Question about LG 32LB4D 32 in. LCD HDTV

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Black screen-no sound- power light on - LG 32LB4D 32 in. LCD HDTV

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  • LG Master
  • 776 Answers

You may want to check the listing for repairing the power board for your TV:
http://www.coppelltvrepair.com/search?q=32LB4D

Make sure to read the failure syndroms as descrined in the repair service listing.

There may also be an article on how to check the power board with a meter - that is really useful and can save time and money when you can do it.

Hope this helps!

Posted on Sep 05, 2012

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  • Master
  • 11,361 Answers

Right now only 5vdc standby power supply is working but not the rest, you need to inspect the 12v/24vdc power supply section to se if it has any bad component such as DC filter caps with domed tops.
Please read my guide and see the pictures in my albums to learn more on what to look for inside the TV.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
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 pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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