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TEAC A-2340

4 Channel Simul-Sync Tape Deck (1972)

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TEAC A-2340

Description

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.

Specifications

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

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Reviews

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rating
Reviewed May 01st, 2018 by N1RZ

I acquired a TEAC A-2340 recently from a co-worker who had obtained it from the original owner at a tag sale 20 years ago. It had sat unused for most of that time so a bit of tape path cleaning and motor oiling was needed to get it working. That being said, this is one fantastic reel to reel beast. Vintage HiFi gear was built to last and TEAC built theirs like tanks. The warm, analog sound of a quality recording must be experienced to be appreciated. If you are lucky enough to find one of these in good working order don't hesitate to add it to your collection.

rating
Reviewed Jan 15th, 2017 by TimCutler

Possibly the best reel-to-reel I ever used. Vanderbilt University recording studio 1973-74.

 

Comments

re: A-2340

sticking pinch roller on 2340 .
Remove top black mesh cover on back of unit
take a ssurvey of components on left side
below flywheel you will see a pinch roller arm /pivot above micro switch
Place a rag under to catch any over spray
use wd 40 or rust bust with red extension tube
spray little bit.
let it sit for few minutes , spray again
Repeat this few times .
using a small hair dryer which can reach the seized pivot. heat it for few moments , do not over heat to burn wires
try to lift pinch roller towards capstan shaft by hand .if it moves or not, little more spray & heat.
it will free up ..
have done dozens by this method . take your time with this over built piece of eqmt .
enjoy the sweat sound

re: A-2340

Hey I could use some help. I replace the capstan belt and lubricated motors and switches. My problem is I need to install the missing counter belt. Teac 2340, any idea on what’s involved in installing it. Thanks

TimCutler's picture

re: A-2340

Any idea why my VU meters aren't working during playback?

re: A-2340

Silly question, do you mean all 4 meters in PB or just the 2 rear meters.
If just the 2 rear meters, you have the two channel / four channel switch in the two channel position.
When U R in record & have the meters in source mode, do all 4 work?
Frank

re: A-2340

Sure wish the owner's/operating manuals were available on this page

re: A-2340

I just uploaded today (4/30/2018) a scanned copy of an original A-2340 Owners Manual. The site upload page says it can take a few days or more for them to review the file before making it available for general download. So please check back soon.

The scan was done in 600dpi format for good viewing even when enlarging the PDF file.
The manual is only 12 pages long which leads me to believe it is a very early copy.

Enjoy!

Ken, N1RZ
Bennington VT

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.