LG 37" lcd tv still won't respond to remote

[Meterman]

Hello Again,
Thanks for the 2 responses. I tried them both, and it worked until I shut the tv off for an hour.

The set is an LG 37" lcd tv, made in 2007.
The unit still won't turn on with the remote control, and won't respond to any command from it. Could I have a bad main board?

Thanks

[tom66]

Re: LG 37" lcd tv still won't respond to remote

Model #?
These are prone to getting dirt stuck in the "REMOTE IN" jack on the rear, causing intermittent remote functionality.
Also, sometimes the 3.4V from the power supply drops out, causing odd problems with the remote.

[Meterman]

Re: LG 37" lcd tv still won't respond to remote

Thanks,

The model # is:37LC7D-UB. I have tried contact cleaner in the remote in jack, it worked once. Then after shutting the set off for an hour -same problem again. Where would I check for the 3.4 volts that you stated?

Thanks again

[wreksta]

Re: LG 37" lcd tv still won't respond to remote

You wil have to open the set mate and measure from the psu connector connected to the main av board most psu's have al the pins marked out with votage ratings etc so check against the values on the board you will need a digital multimeter for this task