My tv flickers what should i do 42 proscan - Proscan 42LA30H 42 in. LCD Television

Bud Martin

• 11361 Answers
• Posted on Dec 30, 2010

SOURCE: I have a 42" Proscan

That sounds like either bad T-CON board or main board, need real in-depth troubleshooting.
You can the parts here:
http://www.shopjimmy.com/catalogsearch/result/index/?q=Proscan+42LED55SA+&stock=all

I hope it is still under warranty.

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

SOURCE: I have a 42" Proscan

It sounds more like a backlight problem to me. The first thing I would try before tearing the set apart is simply unplugging it for about five minutes and plug it back in. TV's do weird things sometimes and need to be reset. Odds are, if you have to open up the TV, there's not a whole lot you can do anyway. Check the backlight on signal and also see if your inverter is working. I would suspect that if you're strobing your backlight is probably dying. In that case all you can do is replace the panel; you could try finding a replacement backlight and installing it, but I wouldn't advise even trying this. Replacing backlights is quite a task if you're not familiar with televisions. Anyway, best of luck.

Shajan RS

• 890 Answers
• Posted on Oct 18, 2011

SOURCE: proscan tv flickering

I'm sorry that the picture on the TV has constant flickering. Please follow the troubleshooting steps and check the operation:

• Please make sure that the connections are secure and proper.
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• Try connecting a different video source like DVD player or VCR and check the operation. If it works with another device, the issue might be with the input device currently.
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• Also try connecting the device to a different port in the TV if no other devices are available.
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• If the issue persists, try with a different cable.
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• Perform a power resetting and check the operation. To perform the power resetting, unplug the TV from wall outlet for more than 2 minutes and then reconnect it.