Question about Televison & Video
Small 4 inch Digitor colour TFT-LCD TV. LCD-524 N19 G7240
No picture signal, any channel but sound is ok. Screen clear but brightness controllable. When external A/V used same result. Help. Peter
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Posted on Jan 02, 2017
Flyback lines? Is the picture all white with no brightness control with faint horizontal faint lines? If this is what you are saying, the screen voltage could be bad, and if thats the case, the picture tube or the flyback itself could be bad. You could also have a bad connection on the crt socket
Posted on Dec 27, 2006
SOURCE: rear projection lg lcd 44 inch
Is it an LCD or DLP? The Model below suggests it is an DLP. Sounds as if you have the dreaded light tunnel collapse common to all LG DLP TV's. Inside the light engine there is a square tube made up of four mirrors. These mirrors deform and crack with the heat of the lamp. They fall down over the light aperture and cause a shadow of varying degrees. It is fixable now at a realistic price ( used to have to replace engine) as LG have made the parts available. It would take a competent tech around three hours to complete or if you are technically minded you could do it yourself. I hope this helps. Good Luck.
Posted on Sep 30, 2007
Problems described are related to Backlight.It is possible that backlights of affected area have become weak.
You may need to contact the company for repairs and Yes the Repairs may not be cheap.
Posted on Apr 08, 2008
Tips for a great answer:
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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press and hold the POWER button
on the TV control panel for 5 or more seconds to reset the TV.
Then connect the TV tt any source like outdoor areiel or cable box etc, select the appropriate input, and retune the TV. First of all, connect it to an external antenna, and set it to autotune.
• You must configure the ANT/CABLE input source before
programming channels (-left-hand column).
• If the ANT/CABLE input signal type is set to Cable, the
automatic channel programming process erases channels
that were previously programmed into the TV's memory.
• If the ANT/CABLE input signal type is set to Antenna, the
automatic channel programming process adds newly found
channels to the existing set of programmed channels (and
does NOT erase channels that were previously
programmed into the TV's memory.) To remove an Antenna
source channel from the memory, you must manually delete
• To tune the TV to a channel not programmed in the channel
memory, you must use the Channel Number buttons on the
• Programming channels when the ANT/CABLE input is
configured for Cable will take substantially longer than when
the antenna input is configured for Antenna. This is normal;
however, once channel programming is finished, you should
not have to repeat the programming process again unless
your Cable TV service lineup changes significantly.
Find out the received channels are clear or not. If they are clear, your TV is perfect, and the input device you connects ot the TV is faulty. OK.
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