Question about LG Televison & Video
When the caps got real bad they may have taken another part on the power board---also see if any of the foil traces on the bottom of the board were damaged by the caps---some will actually leak a material that can eat the board foil off.
Short of that Google the model number with "parts" as I know one large seller who lists almost every LG set ever made and all the boards that are used in them--if you gamble-try the power board first.
Posted on Dec 06, 2012
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Posted on Jan 02, 2017
SOURCE: LCD turns off\on repair
You can also find this part for the Samsung LN-T4665F at:
If you have different TV do a search on the model number...
Posted on Sep 11, 2009
I have the same issue with my LG 42PC3DVA and I narrowed it down to the Y SUS board. After a little research there are a few items that are prone to go. The ceramic fuses (as you found), sometimes the capacitors on the Y SUS, Z SUS, and power supply go along with them You can tell because thy will be bulged at the top instead of flat. I replaced a few of my capacitors - they are only $0.89 each so it was MUCH cheaper than a board.
The other thing that is common on the Y SUS in particular are the FETs (also called MOSFET). They can be replaced if you are good with a soldering gun but they are static sensitive so be grounded. They are also a bit tricky to test so you may want to do some research on how to determine if this is the issue... or you can just replace the whole board.
Posted on Oct 28, 2009
SOURCE: I have a gateway 42"
Its not a power supply issue, but an issue related to the D-board on your TV. There would be swollen/bulged capacitors on this board. To check this you'll need to remove the back panel of the TV. Check the connections to and from the D-board. Make sure the lamp connections are fine and ballast is not burnt. Also check if all cooling fans are working.
Note-- Please make sure to turn off and unplug the TV for at least 1 hour (this will drain off current from all components especially capacitors) before you perform any repairs. Also note that the TV consists of very high voltages even when it is in OFF condition.
Please do accept the solution if the issue is resolved or else revert for further assistance.
Posted on Oct 28, 2009
Check to see if you get Va and Vs voltages from the power supply. There should be some wires running to the y-sus. A couple of those wires will be labeled va and vs. Are they present? There will be a sticker stuck to the panel somewhere telling you what they should be.
Posted on Mar 26, 2010
SOURCE: I own a PANASONIC TC-32LX85
Not all power supply used 3300uf/10v, it can have many many values, he was using generic term for typical value.
You should get the service manual for this TV first. You then need to do some voltage checking. Please read and undertand some basic how the LCD flat panel TV works so you will get some unsderstbding how it works.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Posted on Oct 19, 2010
Tips for a great answer:
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