Hitachi HT-660 Service Manual

(O)
SPECIFICATIONS
Type
Platter
Motor
Speed
Speed change system
S/N .
Wow & Fiutter
Speed deviation
Speed drift (for time)
(for temperature)
Effective length
Overhang
Tracking error
Adjustable force range
(scale)
Acceptable cartridge
weight
Accessory HITACHI
cartridge
Cartridge
FEATURES
1. Unitorque motor
2-speed direct drive auto-
matic system
Aluminum alloy die-cast, 330
mm outer diameter
Brushless, Slotless, Coreless
DC servo "'unitorque'' motor
2-speeds; 33-1/3 and 45 rpm
Electronic change-over system
75 dB (DIN-B}
0.025% WRMS
0.003%
0.003%/hour
0.003% (5 — 35°C)
220 mm
15mm
2
0 — 3g/1 turn of the balance
weight (directly readable in
0.1 g steps)
4-—10g
Dual magnet type
(VFS-261E)
English
Deutsch
Francais
No. 166
Design and specifications subject to change without notice
for further improvement.
|
Frequency response
Output voltage
Channel! difference
Channel separation
Tracking force
Stylus tip
Power source
Power consumption
Dimensions
Weight
Other devices
20 — 20,000 Hz
3.5 mV at 1 kHz 50 mm/sec.
1 dB at 1 kHz
23 dB at 1 kHz
1.25 — 2.0 g (recommended
1.5 g)
0.4 x 0.7 mil elliptical dia-
mond stylus (DS-ST26E)
120 V 60 Hz for U.S.A. &
Canada standard
220 V 50 Hz for Europe
standard
240 V 50 Hz for U.K. &
Australia standard
120/220 V 50/60 Hz for Asia
& Latin America countries
6 watts
454 x 391 x 140 mm
(17-7/8" x 15-3/8" x 5-1/2'")
9 kg (19 ibs.)
Auto in, auto repeat, auto re-
turn, auto cut, anti-skating,
tracking force direct-reading
balance weight, stroboscope
and neon lamp, viscous damped
cueing, soft touch switches,
electronic brake.
5. Handy fully automatic mechanism (with manual priority mechanism)
2. Quartz control (quartz lock PLL servo)
3. Easy-to-operate front panel controls
4. Highly sensitive precision tonearm
6. Electronic return detection mechanism
7. Two-motor system with improved performance
8. Start/stop mechanism
April 1979