capacitor and now the screen works like a charm :D Really nice Monitor indeed, everyone else with the same issue as me, its probably due to a damaged capacitor on the powersupply. =) Cheers!




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