Received a shock from the control buttons while cleaning the screen. Now the volume is stuck on max. The indicator bar that shows when you are controlling volume stays on the screen. The remote does not solve the problem. The indicator light, next to the power button is flashing. Is this an easy fix? Is it more cost effective to try to get it fixed, or just buy a new TV?
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Re: volume control stuck on max AKAI CT2716
It seems that you most likely allowed some liquid to flow down to the circuit board. I can probably gaurantee that there is damage done to the control circuits for the uPC or the uPC itself.
You will have to give the set out for service. You may be lucky and it is only the control board including its electonics that has to be replaced. If the damage was done to the uPC or if there is a damaged buffer IC on the main circuit board between the uPC and the control panel this repair will be very costly compared to just replacing the control panel cirucuit board.
When cleaning a TV screen use a very soft lint free tissue paper. Use only some light spray of a very weak or diluted glass cleaner, or just water on to the tissue paper. Never put enough liquid that there is a possiblity of some of it dripping down in to the circuit board.
I personal use a light spray of water on a soft tissue. This is safe, and will not remove the optical coating on the screen surface.
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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.
have you tried physically unplugging the unit from the wall. wait 2 minutes. this resets the microprocessor computer part of the tv. then plug it back in. fixed. the computer is confused. unplug. plug back in
It looks as if your volume up button is stuck, either on the TVs manual buttons or the volume up button from the remote. To check if it's the remote, put the remote away from the TV, either in a drawer or take the batteries out. If the same check the Volume up button on the TV, it may be pressed down & stuck in this position. If this is ok most likely the volume button will be at fault & need replaced.
,,always unplug the set from AC,leave off a few minutes,,then re-plug back in,,that resets the micro--also,it could be the volume up button stuck-that would kill the other keys from working--you could try with a tooth pick to pull VOL UP back----THIS IS DANGEROUS --SHOCK HAZZARD!!! if someone is technically incline,with the back of the tv off,,turn set on and unplug the keyboard plug from the main circuit board while the set is playing--then use the remote and see if the fuctions returned-THIS IS DANGEROUS-SHOCK HAZARD---I REPEAT -DANGEROUS!!!! PLEASE BE CARFULL,if that cures the problem-you have a bad keyboard-you can just leave it unplugged and use the remote----JUST BE CARFULLLLLLL
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
It's rare but happens. Sometimes the volume button (or rather the plastic piece that activates the button when pressed) can get stuck. That or there has been a cleaning chemical leak down onto the button on the board itself and corroded it, causing a constant short.
As for the second Q, I feel that your TV may have received a shock through the audio line and the audio amplifier may have taken the hit. These problem can lead into multiple bad compontnts, such as a bad SMD IC on the bottom of the board.
press&hold DISPLAY button on hand set& VOLUME button on tv front cabinet.
turn on tv setpower switch while pressing & holding volume + & volume- button on front cabinat.the adjust menu is indicated with each parameter on the screen.
hope this helps
Sounds to me like there is an issue in the control circuit, and quite possibly the micro itself. If you have issue with both the remote and buttons I am thinking a microprocessor issue since they normally enter the micro at different locations and therefore would not have a single component cause a failure across both of them (Except the micro of course)
Best option may be a service center.
try this..turn off ur tv by remote,press mute followed by 187 then power,if this work u shall see reset underneath the sub menu goto reset..the tv must turn off and on.donot explore other u might kill your tv!!