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Tape deck running slow

My TEAC A-3300SX RTR tape deck runs at approx half speed

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Re: Tape deck running slow


Does this happen with all tapes?

Posted on Jan 18, 2008

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Why does tape go slow, then stops?

Gary hi! I am not sure whether your machine is solenoid controlled but if it is then I would suspect the solenoid that operate the capstan roller to be overheating, I had the very same problem with my Studer and Revoxes and when I smeared some heat sink compound (Available from electronic stores selling components like Radio Shack etc.) and fit if the chassis is cast aluminium like the better manufacturers use,as a heat sink. You can chech the belts and the lubrication of the drive system but I doubt that. Clean the capstan roller with denatured alcohol or cleaning alcohol.

Nov 11, 2014 | Tape Decks

1 Answer

My Teac W450R works except the RH side RPM speed ti too slow. Does it need lube or cleaned? All functions work well otherwise.

It may need a calibration with a speed tape and frequency counter or wow and flutter meter. You should make sure the Pinch Roller is clean too.

Mar 06, 2014 | Teac Tape Decks

1 Answer

Nakamichi BX 300 tape deck runs slow in play,belts and idler have been replaced

There is an adjustment in the motor that sets the speed however you need to have a frequency counter and speed alignment tape to adjust the speed correctly. There was also suppose to be oiling of the mechansm at the time the belts were put on.

Jan 05, 2013 | Tape Decks

1 Answer

How do I connect a teac ax-20 mixdown panel to a teac a-3340s reel to reel?

It's a 4-in, 2-out panel. Well, you attach up to 4 INPUT channels (labeled plainly on it) and run the two output channels to any two of the the Record In connectors on the Tape Deck.

Sep 11, 2011 | Teac Tape Decks

2 Answers

I have a teac 3340 reel to reel recorder and believe it can only function in 2 speeds 7 1/2 ips and 15 ips. I have many reel to reel recordings that are 3 3/4 ips. Is there an adapter or gadget I can use...

In short, no. if you look closely you will see the Teac 3340 has a much larger/thicker capstan shaft than other Teac reel decks. This feature allows the faster tape speeds...7 1/2 and 15 ips. In order to slow down the Teac 3340 you would have to change the flywheel to one from another deck that was made to run at 3 3/4 and 7 1/2. Which is possible but some you would have to find a slower speed flywheel from another Teac deck. Also to maintain performance, the bias and Eq positions for the slower speeds would have to be readjusted from 7 1/2 and 15.

May 11, 2010 | Tape Decks

1 Answer

My Teac 4070G reel to reel tape deck rewind and fast forward functions work, but the play function does not. Any ideas? Could it be a circuit?

Without actually seeing your Teac reel deck, i suggest you verify that all fuzes in the deck are good..not blown. Also with a tape correctly installed..ensure that left and right tape tension arms are held under tension/ closed by tape tension, also ensure the capstan shaft is rotating... look in back to ensure the capstan drive motor is running.. if yes, and tape still will not play... problem could be a stuck/failed solenoid, dirty or corroded push buttons, or corrosion on contacts where rear circuit boards/plugs insert into other boards.

Feb 28, 2010 | Tape Decks

1 Answer

Teac A1200U R/R runs slow

This could be anything from a defect in the power supply to a defecive motor to a slipping belt. Without seeing the actual unit, it will be near impossible to determine which is the root cause of the problem. Given the unit's age, it should get a complete overhaul including the replacement of all rubber parts. Parts are still available for these. Expect a parts cost in the $50 range. Take it to an audio repair shop that has been around for a while. They will be gald to get to work on such a unit.


Nov 26, 2009 | Teac Tape Decks

1 Answer

Playback slows noticably after several minutes

Sounds like the drive belt is worn.

May 26, 2009 | Tape Decks

1 Answer

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