Question about Toshiba 36A40 36" TV

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Volume stuck maxed out

Turned on my 36" toshiba the other day and the volume went to max, only button that works on set or remote is the channel down button. i unplugged it and took out batteries from remote overnight. When i plug back in set goes on by itself at max volume and on the same channel everytime. LOL, help me please, im too poor to pay a tech to fix my set

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The intrenal switch that controls the volume up is shorted. you need to have it replaced. the short of the switch doesn't allow any other buttons on the set to work because the micro is recieving the volume up command. it's as if there is an invisible finger pushing the volume up button. the switch is a tachtile switch which is very inexpencive to repair about $50.00 total. if you want to do the repair yourself be aware there are voltages that remain in the set that can be harmful. 50% of the time the cause of these switches shorting is improper screen cleaning. some people spray glass cleaner directly on the screen, this is bad. the cleaner drips into the set and lands on the PC board where the buttons are housed. but I've seen the other 50% also which is hummidity, dust(not anyones fault this just happens), and simple switch failure. so becareful repairing it your self

Posted on Feb 10, 2008

  • Phil Abela
    Phil Abela Jan 13, 2014

    The adjustment is still there from low to high but the high is too low

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1 Answer

Volume at max and won't go down


This sounds like a common problem on these TVs. Try a factory reset:

1. Press and hold "Menu" and "Channel+" on the TV. (do not use the remote)
2. Using the other hand, press the Power button.
3. A small screen should appear in the top left part of the screen.
4. Using the remote, select "Memory Recall" and Enter.
5. Power off and reboot the TV and Computer.
6. Run channel auto-scan to regain the picture.

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The problem is on the board with the controls----if remote receiver is not on same board disconnect that board--if it is unsolder the vol and channel buttons--the front buttons have priority over the remote--buttons will look fine but the switch under each will be your problem---better hope it is as only other cause is a microprocessor gone mad.

If you have a Ohm meter I can tell you how to prove this--going to have to get at the buttons--if you want to prove it is or is not a issue with the micro switches you are going to have to unsolder or test them.

SD TECH

Apr 26, 2012 | Televison & Video

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What likely is wrong if volume is at max and cannot turn down--the volume down button on the set is bad---seen this and to say the least irritates me.

The buttons on the set each engage a tiny switch--a momentary one--means only should react when pressed but they fail in exactly this way.

Remote is number 2 in line--that is to say the buttons on the set have priority over the remote control.

Only way to prove this is gain access to the vol up button/switch and unsolder the switch (two pins).

If set now is normal (thank god) you can either leave the switch out or replace the board with all the buttons/switches. Remote will still be able with defective switch out to operate sound.

If you think your problem is bad I have seen same issue with channel up and down buttons--always it is the switch.

SD TECH

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i had this problem using dish network. my dish remote went bad so i got a new one and as soon as i programmed it volume and channel had mind of its own on both the dish remote and the original tv remote. you would hit it once and volume would go to max and vice versa when going down. ended up being the new remote was set on the uhf setting and i had to reset to the ir setting which is a small switch in remote next to batteries and then reset system info in dish receiver. problem went away instantly. both remotes work fine now. took two days to figure out and spent hours on internet looking for solution but no one had one. hope this helps.

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1 Answer

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1 Answer

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May 16, 2009 | Televison & Video

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If the volume buttons work when using the Radio, then the buttons on the Remote are fine.
Now if the volume on your TV is set to MAX and you can barely hear it.
The issue lies with your TV.. ()
Now if I understand correctly or if I am to assume you are using a Reviever.
If the reciever is used for all volumes... If this is the case.
I also assume the volume on the TV Speakers is set to off
Therefore when you use the Radio/DVD the volume control is using the Reciever volume.
and when you switch to TV it uses the TV volume thus the TV volume is not gonna work as well.
2 scenarios
1 The TV volume even at max is not giving you enough power to get the low receiver volume
2 the Receiver volume is at max and barely audible.. if this is the case just manualy adjust your TV volume to get it to a decent sound level.

Hard to explain but I know the 2 issues can be fixed.

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Volume go up to MAX, power button does not work


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