Question about LG Televison & Video
LG MODEL 39LP620H-UH. HAS SOUND, MAIN BOARD AND POWER SUPPLY BOARDS OK. 220V GOING ON THE TWO LEADS TO THE FLAT PANEL. IT HAS TO BE EITHER THE SCREEN OR THE TFT MODULE?
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Posted on Jan 02, 2017
One thing is to make sure the inverter board is unplugged when testing the voltages. A shorted inverter will shut down the power supply if the fuse dosen't blow first. There are fuses that don't look like fuses so they can be missed. The next thing would be to look for a connector from the main to power supply and see if there is a pin labeled power on or p.on or similar. The main board should turn this line high(5V) when you push the power button. If not you probably have a bad main board. Unless you can find good used boards they are both expensive. Around $200 for PS and $300 for main.
Posted on Jul 06, 2008
My dear friend,
I've the same problem and I try solution on the numerous sites of company that project this module
Posted on Dec 07, 2009
SOURCE: PLASMA TV PROBLEM
The problem with this set, is defective YSUS board, to avoid future same problem, you must change the following boards: YSUS, ZSUS & Control.
Verify with LG if your serial Number is included within
lots production that were recalled by this design defect
Posted on May 28, 2010
Testimonial: "I'll try to contact LG dealers. Very hank you sir"
SOURCE: Visio p42hd, no picture
Yes it does sound like the mainboard. But we have to confirm. I will see if there is a service manual for this unit in my collection but do you think you can safely work on it? Have you worked on electronics before? The last thing I want is you hurting yourself trying to fix it. HV circuits are not to be messed with unless you know about them.
Posted on Nov 03, 2010
SOURCE: I have a SANYO DP46848,
Ray I have just about the same issue . But my only problem is the thin black lines. Do you think cleaning the flex cables coming off the Tcon will help at all? This is the same model DP46848
Posted on Oct 02, 2012
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