Tip & How-To about Televison & Video

Television sets newer Led and lcd

When your flat screen television starts having problems with the color or lines; it is very difficult to isolate the trouble without actually diagnosing the problem. Many current flat screen manufacturers don't offer any parts availability let alone a schematic. Professional television experts have the tools to repair your flat screen. Inside the television there are many parts that carry high voltages even when it is unplugged. You must know what you are doing as to not get shocked or killing yourself. The electronic boards are also sensitive to static electricity and just touching a board without know how to ground yourself can be very costly and dangerous. If you have a broken or cracked screen; yes it is possible to get a replacement and 9 out of 10 times it is cheaper to purchase a new set. USA doesn't carry many of these parts; they come from China where the tv's are manufactured. I hope this helps many. Thank you

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1answer

Lg 37lc7d is having trouble turning on, it starts then stops, then starts and stops then turns on after a couple of mins what is happening

If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
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1answer

How to trouble shoot problem with JVC Slim TV with blue color on lower leftcorner and green on the upper right color? Also, the display using VideoInputs are not correct horizontal.. the Screen is tilted. Also during TV mode, some times the screen is chop with black color on top and bottom sides of the screens.

http://www.go-gddq.com/upload/2009_03/09032313026620.pdf
www.scribd.com/doc/.../Sanyo-TV-LCD-Training-Manual
www.scribd.com/.../JVC-LCD-FLAT-Television-LT26WX84-Service-Manual
www.scribd.com/.../282-29-JVC-HD-ILA-Basic-Model-Training-2007
These service and training manuals above show you how to troubleshoot and isolate any problem, and what to do about it, please have a look and download and use all the information, in the manuals and you will soon isolate your issue.
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1answer

Vertical Line started on left side of HDTV, and now

This problem is down to the actual LCD or plasma screen, if this shows as the screen warms up and stays on then the screen will need to be replaced, you should go back to your retailer (not manufacturer) and report this problem, depending on the store and how long you have had the tv, the tv can be replaced for a like for like tv at store as this is not a cheap standard repair.
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1answer

black line half way down the center of the screen,about 1.5 inche

There's a 'data control' and/or 'address' problem that's developed. Pixels depend on voltage, control, and data coming too their designated address.

A digital circuit feature called a 'DATA_ADDRESS_ BUS" are responsible for 3 criteria: Delivering voltage, control, and data to each pixel in less than a second.

1) If voltage fails the pixels don't light up. They appear black in color (their 'off 'state)....numerous pixels that don't light up look like a black line. But their actually individual pixels with no voltage.

2) If control fails then all pixels are white in color (their 'on' state). Without control the pixels can't adjust properly to high or low 'state', meaning brightness and dimness. This looks like a white line vertically on the screen.

3) If data fails then the pixels can't adjust to the proper color at the proper time.
This appears as a line that changes color out of sync with the entire picture.


Have a technician look at the pixel address registry circuits. As well as control and linear circuits....the problem is somewhere in there!
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2answers

Emerson HDTV

this is a chip on film problem it can't be fixed if your set is still under warrenty you can have it replaced. The repair site will scrap the unit because the chip is actually embedded in the screen.
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