LG LCD 37'' TV. cannot change channels or turn on/off tv. Only sees on screen ''catv 94-2'' and below that the word ''scrambled''. with a high pitched squeal. How to fix this problem?

Download LG 37LC2RR Owner Manual http://data.manualslib.com/pdf2/25/2438/243725-lg/37lc2rr.pdf?887046543bff95c77488b6b2ff845e22

pg 10 select the desired input source,
AUTO PROGRAM: CHANNEL SEARCH
pg44
pp

hook a different tv up to the aerial and see what happens

Is it going one way - channel 1-2-3-4-5 bottom to up or any way at random. Find out which way and check the channel button on the TV to see if it is stuck.

Hello

Auto presetting channels you wish to know I thinks, if so do the following.

To preset a channel or to change a preset channel, follow the procedure below.

1) Press the POWER button to turn on the TV.

2) Press the MENU button so that the menu display appears

on the TV screen.

3) Press the CH(annel) ? or ? button to point to "CHANNEL SET".

Then, press the VOL(ume) ? button.

4) Press the CH(annel) ? or ? button to point to "AUTO PRESET CH".

Then, press the VOL(ume) ? button.

The tuner scans and memorizes all active channels in your area.

? The TV distinguishes between standard TV channels and cable (CATV)

channels.

? When AUTO PRESET CH action is completed, the lowest memorized

channel reappears on the screen.

? When you press the CH(annel) ? or ? button after selecting "AUTO PRESET CH",

the tuner will stop at the memorized channels only.

? The TV may recognize TV channels to be CATV channels by receiving conditions. In this case,

try AUTO PRESET CH action again in the fine receiving conditions.

? When AUTO PRESET CH is activated where there is no TV signal input, "NO TV SIGNALS"
will appear on the display after the completion of channel scanning.
OK.

go to menu settings, channel settings, set tv to CATV for cable, AIR for analog, or HD for high def.

Make sure you have the correct cables depending on your connection

Try One of your working TVS and connect it to your cable outlet of the TV that is having problems. If that TV Does not work then there may be a degraded fitting or the Leg coming of the splitter to that outlet could have a Low Signal Problem
Next Take the First TV that was not working properly and put it on the cable outlet of one of the TVs that is working properly and if the TV set works on that Channel then you know it is not your TV that it must be the cable

Hi, I would buy your TV

According to the manual, follow the steps below to program channels on your Quasar VV8220 TV:

1) Hold the CHANNEL MEMORY Button on your remote in and press the 1 key
(a box will come up where you can shift between TV & CATV --
you will want to be on CATV (for cable channels).

2) Press the 4 key which will change from TV to CATV -- make sure it is
on CATV or if it is already on CATV, press the 5 key.

3) Press the 4 key (the auto set guide will engage and go through the channels).

Hope this is helpful.

Get an antenna hooked up, even rabbit ears should pull in a few analog channels. Set top boxes will only output Ch 3 (switcheable to ch 4 on the back if needed) and cable may be dead or only give you scrambled CATV channels. You need to set your tuner to "antenna", not CATV, IRC,HRC, or ATSC (if you have a digital tuner) and do the setup again. You could have a bad tuner at worst, and all is not lost, just hook up a VCR via RCA cables and use the VCR tuner to change channels. Keep TV on Ch3.

sounds like screen control is set too high