Question about Curtis CMC13101 Combo
Assuming you are not attempting to play it at ear shattering levels, this may be due to an alignment problem in the IF/audio demodulator, a bad audio IC or other circuitry, bad connection, or a defective speaker.
If your TV has an earphone or audio line out jack, try this to see if it is clear. If so, then your problem is in the final audio amp or speaker(s).
If only one channel of a stereo TV is affected, it is almost certainly the audio amp or speaker for that channel. Interchange connection to the two speakers temporarily and see if the problem moves.
If the problem is at all intermittent - try gently whacking the TV - then it is likely a bad connection - either a cold solder joint or a dirty or tired IC socket.
The audio amplifiers in newer TVs are almost always ICs and replacements are usually readily available. If the IC is in a socket, remove the IC, clean the pins and socket contacts and reinstall it. Sometimes, the contacts on old socket lose their springiness and do not provide solid connections. Such a socket will need to be replaced.
If the set uses discrete transistors, it s also possible for one of these to become noisy.
If your TV is fairly old - 10 years or so - this may be an alignment problem requiring tweaking of a coil in the sound IF. See your service manual. It may be possible to have similar problems with newer TVs but this is relatively rare.
There could also be bad electrolytic capacitors, probably in the power supply area. Even though you might think this would result in hum and there is none (even when there is no audio in the program or the sound is turned down) dried up caps can result in distorted sound that may sound like a sort of clipping. An ESR meter is best for testing (with power off!) but carefully jumpering known good caps across suspect ones (again with power off, then turn on the set and check), will eventually find the bad one(s).
Hope this helps...
Posted on Jun 01, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Oct 07, 2013 | Philips Televison & Video
Apr 11, 2012 | 2008 Toyota Avalon
Mar 04, 2011 | M-Audio Delta 1010LT Sound Sound Card
Jan 21, 2011 | Televison & Video
Jan 21, 2011 | Toshiba Satellite 2450-401 Notebook
Oct 05, 2009 | Philips SAA7130 TV Tuner/FM Radio/Video...
May 14, 2009 | Audio Players & Recorders
Apr 16, 2009 | Audio Players & Recorders
Mar 12, 2008 | Televison & Video
Aug 25, 2007 | Gigabyte 7VM333M-RZ (GA-7VM333M-RZ)...
66 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: