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Sony TC-755

Three Head Tape Recorder (1973-74)

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Sony TC-755


Special features of the Sony TC-755 include an AC servo controlled capstan drive motor, dual capstan closed-loop tape drive, three motors, three heads, 10.5" reel capacity, logic controlled function buttons and tape equalisation and bias selectors.


Track system: 4-track, 2-channel, stereo/monaural system

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

Motor: 2 x reel, 1 x capstan

Reel size: up to 10.5 inch reel

Tape speeds: 3 34  7 12 ips

Wow and flutter: 0.05% (7 12 ips)

Frequency response: 20Hz to 30kHz (7 12 ips)

Signal to Noise Ratio: 56dB

Total harmonic distortion: 1.2%

Input: 60mV (line), 0.2mV (mic)

Output: 0.43V (line)

Semiconductors: 2 x FET, 56 x transistors, 1 x IC, 41 x diodes

Dimensions: 435 x 451 x 221mm

Weight: 24kg

Accessories: 10.5" reel, connecting cords, head cleaning tip, ac power cord, reel adaptors


instruction/owners manual   English Deutsch Francais - Austernfischer

service manual   English - sbirov

service manual (imp scan)  English - andi91265

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TC-755 Repair Manual

Does anybody have a copy of a repair manual for the TC-755. The pinch rollers on mine are partially seized (will only close with help from my fingers). I have tried to remove the pinch mechanism to clean, however it defies all logic as to how the pinch mechanism comes off. I don't want to apply undue force for fear of breaking something. Any help wopuld be appreciated. Thanks

Sony TC755

I have three of these machines which have all had the same problem. Stripping the mechanism down is the best answer as it enables you to clean off the hardened grease on the spindles. However, this is a difficult job so I have resorted to using WD40 applied with a tube to the pivot points.
Leave it overnight and gently lift the pinch rollers up and down until they operate freely.
This will take some time so be patient and it will eventually work.
Make sure you clean off any excess lubricant with alchol and DON'T over do it.
Best of luck.

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