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Take the batteries out of the remote or cover the IR emitter to determine if the remote volume button is the problem. If not then check the button on TV utself to make sure it's not stuck
Do you have something new in the room that emitts IR signals?
You need to isolate the TV from a possibly rogue IR signal.
Try turning everything off in the room, unplug everything except the TV and Cable box if you are using one.
Turn off all the lights and turn the TV on and select a channel.
Is everything working, is the volume OK?
If you are still experiencing volume issues then this is TV problem and you will need to see a service centre or repair shop.
But if the sound is OK, then you can now start turning things on one at a time to see which device is causing your issue.
It could even be a light that is flickering at just the right frequency to cause your issue.
If it is a CFC or LED light, try a different manufacturer
Hello,
it would appear Volume down button is either shorted or something is constantly pushing on it forcing the volume to go down. You could try to press on the down button and see if it feels like it pushes back a little bit. The most common thing is that it gets sticky from grimy, sticky fingers, try to un-stick it using some alcohol on a cotton swab. Other that the only way to fix this is to take the tv apart and figure out the button problem that way!
Good Luck!
Rich Lilja
this is a bad overheated chip or chips the only thing you can do is when it does it again open it up with it unplugged see if a chip is very hot to the touch if you find one or two: heat sink them with an aluminium heat sink and thermal paste to keep them cool.
remove batteries from remote control and adjust volume to desired level. If the volume stays the same then there is a problem with the remote. If the volume lowers again then the problem is with the TV. the volume button on the TV or on the remote may be malfunctioning. Hopefully it will be on the remote. If it is the remote, take it apart and clean it with damp cloth. after allowing it to dry, re-assemble and try it out.
1st check to see if your remote volume down button is stuck. 2nd do you have wireless internet (router) or any other wireless devices phones,ceiling fans, another Toshiba remote, if so try unplugging them (or remove the batteries if it's a remote) while it's changing the volume one at a time. If a different device makes it stop try changing the channel on it. Also make sure the t.v doesn't have a mind of its own and remove the batteries out of the t.v remote, let it ride for a couple days if it happens without the remote being in play then you know your t.v is acting strange, if it stops then starts back up when you start using the remote again then you know your dealing with a remote issue. Sometimes Freq.'s merge causing remotes/wireless devices to conflict with each other.
When the volume increased did the display show it doing so as if someone was turning the knob? I mean did the volume go from like level 15 to 30 or did the unit's level stay constant while the audio volume increased? Were you alone or sharing the room with a jokester who has a universal remote? Does this problem occur when the batteries are removed from your remote? Are you sure the 'volume up' button on the unit itself is disengaging properly after being pressed?
Enasni,
It's probably a tact switch problem, something we call in the industry awindex syndrome. The tact switches, depending on the ones effected, can turn the tv on/off by itself, channel +/- at will or in your case control the volume.
Tact switches are not expensive to replace but a bit difficult to get to if you're not trained. They are at the very front of the board - looking from the back - and some disassembly may be necessary to take the main board out.
A reputable shop wouldn't charge much do fix this problem, switches are about a dollar a piece.
Good Luck
Bill
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