Sansui D W10 Service Manual

Page 1

SERV CE MANUAL

COMPU-SYNCHRO
DOUBLE REVERSE CASSETTE DECK

SANSIII IJ-WIII

(Silver & Black Mortal)

CAUTION

1. Parts identified by theAsymbol on the schematic
diagram and the parts list are critical for safety.
Use only replacement parts that have critical charac-
teristics recommended by the manufacturer.

2. Make leakage-current or resistance measurements
to determine that exposed parts are acceptably in-
sulated from the supply circuit before returning the
appliance to the customer.

Sansui.
SANSUI ELECTRIC CO., LTD.

i+ q,

SPECIFICATIONS

Track format 4rtrack/Z-Channel system

Tape speed" 4.8 cm/sec, 9.5 cm/sec.
Heads
Rec/play head HIGH»Bs hard permalloyx 2
Erase head ..... Doublegap HlGHrBs
Ierrrte x 2
Motor ............................ Electronically controlled DC
motor X 2
Reels; DC Motor x 2
Wow/flutter ............ . 0.05% max lWRMSl

Fast forwarding (rewinding) time
................................. Approx. 85 sec. (for C-60 lapel
Frequency response (-20 VU recording/playbackl
Normal tape (LHl ....... 20 to 15,000 Hz
(30 t0 H.000 Hz 13 dB)

Chrome tape .............. 2010 17,000 Hz
(30t016,000 Hz *3 dB)
Metal tape .................. 20 to 3,000 HZ

(30 to l7,()OC HZ 13 dB)
Signal to noise ratio {Record/Playback)
Metal Tape (without Dolby Norse Reductionl
.......... better than 5" dB
oise Reduction Effect)
DOLBY B" NR better than ()6 dB
(above 5 kH1)
DOLBY "C" NR better than 73 dB
(above 1 kHz)
Erasure factor (Metal Tape)
... ,.morethan 70dBatlkHz
Recording bias frequency

..................... 85 kHz
Input sens ty/ pedance
LINE IN (REC) ............. 150 mV/47 kohm: (AUTO)

7O mV/47 konms (MANUAL)
.05 mV/lO kahms
r 120/220/240 \/
50/60 HZ
For USA. and Canada
. IZOV ((30 Hz:
. 35W
.430 mm (MS/'16") W
ill mm (4&8 ") H
304 mm (12') D
Weight .......................... 6.2 kg (13.7 b5) net
7.6 kg (16.8 b5) patked

MIC ................
Power requirements

Power consump
Dimensions

Deergn and spelificah'ons subied to changes without victim to: im-
movements.

Noise reduction system muutmmd under Iicens rmm Dolby Laborato-
vies Licensing (orpnyaxian.
Dolby and the double in symbol arelrade «mum Dollry tabomom
licensing Corporation

w.

Page 2

1. The symbols, UL, CSA, SA, BS, UK, EU, AS and XX (EXPORT) on
the parts list and the schematic diagram mean followings respectively.

CAUTION

UL... .. Manufactured for U.S.A market.
(Underwriters Laboratories approved model.)

CSA.. Manufactured for Canadian market.

SA... . Manufactured for South African market.

BS, UK Manufactured for United Kingdom market.

EU .. Manufactured for European market.

AS... .. Manufactured for Australian market.

XX (EXPORT) L... Standard Version.
NON MARK ........ Common Parts.

. Some printed circuit boards are not supplied as the assembled.
To separate these in this service manual, the stock Nos are not in-
dicated at the ends of the board names. However, the individual parts
on the circuit boards are provided by orders.

. Since some of capacitors and resistors are omitted from parts lists
in this service manual, refer to the Common Parts List for capacitors
& resistors, which was issued on February 1983.

. Abbreviations in this service manual are as follows.

oAbbreviations List

CR. : Carbon Resistor E.B.L. : Low Leak Bi-Poiar
S.R. : Solid Resistor Electrolytic Capacitor
CeR. : Cement Resistor Ta.C. : Tantalum Capacitor
M.R. : Metal Film Resistor F.C. : Film Capacitor
F.R. : Fusing Resistor M.P. : Metafized Paper Capacitor
N.l.R. ; Non-inflammable Resistor P.C. : Polystyrene Capacitor
AR. : Array Resistor G.C, : Gimmic Capacitor
C.C. : Ceramic Capacitor A.C. : Array Capacitor
C.T. : Ceramic Capacitor, V.R. : Variable Resistor
Temperature Compensation S.V.R. : Semi Variable Resistor
E.C. : Electrolytic Capacitor SW. : Switch
EL. : Low Leak Electrolytic Chip R. : Chip Resistor
Capacitor Chip 0. : Chip Capacitor
E.B. : Bi~Polar Electrolytic
Capacitor