Technics SL-J1

DC Servo Belt-Drive Fully Automatic Turntable System with Linear tracking tonearm

This was item was given to me by a work colleague who recently retired and moved.

He had the item from new; externally it is in very good condition.

Comes complete with instruction manual.

I have replaced the drive belt and tested the unit, all appears to be OK.

I don’t know much about the features of this unit, what follows is a brief overview of the turntable.

The turntable is very compact and the tonearm and stylus are in the lid of the unit.

It automatically finds the beginning of the record and you can skip tracks by pressing the “forward skip button” and you can skip backwards by pressing the “backward skip button”. The number of button pushes, equals the number of tracks skipped.

The turntable may have more functionality than above, but that is all that I have played with.

The Turntable came as part of a complete stack, comprising radio tuner, amplifier, cassette deck and speakers. I will be listing these items in the next couple of days.

If you have any question please email me and I will try and answer them.

Specifications

Power supply:  -240 V, 50 Hz

Power consumption: 8.5 W

Dimensions: (W X H X D) 31.5 X 8.8 X 31.5 cm (Maximum height when dustcover is opened.)39 cm

Turntable section

Type:  Belt drive Fully automatic turntable

Features: Auto start/Auto lead-in Auto return, Auto stop Repeat play Direct music select play Forward and backward skip play

Forward and backward search play Record presence detection

Drive method: Belt drive

Motor: DC motor

Turntable platter: Aluminum die-cast Diameter 30 cm (12")

Turntable speeds: 33-1/3 rpm and 45 rpm Auto speed select (Manual selection possible)

Wow and flutter 0.045% WRMS (JIS C5521) ±0.06% peak (IEC 98A Weighted)

Rumble: -48 dB (IEC 98A Unweighted) -70 dB (IEC 98A Weighted)

Tonearm section

Type: Linear tracking tonearm 4-pivot gimbal suspension

Effective length: 10.5 cm

Tracking error angle: Within ±0.1°

Effective mass: 9 g (including cartridge)

Resonance frequency: 12 Hz

Tonearm drive motor: DC motor

Phono cable capacitance: 150 pF

Cartridge section

Type: Moving magnet stereo cartridge

Magnetic circuit: All laminated core

Frequency response: 10 Hz ~ 35 kHz

Output voltage: 2.5 mV at 1 kHz 5 cm/s. zero to peak lateral velocity (7 mV at 1 kHz, 10 cm/s. zero to

peak 45° velocity [DIN 45 500])

Channel separation: 22 dB at 1 kHz

Channel balance: Within 2 dB at 1 kHz

Recommended load impedance: 47 kO~100 kQ

Compliance (dynamic): 12X10~⁶cm/dyne at 100 Hz

Stylus pressure range: 1.25+0.25 g (12.5±2.5 mN)

Weight: 6 g (cartridge only)

Replacement stylus: EPS-30CS