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Re: distorted/noise in sound
I need more information, BUT if you have noise in ALL modes, this suggests that there might be a problem in the Power supply for the entire unit. if the power supply is supplying "dirty" power, obviously EVERYTHING in your all-in-one is going to have the same problem.
Another possibility is that you have a problem in the amplifier section - since audio from from each unit (radio,tape&vcr) has to go through the amplifier to get to the speaker. And I'm guessing you hear the noise through the speaker.
Those are my best guesses I have - given the information you've given. If you can give me more information I may be able to help you more specifically. Let me know.
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Buzzing in head at night may mean you are using a lighting system with a fader or a Triac controlled output. These put all kinds of garbage on the electrical lines that will get into audio system. Without more information about your problem this is only a guess. Model number brand and other things noted.
1) Clean the heads real well using denature alcohol. If this does not fix it then try spraying the record play switches with Deoxit contact cleaner. After that it could be the well known Akai garbage transistors that a Technician will need to change.
The deck if in working condition can be plugged into any AC wall outlet or the two AC outlets on the receiver. This is only for power, The Line outs and line in also have to be plugged into the Tape in and record out on the receiver as well. If the CT-F2121 need repairs that is what needs to be done first. Probably a whole set of belts.
I am not an expert in the repair of Akai units- most of the time I refuse them, however just to put you on the right path, the hum is coming from a power supply issue in the record audio section or may be in the bias section. You may need to put new Electrolytic caps in the power supply to resolve this. You can also scope the supplies on this deck to find the cause. I commonly work on Teac, Pioneer, Otari, Studer, Sony and better made decks. Some brands are real trouble and are more costly to repair due to poor construction. I have been doing repairs for 40 years so far.
to hear the audio fold back in prerecording mode you will need a tape that still has a security tab in it if not put some tape over the whole or even block the hole up
supply the tape unit with a good signal and then hold down the pause button and press the record and play button at the same time. you will then be able to monitor the sound you are about to record. use headphones as this to stops background noise in your ears and allows you to focus on the sound, "its another world inside your cans" adjust the input level until just peaking into the red. when you are ready to record leave the record button alone and the stop button and the play button just release the pause button and away you go. to stop press stop to stop recording say to cut out an advert or something just press pause.
I don't own and am not familiar with this device but my advice would be to turn all progs off. As long as you are not on the internet and you have no media connected then turning the anti virus off is safe as your computer is in a stable condition. I would also try using a different usb slot if you have that option as the distorted sound you are describing may be coming from interference with your usb port or cable. Good luck and I hope you manage to record those tapes!
Degraded tape, dirty heads (clean with acetone and Q tip but don't get on plastic), dry coupling capacitors.This assumes that the distortion that you refer to is dirty or fuzzy sounding audio. If a new tape, recorded and played back, sounds ok then your electronics are in good shape. That means your tapes are junk. If cleaning heads takes care of it, well that's pretty obvious. If your capacitors are dried out you will need to bring it in to a repair shop.