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Still flickering monitor Proview MA-782KC

Hi just joined fixya, before post this Q, read all related topics, i resoldered all those capacitors in power suply board, still flickering, is there anything else i missed here? apart from flickering, sound and backlights working fine. Now i use other monitor, so that is DEFINETELY monitor problem, video card is ok. Is there anybody who experienced the same problem and guide me what other component need to be replaced?

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  • CrazeeRay
    CrazeeRay Apr 29, 2010

    Sorry, they have been replaced with new ones, not resoldered old ones, my bad ;)

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  • 1,684 Answers

Hello, Did you just resolder the capacitors? They need to be replaced not resoldered. When they start failing they can give exactly the type of problems you have, flickering or wavy picture, Slow display of picture when you power up monitor or very dark picture. Here is a link to an article that talks about replacing the capacitors and what you need to look for and what to replace; http://www.ccl-la.com/blog/index.php/capacitors/ If you have any questions please let us know at: tech@ccl-la.com

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Apr 29, 2010

Testimonial: "Thanx 4 your response Buddy, i was actually hoping to get your advise, because when i was reading other posts, your solutions were best, u r Real Pro!"

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My Proview PL926Wbi displays for a few seconds flickering then shuts itself off there is a crackling noise in the rear please help.


Look at the caps, solder joints, lamps connectors for arching sign.
If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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