Question about Ultra Televison & Video
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Posted on Jan 02, 2017
Could be a problem with the down volume button on the tv. the board
it's on ir its harness. Check them all. Make sure the volume buttons
plastic actuator moves freely and is not stuck.
If these parts are all good, you have a problem on the main board. You may have to trace the control lines as far as you can and check any capacitors along the way. If you have an oscilliscope you can test the lines to see if the up volume is working correctly. If there is noise on it, you might find a bad capacitor if you can trace it back far enough. Schematic helps here.
Of course, make sure nothing is shining on the sensor window on the TV. You might want to scope that line as well (IR sensor line).
If none of that helps, get hold of Viewsonic and find your closest service provider. You can order a main board from them.
Of course, you could try just using the audio out jacks to an amplifier or a surround sound amplifer. Then you would use the remotecontrol for the surround sound system to control your volume.
Bet you were going to buy one anyway right?
Posted on Feb 14, 2008
Try taking the batteries out of the remote or taking it out of range from the tv. Then try turning the volume up on the Tv manually. If the volume continues to go down on its own then it is a problem with the tv set itself. If the problem stops with the remote out of the picture then it is a remote problem. As far as powering the unit off may be a similar issue. If there is an on/off button on the tv and it works to turn the power on but not off then it is a tv issue. If the remote turns the tv on but not off it may be something as simple as the wrong code being programmed into the remote(universal remote) or if it is the factory remote it may be an issue with that. You could try getting a new universal remote that works with your unit.
Posted on Jul 10, 2010
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