Hitachi HT-60S Bedienungsanleitung

@) HITACHI
© SERVICE MANUAL
No. 236EGF
HT-60S
CONTENTS OY
SPECIFICATIONS 1
SERVICE POINTS .........2ccsccsessescscescessssaeessenes
Sic Sunibaamcrld ciety ails wang Save Uap iawnitese cies 6
EXPLODED VIEW ........:ccccccesescessesseeeesvaceneens 10
REPLACEMENT PARTS LIST ..........0.:000c0000- 11.145
BLOCK DIAGRAM ...........cscssescsecsessesesecseeeene "2
CIRCUIT DIAGRAM ........cccceccccccesescscseestaeens 13
PRINTED WIRING BOARD .............c000cc0c0000 14
TROUBLESHOOTING ........ccsscssseesescseseeseseens 17
Refer to the HT —464 Service Manual (No. 194) for the operation of this unit's auto mechanism since it is exactly the same.
Einzelheiten Uber die Arbeitsweise der Automatik dieses Gerats kann man dem Service-Handbuch fiir das Modell HT —464 (Nr. 194)
entenehmen, da beide identisch sind.
En ce qui concerne le fonctionnement du mécanisme automatique de cet appareil, se reporter au Manuel d'entretien (N° 194) du
HT —464, car ils sont exactement identiques.
SPECIFICATIONS
Type 2-speed direct drive automatic system
Platter Aluminum alloy die-cast, 310 mm outer
diameter
Motor Brushless, slotless, coreless DC servo
"Unitorque'"' motor
Speed 2-speeds; 33-1/3 and 45 rpm
Speed change system Electronic change-over system
S/N 78 dB (DIN-B)
Wow and Flutter 0.025% WRMS
Speed deviation 0.003%
0.003% hour
0.003% (5 — 35°C)
Speed drift (for time)
(for temperature)
Effective length 220 mm
Overhang 15 mm
Tracking error 2°
Lead wire capacitance 140 pF
Adfustable force range
(scale) 0 — 3/1 turn of the tabalce weight
{directly readable in 0.1 g steps)
Acceptable cartridge
weight 4— 10g
When a HITACHI cartridge is attached.
Cartridge Duai magnet type (MT-35)
Frequency response 10 — 25,000 Hz
2.5 mV at 1 kHz 500 mm/sec.
1 dB at 1 kHz
23 dB at 1 kHz
1.5 — 2.5 g (recommended 2g)
Diamond stylus (DS-ST35)
120 V 60 Hz for U.S.A. and Canada
standard
220 V 50 Hz for Europe standard
240 V 50 Hz for U.K. and Australia
standard
110 — 120/220 ~ 240 V 50/60 Hz for
Asian and Latin American countries
5 watts (for U.S.A. and Canada)
6 watts ( except U.S.A. and Canada)
435 x 365 x 110 mm
(17-1/8" x 14-3/8" x 4-5/16")
6.0 kg (13.2 Ibs.)
Auto-in, auto-repeat, auto-return, auto-
Cut, anti-skating, tracking force direct-
reading balance weight, viscous damped
cueing, repeat indicator, speed in-
dicator, quartz locked indicator
Output voltage
Channel difference
Channel separation
Tracking force
Stylus tip
Power source
Power consumption
Dimensions
Weight
Other devices
Specifications and Parts are subiect to change for improvement.
DIRECT DRIVE AUTOMATIC TURNTABLE
October 1980
TOYOKAWA WORKS