Have a Philips 20mf605t/17. It powers on and with coax connected displays picture and audio fine on channel 4. Trying to change volume or channel the set resets. I can open and navigate the menu but trying to change any settings like source or auto channel the set resets. Tried factory reset but set resets. I can manually enter channels and it will go there for the first 13 channels. But I can not change tuner setting to get above that and on top of it I can not adjust the volume because the set resets. Tried to get it into service mode but cant change the source and tried holding down both volumes while turning on anyways with no luck. This set has been unplugged for at least two years so letting it time out to factory will not work. Have never seen a TV act in this manner before.

SOURCE: Multiple issues with tv

Pressing i+ button (bottom left on the original remote) for 5+ seconds worked for me...

SOURCE: Menu problem

The first thing to try when you lose any feature or function is to unplug the set from it's power source for a minute to allow reset. The second thing to look closely at is to see if any button on the set or remote is engaged, meaning stuck. Sometimes a button gets lodged beneath it's surrounding framework and blocks certain commands from operating. If these two things fail to correct it, then it's time for a repairman, which, believe me, we're seeing alot of these lcd sets in for repair even only a year or two old. Most have power or screen issues, but yours sounds like there is a failure on the main p.c.b. This board controls audio/video processing and all information sent to the screen and speakers. Good luck with reset because defective replacement boards are becoming more and more numerous these days, Russmann.

SOURCE: My 37" LCD Philips TV has mind on its own.

your internal controller board is going bad in lcd

SOURCE: philips tv

go in menu and change it to home  

SOURCE: Magnavox 32MF337B/27 power supply works and

hi i have a 50" magnavox that has a problem, i was looking at several websites and i find out the dirfferent posibilities.
in your case i have 2 posibble answers.
1) negative image
tv turns on and shots down in 2sec
flashing pixels on screen
dark image
has sound but no video
screen goes black and then return to normal picture
vertical color lines on screen no video
vertical color lines with video
vertical bars on screen
horizontal lines on the image
picture goes red after while
IT COLUD BE (X or Y or Z SUSTAIN BOARDS )

2) just left part of screen working
just right part of the screen is working
vertical and horizontal lines on screen
part of screen not working
some functions not working
no video but has sound
functions not working at all
IT COULD BE (LOGIC CONTROL BOARD)
TErry HerreRA