Hitachi HT 660 Service Manual

Page 1

@HITACHI

SERVICE MANUAL

English
Deutsch
Francais

No. 166

English l SPECIFICATIONS

Type
Platter
Motor

Speed

Speed change system

S/N

Wow 8i Flutter

Speed deviation

Speed drift (for time)
[Tor temperature)

Effective length

Overhang

Tracking error

Adjustable force range

(scale)

Acceptable cartridge
weight
Accessory HITACHI
cartridge

Cartridge

2vspeed direct drive auto-
matic system

Aluminum alloy dlE~CBSI, 330
mm outer diameter
Brushless, Slotless, Coreless
DC servo "unitorque" motor
2-speeds; 33-1/3 and 45 rpm
Electromc changeover system
75 dB lDlN-B)

0.025% WRMS

000331:

0.003%lhour

0.003% is - 35°C)

220 mm

15 mm

29

O - 3 g/l turn of the balance
weight (directly readable in
01 9 steps)

4 - 10 9

Dual magnet type
(VFS-261E)

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 rum/sect
1 dB at 1 kHz

23 dB at 1 kHz

1.25 - 2.0 9 (recommended
1.5 g)

014 x 0.7 mil elliotical dia-
mond stylus lDS-ST26E)
120 V 60 Hz for USA at
Canada standard

220 V 50 Hz for Europe
standard

240 V 50 Hz for UK &
Australia standard

120/220 V 50/60 Hz for Asia
& Latin America countries

6 watts

454 x 391x 140 mm
(17-7/8 x 15-3/8" x 5-1/2)
9 kg (19 lbs.)

Auto in, auto repeat, auto re-
turn, auto cut, antisskating,
tracking force direct-reading
balance weight, siroboscope
and neon lamp, Viscous damped
cueing, soft touch switches,
electronic brake.

FEATURES

1. Unitorque motor

2. Quartz control (quartz lock PLL servo)

5. Handy fully automatic mechanism (with manual priority mechanism)

5. Electronic return detection mechanism

7. Two-motor system with improved performance
8. Start/stop mechanism

3. Easy-temperate from panel controls
4. Highly sensitive precision tonearm

DIRECT DRIVE AUTOMATIC TURNTABLE
April 1979