Question about Projection Televisions

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Channel changer keep constantly changing channels

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The button maybe stuck, if you mean the remote controller, try removing the batterys and see if it stops, if it doesn't stop you possibly have a stuck button on the television or possibly a fault which is doing this.

Posted on Nov 22, 2008

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  • Projection T... Master
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May i know the exact model / maker of your tv..?


Posted on Nov 22, 2008

  • micromaster
    micromaster Nov 22, 2008

    check all connection of yourtv.

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SOURCE: I have no front control panel working and changes channels

The front controls are called Tac Switches. They have a tendency of becoming corroded and sending erroneous commands to the micro. You can disconnect the lead coming from the control panel to the chassis and see if it quits. If it does, that answers your question. If you decide to replace them all, try Encompassparts.com

Posted on Jul 15, 2009

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1 Answer

RCAP46924 turns on by itself then constantly changes channels . Remote will not work.


Check for a sticky channel up or down button on the TV.
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1 Answer

My big screen tv keeps changing channels. when i set it on one channel


Hi,

YOu channel changing button on the TV have pressed in, just try pressing the channel button in you tv so that it gets released..

This should solve your issue..

Please rate this solution if this solves your issue, or leave me comment ill help further
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YOU HAVE BAD BUTTONS ON THE FRONT PANEL THEY ARE STICKING OR ARE SHORTED.

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I have no front control panel working and changes channels


The front controls are called Tac Switches. They have a tendency of becoming corroded and sending erroneous commands to the micro. You can disconnect the lead coming from the control panel to the chassis and see if it quits. If it does, that answers your question. If you decide to replace them all, try Encompassparts.com

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2 Answers

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look at the control board circuit -are there and signs of heat damage if so replace board

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Sharp LC37D44U. Display in top right corner keeps coming on. It cannot decide whether the audios is "mono" or "stereo."


I think you mean the channel/audio status display keeps coming on which normally indicates a poor reception (the channel beacon would come on when changing channels and then goes off) I think you should have your aerial system checked out.
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1 Answer

TV keeps changing channels by itself


Either the channel up or down buttons on the tv are most likely stuck.

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1 Answer

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Verify that you don't have a stuck channel up button on the panel. Next check the solder connections on the IR receiver (3 pins). Also check the +5 supply for excessive ripple. Any of these can cause odd behavior. Let me know how you make out.
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