Direct Drive Turntable
Features of the HT-350 include a uni-torque motor, convenient automatic mechanism, speed adjustment, oil-damped arm lifter and easily removable dust cover.
Type: 2-speeed direct drive system
Platter: 308mm aluminium alloy die-cast
Motor: dc servo
Speeds: 33 and 45rpm
Signal to noise ratio: 60dB
Wow and flutter: 0.03% wrms
Tonearm: static balance type
Effective length: 220mm
Dimensions: 454 x 366 x 137mm
service manual (en, de, fr) - zazza
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Hitachi Direct Drive Turntables
Hitachi HT-350 / HT350 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Hitachi.
Submitted by wega
A friend asked me to look after this TT. It only started to turn on 33 after being pushstarted, but 45 worked fine. After checking the Service Manual (found on Vinyl Engine), I decideded to replace the C 01 Electrolytic Capacitor. That did the trick and the deck worked fine after re- adjusting both speeds with the internal pots.
This is a nice deck from the late '70s that outraces each new Denon 250,- $ or similar plastic deck. Stable and reliable DD Motor even if the electronics need some maintenance after35 years. Good midclass tonearm with SME mount, so it is easy to change and upgrade headshells and cartridges. Nice feature is the holder in the left-back for a spare headshell. I would recommend this deck as a possible bargain if you find a runner- otherwise you should be prepared to replace dryed-out capacitors.
Have fun, Stefan