Sansui D-X701 Service Manual

SANSUI
X701
CAUTION
SERVICE MANUAL
NOTE
For servicing D-X701, please refer to service manual
for the D-705 with this manual, since most of the parts
and circuits employed in D-X701 are in common with
the D-705.
critical for safety. Use only replacement parts that have critical characteristics
recommended by the manufacturer.
2. Make leakage-current or resistance measurements to determine that exposed parts
are acceptably insulated from the supply circuit before returning the appliance to
the customer.
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°SPECIFICATIONS
Track format............0:6 4-track/2-channel system
Tape speed............ceeee 4.8 cm/sec.
Heads (3-head configuration)
Play head s.scssisseacssese HIGH-Bs hard permalloy
Recording head.......... HIGH-Bs hard permalloy
Erase head.........ccseeeeee Double-gap HIGH-Bs ferrite
MOOR os ccs iovccntiseeaationesess Capstan: Electronically
Controlled DC Motor
: Reels: DC Motor
Normal tape (LH) ....... 20 to 18,000 Hz
(30 to 17,000 Hz +3 dB)
Came neneseccererseresesssosseseses
Chrome tape .............. 20 to 20,000 Hz
(30 to 18,000 Hz +3 dB)
Metal tape..............ee 20 to 21,000 Hz
(30 to 20,000 Hz +3 dB)
Signal-to-noise ratio (recording/playback with metal tape)
DOLBY NR OFF ......... Better than 60 dB
DOLBY-B NR ON....... Better than 68 dB
DOLBY-C NR ON....... Better than 74 dB
Erasure rate (metal tape)
Sououbeaticstassule aurea Gans More than 70 dB at 1 kHi
Recording bias frequency
icine Au atao cence nnavasewasiues 105 kHz
Input sensitivity/Impedance
LINE: IN (REG) cc cexcua tees 70 mV/47 kohms
Power requiremets.......... 120/220/240V
50/60 Hz
For U.S.A. and Canada
Aorietlesipiadeuneuctennins 120V (60 Hz)
Power consumption ........ 30 watts
Dimensions ..................68. 448 mm (17-11/16") W
111 mm (4-3/8") H
310 mm (12-1/4") D
Welghtica cients 6.0 kg (13.2 Ibs) net
7.3 kg (16.1 Ibs) packed
* Design and specifications subject to changes without notice fo jsn-
provements.
* Dolby noise reduction system manufactured under license'from |p| &y
Laboratories Licensing Corporation. .
''Dolby"' and the double D symbol are trade marks of Dolby Laboraprs es
Licensing Corporation. 74