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Akai CS-34D

Cassette Stereo Tape Deck (1976-78)

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Akai CS-34D


Type: 2-head, single compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.75 cm/s

Heads: 1 x record/playback, 1 x erase

Motor: mechnical governer type DC

Tape Type: type I, CrO2

Frequency Response: 40Hz to 15kHz  (Cr02 tape)

Signal to Noise Ratio: 52dB

Wow and Flutter: 0.13%

Total Harmonic Distortion: 3%

Input: 80mV (line), 0.35mV (mic)

Output: 0.775V (line)

Semiconductors: 32 x transistors, 18 x diodes 18, 2 x FET

Dimensions: 378 x 110 x 225mm

Weight: 4.8kg


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re: CS-34D

I' m so sorry that once more i have no manuals to share.
At least i can add some pratical informations,having opened an Akai CS-34 right today.

The first thing one can notice is :there are lot of belts,6 if i'm not wrong.The "deepest " ones are easily reachable once some blocks are removed from the main metal plane .This is done removing few screws and a fastener washer with internal teeths.
The good thing is that the blocks can be removed and re-mounted easily.
If the deepest belt is too loose ,the effect is that the "end of tape detector" is triggered,at first it slows the speed,and then it unlocks the "Play" mechanisms.This can be bypassed blocking the moving leverage with adhesive tape,it could be useful to test just the main trasmission from motor to capstan .

Lamps are not glowing?Before saying(as i did) "of course,they are burned as one can expect in a 40 years old recorder",check the lamp fuse in series to the green AC wire.
If some lamp is really gone,it could be replaced by a LED feeded by a rectifier.
Almost everyone who plays with such old gear knows that replacing a lamp with a LED powered by 50 or 60 Hz looks annoyingly flickering.If there is enough space a rectifier bridge + 470 uF+ appropriate resistor are suggested to have it looking stable.

If you want to test the recording section without a tape inside,it can be done as usual by pressing the "recordable tape" switch using a single finger at the upper left corner of the cassette carrier.

Not very much,just trying to contribute.

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