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32lg3000 When I turn on my TV, it comes on straight away, however, there is a black screen, but with some lines on it when i press menu for example. if i play my blueray red and blue lines appear on the screen, and after turning it on and off a few times it will come on, but usually only after a while (maybe ten minutes), the picture comes on perfect, and remains so with no trouble. Any advice on what may be the issue?

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  • Televison & ... Master
  • 35,601 Answers

The power supply is erratic and likely to fail completely

Posted on Jan 07, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 718 Answers

SOURCE: TV was playing, then the screen turned black.

If the screen is black and you have sound then lightly press and shine a strong flashlight against the screen. If you see an image around the edge of the flashlight, an image is being 'displayed'. The problem is probably in the Inverter/CCFT or the power going to the Inverter.

Posted on Feb 24, 2009

DRACO A5OG
  • 22 Answers

SOURCE: Intermittent picture, blue line

I have a Vizio P42HD but once it is taken apart, it is all LG components.

It is your Power Control Board 6871qch038a. The solders are so small it isn't worth trying to re-solder.

Spoke with PartStore.com, rep stated 6871QCH038C (038C) is the superceded replacement for the defective prone OEM 6871QCH038A (038A). They and others offer the 6781QCH060Q (060Q) for $50 - $100 more. I opted for the 038C, but I was concerned about the title of the part which states "HAND INSERT"... PartStore.com rep stated it is in fact a board and there is no soldering needed, just "plug and play". DONE, paid only $120.95 + next day shipping for $29.95.

Since I took the TV apart before, it was a breeze and took about 2 hours, start to finish.

Important note, remember to remove the two 1" square spunge type heat sinks/pads the new board needs those for a proper installation and protection of the certain component.

Also you need two small zip ties to replace the ones you are going to clip off.

Added Bonus, the new board fixed other issues:

1. At times I would get a squeegly red line go across the screen. I thought it was the source (cable) but it is gone now.

2. Screen Shift, when I use the XBox for Games or DVD/HDVD the screen would shift. Very annoying, prior to swap out, recently the screen started to shift watching cable. Now it is no-longer an issue.

I am really pleased with my DIY repair and wanted to share.

The damn Vizio Out of Warranty Service wanted $360 for a service call which included the part for $125 plus they take my bad board for exchange.

6871QCH038C $120.95 http://www.partstore.com/Part/LG+Electronics+Incorporated/LG+Electronics%2fZenit h/6871QCH038C/New.aspx
Over Night Shipping #29.95
DIY FREE biggrin.gif

Posted on Dec 31, 2008

srinivas1515
  • 108 Answers

SOURCE: red, blue and green dots appear on screen like snow

ask ur service provider and ask him to change ur revolution or ask him to change ur sreen

Posted on May 21, 2009

Big Hev
  • 64 Answers

SOURCE: samsung 42" Plasma -Black vertical line when turned on.

It sounds like an Intergrated Circuit (IC) has fried. Even on a good day, this is not something you can attack at home. As a tech (and as an owner of that model samsung), I'd need a map & tools to know what's going on. Your best bet in this situation is to contact Samsung and let them recommend an authorized service center in your area. Sorry I can't be of more help, but this is a rather serious problem.

Posted on May 25, 2009

  • 16 Answers

SOURCE: My 32LG70 won't turn on and the screen remains blank.

Try resoldering everything back onto the power board.They become brittle sometimes.

That doesn't do it then buy a cheap cap meter off ebay for around a tenner and firstly pull off every single electrolytic then ceramic capacitor and test.

Very easy to test,look on YouTube for videos.

Replace faulty&marginal caps and your problem should be gone.Remember m8,take your time,don't rush these things.

Posted on Jun 05, 2010

Testimonial: "Thanks for the reply and corrective action, I thought it may be this issue but good to have confirmed. I'll check it out and see what happens."

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