Question about Audio Players & Recorders
I have a Teac V-350C cassette deck that records at a very low volume level. The volume level indicator shows a normal volume level during record, the sound level also seems to be normal when monitoring the sound through the deck's headphone jack. There is no distortion in the sound, it just records at a very low volume level. Cassettes recorded on other decks play at a good, normal level on the Teac. So, the problem seems to be record only, not playback.
As I remember this deck is may not warrant the cost of a repair but in case you are attempting the repair yourself, the first thing to do is clean the heads real well. After that get a schematic off Hi Fi Engine if they have one and you will have to trace where the signal is missing. If both channel are the same it is possible a electrolytic capacitor has shorted in the Bias section of the record circuit. Levels do not shift downward all at once two channels at a time unless there is a common problem. I have know capacitors of the 10 V type to short and take the entire function of a deck out. Change that one 10 V cap and the deck works again. Of course this assumes you have the ability to change a electronic component. If not off to a technician it goes.
Posted on May 03, 2013
Tape decks have a record amp, depending on the age of the machine it will probably be an IC. Yours might have failed. See if you can identify it or try and get a C diagram. To locate it follow the leads from the head. If your lucky it might have 'Rec Amp' on the board. Their maybe a preset marked 'rec level' for each channel. The (IC) box with legs - near them will most likely be it. Don't adjust the presets unless somebody has tampered with them before. (they will look to be sitting around the middle if they are OK).
Posted on Jan 25, 2009
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Posted on Jan 02, 2017
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