Toshiba (Model : 36A43) - volume goes down automatically
I have a Toshiba. Following are the details :
Chasis : 7AC0302
Problem : Volume goes down automatically. Let me explain the scenario. After
switching on the TV, let’s say I am on National Geographic channel. Volume
would be zero. If I try to increase the volume (either by using the remote or by
using the volume button), I can see the volume green bar going up and can hear
the sound. But, if I take my finger off the remote volume button or the TV
volume button, the volume goes down to zero. Can you
please help me.
I am having same problem on 32 inch same problem. After playing with board with no results,I tried front buttons and found that if I held the power button in ever so slighItly as not to turn it off, it fixed problem which is the micro on/off switch, I removed the switch and used the remote and everything is back to normal, I am about to insall a used micro switch after I finish typing this but I am sure this will clear up volume problen and menu going crazy problem if not I will just leave micro switch out and use the remote, and I will get back to this board only if that micro switch still causes the problem, so if I don't post in next hour the problem is fixed and I'm more than glad to help.
I have the same problem with a 40RV52U Toshiba TV. My set is not even 2 years old. My parents have the same problem with another Toshiba model. I will never buy another Toshiba TV again. The volume used to go up uncontrollably. Now it can go either up or down on its own. I am sick of it!
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check the front button plate on the front of the tv very carefully.if it has been hit with something and either or any button is pushed in,it will not listen to other commands.make sure each button has a distinct click when pushed.a frozen button will cause other things not to work.it sounds to me like two buttons are making contact,and they are beside each other,so the button plate is crooked or warped.
front control board needs to be replaced or eprom is corrupted one or the other, would have to do a couple of checks to know for sure, a tv tech can tell you 20 minutes after he gets there, neither part is a big bucks repair, hope this helps, BMW Rider
I had the same problem with my 36A43 also. I found by pure accident that if I pushed and held the MENU button on the front of the TV that the volume quit going up and down and I could control the volume with the remote. So far it is working all I did was jam 2 or 3 tooth-picks in beside the MENU button to hold it in and it is working so if this helps you any good luck its a cheap fix for an old TV
To all of you, change the tact switches (all of them) on the front panel control board and end of problem, very common problem, part number for these switches is 23344443, any or several will become "leaky" and give all sorts of symptoms, MANY times this is caused by using windex or similiar type cleaners, it gets into the switches and corrupts them, this will fix-ya, BMW Rider