Semi-Automatic Direct Drive Automatic Turntable - mkI Servo control (1977-78) - mkII Quartz locked (1979-81)
The SL-1700 offers the famous Technics direct drive system with the added convenience of semi-automatic operation.
Once the tonearm is manually positioned over the lead in grooves, the automatic mechanism will lower the tonearm onto the record when the lever is flicked, and automatically return it to the arm rest at the completion of play. The unit is then automatically shut off.
This handy feature frees the user from rushing to the turntable at the end of record play and also saves wear on your stylus.
At any time during play, flicking the stop lever will cause the tonearm to automatically lift up and return to the arm rest.
Type: semi-automatic turntable
Drive method: direct drive
Motor: servo DC motor (mk1), brushless DC motor (mk2)
Platter: 330mm (mk1), 332mm 2kg (mk2)
Speeds: 33 and 45rpm
Wow and flutter: 0.025% WRMS
Rumble: -73dB (mk1), -78dB (mk2)
Tonearm: universal s-shaped tubular arm
Effective length: 230mm
Offset angle: 21.5 degrees (mk1), 22 degrees (mk2)
Weight: 8.8kg (mk1), 10kg (mk2)
mkII technical bulletin (en) - Japi Roelofs
1978 advert (en) - j_loop
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Technics SL-1700 / SL1700 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 Technics.