Question about LG 42LG50 42 in. LCD HDTV

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After tv is on for about 15 min the remote and tv buttons won't work it won't shut off unless you unplug it

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  • Rrschnepp Schnepp
    Rrschnepp Schnepp Mar 12, 2009

    tv buttons don't work eather and what is the ir board

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Its the problem of the tv internal board as some components on the tv main cirfcuit board gets over heated and the tv reaches to HANG MODE and nothing happens.so just replace the IC 456UI on the main board of the tv which is inside the tv.which controls the tv internally to function it.if that ic turns faulty this can happen.if you are not familiar with reparing then get it replaced from a proper repair center.
thanks.

Posted on Mar 12, 2009

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IR sensor is the infrared sensor that detects the signals from the remote. When it is bad you need to either replace the sensor ot the whole IR circuit board. Try using a diffrent remote to check if your remote is not faulty.

Thanks
Rylee

Posted on Mar 12, 2009

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Its going in stand by mode and pausing.just keep it unplugged from main power cord outlet for 1 hour and this will reset the settings and then try.also replace the remote batteroies and try out. afdter you start again just scan all the channels to reset every channel.

Posted on Mar 12, 2009

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That is a faulty ir sensor on tv panel, try removing battery from remote, if problem stops, then it is the remote. if not , then the tv must be repaired and the ir board on tv replaced.

Posted on Mar 12, 2009

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1 Answer

Sound goes off after 15 Min


Assuming it is not hardware but soft settings...
1) Check and make sure that your TV does not have the timer set.
The Timer feature allows you to set a day and time for the TV to turn on automatically and the device and channel to display when it switches on. If the TV is already on at the requested time, the TV automatically tunes to the channel you designated in the Timer menu.
When the Timer turns on the TV, the following message is displayed: "Press a button for the TV to stay on." Press any button on the remote control within five minutes if you wish the TV to remain on.
Note: The TV clock must be set before you can use the
Timer feature (see preceding page to set the clock).
On/Off
Press down arrow / up arrow to enable or disable the Timer.
2) If not working, try SYSTEM RESET. Press SYSTEM RESET button on the front panel with pointed object (e.g. straight paperclip). TV turns off, green LED flashes for about 1 minute. When it stops flashing turn the TV on again. All settings other than Parental Lock need to be set again using the manual.
3) TV RESET. If all else fails for soft error. Your manual describes this last resort for soft type error. It could be hardware problem needing more expertise.
Manual can be viewed on a computer at
http://www.audiolabga.com/pdf/V32-V32L_Service_Manual.pdf

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1 Answer

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1 Answer

Remote was hit, shut set off, and can't get it back on. Sounds like timer is on.


First try turning the TV on from the Power button the set itself (assuming it has one).

If not, unplug the TV from the wall, wait a half hour, then plug it back in. It should come back on.

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