My tv has started turning down the volume as soon as it is turned on. the volume box stays on the tv for minutes after it reaches zero. volume does work but as soon as you take your hand off the button starts going back down. took the batteries out of the remote nothing has worked
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: volume turns down
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.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The main system control memory IC to this TV is damaged. Replace it. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Try to check the pannel and the remote "volume down" buttons - one of them could be stuck in a pressed position.
It usually happens on the remote when dirt or sticky substances accumulate around the rubber buttons - you need to disassemble the remote and clean the rubber pad and the remote housing with some ethyl alcohol and cottonwool, also clean well the holes on the housing where the buttons protrude.
If you also decide to clean the contact tabs on the rubber pad and the circuit board, you should clean them gently to avoid damaging the conductive coating.
Try these steps: Turn the volume on your converter box all the way down. Turn the volume on your TV up to ½ way. Now turn up the volume on your converter box until it is at a comfortable level. More information at http://www.ezdigitaltv.com/index.html
Not really a solution, but a workaround. You can enter public mode menu and disable power off by power button. Hold the remote in one hand (you'll need it later), and with the other hand maintain "volume " and "input" buttons on the TV, and press the power button. Maintain the power button depressed otherwise the TV will power off. You can release the other buttons. The TV should display a "Public mode" dialog box where you can input a 3-digit password. Enter "027" with the remote. The TV should display the public mode menu. It is operated with the cursor arrows of the remote. Highlight the "power on fixed" item. Change it to "fixed". Then highlight "execute" and press OK on the remote. You should now be able to release the power button without turning off the TV.
In Sharp's own words : In "Fixed" setting, the power-off by the power key of the unit is invalidated and the image is kept being received. The power can be turned off by stopping the power supply from AC.
Note that you won't be able to turn the TV off with the remote either.
Also, if you wish to enter public mode menu again, you will have to disconnect and reconnect the power cord on the back of the TV while maintaining "volume " and "input" buttons depressed, because the power button is no longer operating.
toshiba 35a44 I had in shop would not turn on initially,when Qa01 was replaced I was able to turn tv on, but after a couple of minutes volume went all the way down, vol display bar on screen and power and menu keys would not work, remote control function did not mater. after replacement of QA02 mpu no results. desoldered volume down and up keys and sprayed chassis with flux remover on both sides of chassis and sumerged vol keys in alcohol solutions for 10 minutes, restored them in chassis and the problem was corrected. QA01 and QA02 did not had to be replaced there was a contaminant problem on solder flux that was causing the problem.