The tape deck to my head unit keeps switching sides nonstop when u put a tape in. i didnt try to clean it cuz i didnt have the cleaning kit thing and its not hooked up right now. wanted to see what it could be first.
also, the sound only works on one side. is there a fuse i can replace in the head unit or did it just decide to stop working completely. right now it is wired to one side so i have sound on all speakers.
any advice or anything you know would be very helpful with repairs.
The adapter is tripping your radio's auto revere. The radio thinks it's
at the end of the tape so it switches sides. Tape adapters especially
the cheaper ones are made a couple 100,000 at a time an sometimes the
machine that makes them is off so it makes bad adapters. If you look at the face of the adapter you will see a silver
head in the center just to the left an the right of the center hole
you'll see two smaller holes one on each side. look inside these holes
an make sure there's nothing in them no padding or plastic tabs. If
there is anything in these holes remove it. This is whats tripping the
auto reverse .These hole should be about a 1/4" deep . next with a small
razor blade shave all four sides about the same as the thickness of the
blade this should remove any burrs or misshapen plastic.
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There are 2 long switches, maybe 4" long, called record/play switches. These can certainly cause this. Try cleaning them with the power unplugged. You would turn the cassette deck on end, so the switches are vertical. Use LPS-1 or LPS-2, and spray a very small amount in the end. Work the switch back and forth and see if that helps. Good luck.
The unit has to come out of the car and taken to a auto Stereo repair shop. I would guess without seeing it that there is a loose belt that is causing a detection of the deck not turning the reel the detector is on and that tells the electronics the tape has stopped and if there is no drive in the other direction it does the same thing. If a capstan belt breaks there is no drive in either direction. The belt may not be hard to replace but you need to know the routing and the size then just order from MAT Electronics or MCM Electronics and put it in. I also think the Head and Pinch Rollers are going to need a real good cleaning. Use Naphtha for that. I serviced car stereos back in the 80 and 90 not so much anymore. If you can do it depends on your technical ability.
It all depends on where the squeak is coming from. Some very clean rubber parts make kind of a squeak but I don't think that is your problem if you use cartridge cleaning systems. The real answer as a 40 year plus Tape Deck Technician is to get in there and see what is causing the squeak- it may need some oil in reel table, Pinch Roller or even the Capstan Bearing. Manufacturers do not like to put oil into unit as it makes for no repairs and you will not have to buy a new one. I worked at Teac but this unit is far after my exit- I still do repairs full time on the product though. I am sure I could resolve it- I am in the Chicago are.
Cassette decks have sensors on the reels which tells the deck when the tape is at the end. When the reel stops the deck switches the direction of the tape and sometimes the position of the head(depending on the deck design). Most common problem is the tape is hard to turn, or the deck won't turn it ( deck thinks it's at the end, click, still won't turn, click, won't turn, click) you should fast forward and/or rewind your tapes from start to finish once in a while to keep them lined up(narrow spool/less friction), you shouldn't have to but it works. BUT,...your problem sounds like a slipping or broken belt/or dirt causing the problem. Take the deck out to have a look and clean the capstans(rubber rollers)belts,heads with alcohol and a Q-tip while your at it. Dirt's usually the main culprit and if you do have some other problem, cleaning it is always a win/win (It will also sound better clean)
try cleaning the record head, Most people only clean the play back heads on tape players, the record head is just off to one side of the main playback heads , you can use a Qtip and rubbing alcohol to do the cleaning
Possibly dirty video heads. I would suggest that you run a head-cleaning tape through the VCR deck to shift surface dirt off the heads. If that doesn't work, or it sort of works, but not satisfactorily, unplug unit, carefully remove top cover, and with the VCR deck in view, gently clean the heads with a soft cloth or special cleaning stick (these look like flat q-tips but are intended for VCRs - available from electronics/hobby stores) and some alcohol (methylated spirit will work if that's all you got - but isopropyl alcohol is recommended - available from the same places as the sticks) clean the guides (gently so as not to disturb their alignment) clean the pinch roller/capstan shaft - CTL (on the right-hand side of the drum) and FE (left side) heads as well. The whole tape path should be carefully cleaned. Refit top cover (carefully), plug unit back into power, wait until it completes its startup/loading procedure, then put a tape in. You should now have a playback picture with the sound. You only need to do this as required if head-cleaning cassettes don't work properly.
If none of the above cures your problem, then the heads are abraded/worn - let's hope that isn't the case here. This model does not use a built-in head cleaner.