Sansui D W11 Service Manual

Page 1

SERVICE MANUAL

SANSUI

D-Wl 1

COMPU-SYNCHRO
DOUBLE REVERSE CASSETTE DECK

CAUTION

.1. Parts identified by the A symbol on
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.

the schematic diagram and the parts list are

'SPECIFICATIONS
Track format ................... 4-track/2-channel system Erasure factor (Metal Tape) .
Tape speed ...................... 4.8 cm/sec, .................................. more than 70 dB at 1 kHz
Heads Recording bias frequency
Rec/play head ............. HIGH-BS hard permalloyXZ .................................. 85 kHz
Erase head .................. Double-gap HlGH-Bs Input sensitivity/impedance
ferrite><2 LINE IN (REC) ............. 150 mV/47 kohms (AUTO)
Motor ............................. Electronically controlled DC 70 mV/47 kohms (MANUAL)
motor><2 MIC ........................... 0.5 mV/1O kohms
Reels: DC Motor><2 Power requirements ........ 120/220/240 V
Wow/flutter .................... 0.05% max (WRMS) 50/60 Hz

Fast forwarding (rewinding) time
.................................. Approx. 85 sec. (for C-6O tape)
Frequency response (#20 VU recording/playback)

Normal tape (LH) ....... 20 to 15,000 Hz

(30 to 14,000 Hz i3 dB)
Chrome tape .............. 20 to 17,000 Hz

(30 to 16,000 Hz :t:3 dB)
Metal tape .................. 20 to 18,000 HZ

(30 to 17,000 Hz i3 dB)
Signal to noise ratio (Record/Playback)
Metal Tape (without Dolby Noise Reduction)
............................. better than 57 dB
(With Dolby Noise Reduction Effect)
DOLBY B NR better than 66 dB
(above 5 kHz)
DOLBY "C NR better than 73 dB
(above 1 kHz)

For U.S.A. and Canada
............................. 120V (60 HZ)

Power consumption ........ 35W

Dimensions ..................... 430 mm (16-15/16) W
111 mm (4-3/8) H
304 mm (12) D

Weight ............................ 6.2 kg (13.7 lbs) net
7.6 kg (16.8 lbs) packed

Design and specifications subject to changes without notice for im-

provements.
Dolby noise reduction system manufactured under license from Dolby

Laboratories Licensing Corporation.
Dolby and the double D symbol are trade marks of Dolby laboratories

Licensing Corporation.

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D-W11

1. The symbols, UL, CSA, SA, BS, UK, EU, AS, SEV, SS and - -Abbreviations List
XX < EXPORT> on the parts list and the schematic dia~ C.R. : Carbon Resistor
gram mean followings respectively. S.R. :Solid Resistor
Ce.R. : Cement Resistor
. UL ...................... Manufactured for U.S.A market. M.R. : Metal Film Resistor
(Underwriters Laboratories approved F.R. . Fusing Resismr
model.) N.I.R. : Non-inflammable Resistor
CSA ................... Manufactured for Canadian market. A_Ft, : Array Resistor
SA ...................... Manufactured for South African market. C.C. : Ceramic Capacitor
BS, UK ............... Manufactured for United Kingdom C.T. : Ceramic Capacitor, Temperature
market. Compensation
EU ...................... Manufactured for European market. E-C- E'°°"°'Y° Capacnfi" .
AS ...................... Manufactured for Australian market. E'L' ' Low Leak EI°°II°IW° Capacttor
. E.B. : Bt-Polar Electrolytic Capacttor
SEV .................... Manufactured for Swrss market. . . .
. . E.B.L. . Low Leak BI-Polar Electrolytic
SS ...................... Manufactured for Saudi Arabia market. Capacitor
XX .. Standard Version. - Ta_c_ :Tantalum Capacitor
NON MARK ........ Common Parts. . F.C. :Fflm Capacitor
. . . M.P. :Mtl' dP C 't
2. Some printed CichIt boards are not supplied assembled. P.C. . ngigfeneacpgacfigfm or
To separate these in this service manual, the stock num- G.C. ; Gimmic Capacitor
bars are not indicated for these boards. However, stock A.C. :Array Capacitor
numbers for individual parts are indicated. v.R. :Variable Resistor
. . . . S.V.R. : Semi Variable Resistor
3. Since some capacrtors and resrstors are omitted from parts SW. . Switch
lists in this service manual. refer to the Common Parts List Chip n_ ; Chip Resistor
for capacitors and resistors, which was issued on June Chip C. : Chip Capacitor
1987.

4. Abbreviations in this service manual are as follows.

Note
* For block diagrams, discription of ICs, operation of mechanism and main parts replacement,

please refer to the D-W1O Service Manual previously issued.

1. PACKING LIST 2.ACCESSORY LIST

Parts No. Stock No. Description Stock No. Description
1 47859100 Vinyl Bag 07193400 PJP Cord
2 47673600 Styrofoam Packing or 38103300 PJP Cord
3 27482800 Carton Case 49033000 Operating Instruction (E-F-S)

49033100 Operating Instruction ('G-l-Sw)

*Note
E-F-s: English-French and Spanish Version
G-l-Sw: German-Italian and Swedish Version