There's a very distracting hum/noise when any audio plays from the tv. The hum goes away when muting, and when the volume is at zero. The hum at level one on the audio graphic display is the same noise at any other level. My cable box does not have the ability to adjust volume, so it shouldn't be getting too much signal. Any ideas?
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Re: Hum in the audio - 32'' Proscan 1080i
Does the hum occur when playing a dvd or only when watching tv ? if the hum occurs only when watching tv, i would like you to disconnect the cable line from either the wall or the back of the cable box and see if this hum disappears. if the hum disappears call your cable company. you have what is called a " 60 cycle ground loop ". hope this helps.
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there is a bad or what i call intermittant connection on the power supply board. when the bar and hum appears try firmly bumping with the palm of your hand the side of the set. if the hum and line go away then your set will have to go into the tv shop and the connectors on the p/s mod have to be reseated also the solder connections should be checked... this should help you a lot.
It could be a few things. The first thing you want to look at is make sure that the microphone is muted in the mixer controls of your audio cards. These settings are located in the control panel. If you need the mic, look under the advanced settings under it and disable the 20 db option for it.
I found this solution on another review, hope it works Model Number:Proscan 26" LCD HDTV w/ Built-in DVD Player26LB30QD "pro: good price, TV picture is clear and DVD player is compatible well. con: sound noise There was hum when I first turned the TV on, then I followed these instructions (found it from other review) to fix the hum issue: 1. Turn tv on 2. Input mode should be tv 3. Turn volume to zero 4. With remote enter 9 8 7 6 5. A menu will appear on left side 6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice, 7. Turn up volume and listen if hum is gone." It works,no hum."
1. Turn tv on 2. Input mode should be tv 3. Turn volume to zero 4. With remote enter 9 8 7 6 5. A menu will appear on left side 6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice, 7. Turn up volume and listen if hum is gone.
Hi, I sent an email regarding the issue to OnCorpus (the company who makes ProScan)
This is what I got back:
--------------------------- Thomas, Follow these steps to correct humming issue: 1. Turn tv on 2. Input mode should be tv 3. Turn volume to zero 4. With remote enter 9 8 7 6 5. A menu will appear on left side 6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice, 7. Turn up volume and listen if hum is gone.
John firstname.lastname@example.org ---------------------------
I can't confirm if this works at this moment since I don't have access to my TV.
The humming noise is cause by defective capacitors in the power supply 12 volts line. These capacitors become defective due to the amount of heat surrounding them.
I repair these power supplies. If you need further assistance, write to email@example.com
In most cases it's the Cable issue. Either bad Cable Box or the Wires are not grounded properly. Disconnect the Audio Cables or the COAX cable from the Cable Box and see if the Humming noise goes away.
More often than not, the humming sound on any electronic device is brought about by the AC side of the power supply not only of the device itself but also all other equipment it is attached to. In your particular case, it maybe introduced into the system from:
(coaxial) cable TV leadin;
connections of DVD, VCR, game consoles and others;
electrical noise from lamp dimmers, lights with electronic ballasts, wireless phones.
It is interesting to note, that the noise could be from other appliances plug in the same circuit as the TV, you of course could try plugging it into another outlet or branch. In some instances, you could even try filtered regulators similar to those used by desktop computers.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.