Question about RCA F36450 36" TV

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The volume constantly goes to it's lowest setting. I can adjust it with the remote as well as from the TV but it immediatly goes doen all the way. it constantly displays the volume bar at the top of the screen. What's going on?

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The front key switch (or remote key sw) vol- is stuck on or has intermittent contact. It is probably the front key switch but take the batteries out of the remote to confirm it's not the remote. if that confirms it then it's the front key switch which can only be accessed by removing the entire chassis and unplugging the front keybad to check.

Posted on Oct 04, 2009

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1 Answer

Volume goes max and will not lower.


Hello

Please remove the batteries from the remote and check whether it is possible to use the local keypad on the TV? If the volume increases, it may be a problem in the local keyboard.

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There is some fault with the control section to volume circuit. Contact any experienced service technician. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock! Instead, contact the nearest service center.

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Also have the same problem with ours - purchased a 55" lcd/hdtv and have to constantly adjust volume especially between commercials and programs. Can bearly hear the program turn it up and it blasts you out of your seat at commercial time. Had cable company out and it is definitely not the cable. Also have a problem with TV constantly shutting on & off. Does anyone have a solution???

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I have an 17" (2 in1) n Tru Tech LCD TV (with built in DVD player) The volume can not be adjusted, whether I is the remote or volume control on the TV. It goes to#15 and stays at that volume. What Can I...


I assume "#15" is the displayed volume setting on the screen when you try to adjust the volume. Is this the maximum? If so, perhaps the front panel volume up button is stuck on (not the remote control; nothing else on it would work if that were the case).

Another likely cause is the TV's microcontroller chip or memory chip that goes with it has a fault in its volume control address location.

You can check for a stuck button by comparing its feel with the volume down button when you press it. If it is stuck, the difference in action will probably be noticeable. If you can't tell any difference, the set needs internal repair.

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I think I had the same problem. This is how I fixed it.

I have my vizio 42 hooked up to a Harmon Kardon surround sound, and the digital cable box. Essentially, I can adjust the volume 3 ways - through the tv, cable box or av receiver. The humming sound happens when you have the volume maxed out on the av receiver and not the cable box.

For example, the sound level on my Harmon Kardon goes from -10 (lowest) to 10 (loudest), with 0 being the middle ground. The buzzing was happening when the Harmon Kardon was set to 10, and I was using the cable box volume to adjust the sound. To fix it, I turned down the volume on my receiver to 0, which may be about 50% max volume of the receiver. Then, I switched devices and used the volume on my cable box. This got rid of the static I was getting. Hope that helps.

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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.

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1 Answer

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This sounds like there is a stuck button. With the TV off, try each of the panel buttons. You should feel the button engage. If not, that is the faulty one that should be replaced. Also, check to be sure that the plastic covering that extends to the actual switch inside the set is not broken causing a switch to be stuck on.
Keep us posted.
Dan

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1 Answer

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The front panel control assembly, or the circuit area for this panel most likely has a fault condition.

I have also seen some of the button switches fail on the control panel.


Jerry G.

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Download mp3gain (freeware) and it will adjust the volume in all your mp3 files down to a reasonable level. Try 84 dB. Then sync them onto your phone.

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