How can fix my tv GE model # 25GT506, chassis # CTC177AA?

This tv has sound but horizontal bars on the screen. I replaced
the microprocessor LA7610 and it improved the screen appearance to where I can see the menu display but, the the picture is still out of sync and only the horizonetal bars are showing. It go through the auto programming and pick-up
channels and change channels again, only horizontal bars are
on the screen.
ike eMAIL, ikeizuogu@aol.com, October 2004


done
I can not find the menu on the back of my tv
i am trying to set the cable stations

cinlou, April 2010
Go into your Eprom settings .They are found on the back cover of your TV. pUsh menu channel+ and on/off button at the same time after your tv turns on. go to Vol+ up to 76 then ch + to go to settings on the left side.Set No 1 to almost get the horz. lines to appear to have a picture then push menu to see if you have a good picture. To exit push on/off button.If this does not work you need to change your Eprom. OK....

Mel A/V engineer, May 2006