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SERVICE MANUAL
oe.
No. 167
for further improvement.
Type
2-speed direct drive system
When a HITACHI cartridge is attached.
Platter
Aluminurn alloy die-cast,
Cartridge
Dual magnet type (MT-30)
.
310 mm outer diameter
Frequency response
10 — 25,000 Hz
Motor
Brushless DC servo direct
Output voltage
3 mV at 1 kHz 50 mm/sec.
drive motor
Channel difference
1dB at 71 kHz
Speed
2 speeds, 33-1 {Band 45 rpm
Channel separation
20 dB at 1 kHz
Speed change system
Electronic change-over system
Tracking force
1.5 - 2.59 (recommended 2 q)
S/N ratio
75 GB (DIN-B)
Stylus tip
Diamond stylus (DS-ST 30)
Wow & Flutter.
0.03% WRMS
Power source
120 V 60 Hz for U.S.A. &
Speed deviation
0.003%
(only
Canada standard
Speed drift (for time)
0.003%/hour
|
far a6)
220 V 50 Hz for Europe
(for temperature)
0.003% (5 — 35 C)
standard.
Pitch contro! range
240 V 50 Hz for UK. &
33-1/3 rpm
|
+3%
7
Australia standard
45 rpm
ie sony ALY 5954)
120/220 V 50/60 Hz for Asia
Effective length
220 mm
& Latin America countries
Overhang
15 mm
Power consumption
4 watts (HT-354)
Tracking error
2
3 watts (HT-356)
Lead wire capacitance
140 pF
Dimensions
435 x 375 x 7128 mm
Adjustable force range
(17-1/8" x 14-3/4" x 5-1/32"')
{scale)
O — 3q/1 turn of the scale ring
Weight
5.5 kg (12.1 tbs.)
;
(directly readable in 0.1 g
-
Other devices
Auto return, auto cut, anti-
steps)? #
.
skating, tracking force direct-
Acceptable cartridge
reading balance weight, strobo-
weight
4—
10g
scope and neon iamp, viscous
damped cueing.
FEATURES
1. Unitorque motor (200-pole magnetic rotor)
6. Viscous damped arm lifter never damages stylus tip
2. Easy-to-operate front panel controls
7. Easily removable dust cover
3. Employment of the low center of gravity tonearm
8. Quartz control (quartz lock PLL servo) (only HT-356)
4. Structure resistant to howling
9. Easy-to-see single-pattern strobo (only HT-356)
5. Handy automatic mechanism
DIRECT DRIVE TURNTABLE
April 1979
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