My mother-in-law has a Magnavox 51" rear projection tv and she is unable to get anything to work. There is "mute" in one corner of the screen and a "C" in the other corner. Nothing works on the remote. Nothing will make it go away. Any ideas?
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Re: Mute and C on the screen
The TV is in factory or demo mode - turn tv off and unplug it from wall outlet for 30 seconds - turn tv back on after 30 seconds and see if problem goes away. If not, press the (volume -) and (channel -) buttons repeatedly for about 10 seconds to see if "C" will go away. If this fails call 1-888-PHILIPS for further assistance (they do Magnavox also).
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Go into the service menu and turn down the red push and red cut a few notches. Write down every value in the service menu and be careful to make sure you don't change anything else. Also, turn down the brightness a couple of clicks and the red glow will be gone.
Or, try this - Press Mute on the remote control twice, press Mute a third time and keep holding at the same time, press the Menu button on the TV front panel. If you do it correctly, you will see a small S on the screen. Congrats, you are in service mode. Press Menu on the remote to get to the adjustable settings. Be careful not to change anything without writting the original value down first. Also be careful of hitting other buttons on the remote. To reduce red push, Use the channel up down button until it says RCUT. Adjust the value using the volume button on the remote. I recommend setting RCUT to 80H, which is the preset value according to the service manual. To exit Service Mode, simply power off the TV. Good luck.
You may still one more resistor opened , samsung most of the time its 2 low ohms but can be 3 it will be same value as other 2. I think they are 2.7ohms or 3.9 How to Enter Service Menu for convergence Turn TV off Press Mute 1-8-2-power now you should be in convergence use vol- and vol+ to select an item Use mute and menu to adjust when done Press ADD to save adjustments made.
Basic TS - Turn tv off and unplug from wall outlet for 30 seconds. Make sure cable or sat box mute is off. Turn back on. If still no sound, just make sure that a dvd player, vcr or anything else connected to TV has no sound. Check antenna as well as cable or sat channels. If nothing has sound, call a serviceman to check out.
Picture mute is activated ,it can be vertical amp faulty or one of the c.r.t drive faulty,therefore the mute circuit is active.Increase G2 voltage for the any of the three c.r.t and notice screen .Vertical amp is faultry than you will see horizontal line across the screen and if you see full screen with flyback lines ,means c.r.t drive is having fault.isolate one by one c.r.t drive.