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TEAC A-2340

4 Channel Simul-Sync Tape Deck (1972)

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TEAC A-2340


The Teac A-2340 is a semi-professional tape deck capable of simul-sync recording, four channel, stereophonic and monophonic recording and playback.

It offers operating speeds of 7.5 and 3.75 ips.


Track system: 4-track, 4-channel, stereo/monaural/multi channel system

Heads: 1 x record, 1 x playback, 1 x erase

Motor: 1 x capstan, 2 x reel

Reel size: up to 7 inch reel

Tape speeds: 3 34  7 12 ips

Wow and flutter: 0.12% (7 12 ips)

Frequency response: 40Hz to 18kHz (7 12 ips)

Signal to Noise Ratio: 48dB

Crosstalk: 35dB

Input: 100mV (line), 0.3mV (mic)

Output: 0.3V (line)

Semiconductors: 24 x transistors, 8 x diodes

Dimensions: 522 x 170 x 440mm

Weight: 20kg


service manual   English - kfrolkeymyfairpoint

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re: A-2340

does anybody no why and how to fix a problem with the tape hitting the heads on fast forward and rewind.....I don't know what you call the two little things that should push the tape away from the heads but they don't and tape drags over the heads.....other wise it works great..
thanks for any help

re: A-2340

The pins that extract the tape off the head in fast forward and rewind are driven by the pinch roller mechanism. When play is depressed, the pinch roller comes in contact with the capstan. At the same time the arm the pinch roller is mounted to (inside) moves up, it also raises the pins out of the way of the tape. When stop or fast forward/rewind is depressed, the solenoid that lifts and drops the pinch roller is deactivated letting both the pinch roller and pins drop (under spring tension) thus keeping the tape off the heads.

I suspect the spring that positions the pins in the dropped position (tape off heads) has failed. Another more likely cause is the pinch roller assembly has gummed up on it's mounting (inside) which is not letting the pinch roller drop all the way when stop or fast forward/rewind is depressed.

The pinch roller mounting arm inside the unit is behind the flywheel which necessitates flywheel removal in order to get a good look at the mechanism. I believe the suspect pin spring can be seen on the right side of the flywheel (from behind the unit) without removal (close to the inner front metal panel). There is another spring attached to the solenoid rod that pulls the rod out of the solenoid when deactivated. If this spring fails, the pinch roller would just flop around in the down position i.e., very easy to lift.

If the pinch roller is gummed up, a simple test is to press stop and ensure the pinch roller is dropping all the way by applying a little downward pressure to the pinch roller. If it does drop when pushed, you will most likely see the pins drop also.

The right way to repair the gummed up pinch roller assembly is to remove it from its shaft mount (inside). This entails flywheel removal, solenoid un-mounting and a small half-moon arm retainer removal. The old grease needs to be removed from both the shaft and the mount assembly and then re greased. It's a very common ailment if a deck is not used often but usually results in the pinch roller not engaging the capstan on its upward travel. I guess it could happen on the downward travel as well although I would think the solenoid spring would over power any sticky grease.
Good luck, be safe, leave the repairs to a service tech as there are capacitors in the unit that stay charged long after unplugging. If you do remove the rear top panel to take a look, unplug.

re: A-2340

Hello and thanks I will take a good look at it from inside......other than that it works great.

re: A-2340

Hello and I have another question there are two small plastic tubes on both reel motors are they for oil or what?
Sorry for the questions but this is my first Teac ...I have Sony and Akai.

re: A-2340

Yes, the tubes are for oiling the front and rear bearings. Some units have sealed bearings, i.e. no oil tubes. 2-3 drops is enough.

If you are hearing a squeal, it might be your counter.

Do you have a service manual and owners manual for your deck? You can download a copy here if not.

re: A-2340

Hi, I'm sorry but I don't see the manual on this site. Please direct. Thanks

This website is not affiliated with or sponsored by TEAC. To purchase A-2340 spares or accessories, please contact the company via their website or visit an authorised retailer.