Question about Televison & Video

Open Question

I have an LG 42PC3D Plasma set. The set would not turn on so I did some trouble shooting and found and replaced all the capacitors on the power board. Some were bulging so I decided to change all of them. I also replaced the shorted IPM (the large chip under the heat sink) and related fuse on the YSUS board. I now have a working set again. The problem I am having is the much typed about "red sparkles" on the left side of the screen when a dark background is present. I have read many posts about checking and changing voltages on the power board and both Va and Vscan are exactly as printed on the set. I am loath to just tweak the various pots without knowing what they control. So my question is-- what do the pots the power board and YSUS board control and how much out of spec is it safe to adjust them? This would be the Va and Vscan on the power board and the SetUp and SetDn on the YSUS board. It is easy to track the adjustments on the power board with a DVM. Where on the YSUS board can you track the changes to SetUp and SetDn? Finally I would like to know the root cause and hopefully repair of the "red sparkles."

Posted by on

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

tvtechnician
  • 105 Answers

SOURCE: Vscan voltages on LG Plasma

yes it actually works but i wouldnt do it unless your a trained professional. this really shouldnt be done without an oscilliscope.

Posted on Oct 16, 2007

SOURCE: while checking Vscan voltages on my LG du-42px12x picture died.

I have the same problem the pic went out but have sound. where do i go to get the Yboard? do i need a special number off of it or something? I took it to repair shop and he said it would be like 500 dollarss to repair. but i see all kind of yboards on ebay for like 150?? how do I know what one to buy?

Posted on Aug 08, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

42" plasma powers on but


You have a some leaky capacitors in the high voltage section of your TV repalce.

Nov 08, 2010 | LG 42PC3D 42 in. Plasma Television

2 Answers

My LG Plasma 42PC3D turns on and off repeatedly. I turn on my FIOS set top box first and than the TV and it turns on and off repeatedly (front bottom display goes red and green, red and green repeatedly)....


Your plasma TV has a power supply 6709900019A. These power supplies failed due to defective capacitors. See the picture below and check the capacitors mark with the red lines. There are 10 capacitors that should be replaced even if they do not show signs of bulging/swelling on top.
The value of the capacitors is 3300uF/10V but you can use 25 volts as long as they fit in the space provided by design.


4c29d64.jpg

Sep 24, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

My name is philip - i have an lg 42pc3d plasma tv...


The most common issue is either the ysus, zsus, or control board.

May 20, 2010 | Televison & Video

5 Answers

LG 50 inch plasma has trouble powering up. have


Power supply board have dead capcitors.Know how to solders?These capacitors usally bulge or pop open,replaced these capacitors will solved this problem.Or tries websites Shopjimmy.com,Ebay.com to buy a Whole reburbish power supply board for the replacement.

Mar 04, 2010 | LG 50PX5D 50 in. Plasma HDTV

1 Answer

Recently my 42" Daewoo PD46C10 madea loud "pop" and turned off ?? Is this something I can fix ? Or should i be looking for a repair shop ?


Ur power board it dead,replaced the whole board it easy.Tries these Websites Shopjimmy.com,Ebay .com for board.Or replaced parts,must know how to solders,might have pop open capacitors?

Dec 12, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

LG Plasma 42pc3d turns on, pops, turns off


Its very likely that you need to have LG perform a sodtware upgrade on your unit. Contact LG and see if your tv is one of the applicable units with software upgrade issues, please let me know if it works. Good Luck.

Dec 02, 2009 | LG 42PC3D 42 in. Plasma Television

1 Answer

LG 42PC3D-UD plasma tv takes 22 minutes to turn on


the more i think about it, replace your power supply first. they have been known to cause this problem you are having

Feb 27, 2009 | LG 42PC3D 42 in. Plasma Television

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

38 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74106 Answers

Cindy Wells

Level 3 Expert

5099 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...