Sansui D 99 CW Service Manual
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Extracted text from Sansui D 99 CW Service Manual (Ocr-read)
Page 1
SERVICE MANUAL
STEREO DOUBLE CASSETTE DECK
(Silver & Black Model)
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.
OSPECIFICATIONS
Track format ...................
D-99CW
4-track/2-channel system
Tape speed ...................... 4.8 cm/sec, 9.5 cm/sec.
Heads
Rec/play head ............. HIGH-BS hard permalloy
Play head ....... .. HIGH-B5 hard permalloy
Erase head.. .. Double-grap HIGH-BS ferrite
Motor ............................. Electronically controlled
DC motor X 2
Reels: DC Motorx 2
Wow/flutter .................... 0.06% max (WRMS)
Fast forwarding (rewinding) time
.................................. Approx. 85 sec. (for C-60 tape)
Frequency response (-20 VU recording/playback)
Normal tape (LH)
Chrome Tape .............
Metal Tape .................
Erasure rate (metal tape)....
Recording bias frequency
20 to 15,000 Hz
(30 to 14,000 Hzt3 dB)
20 to 17,000 Hz
(30 to 16,000 Hza:3 dB)
20 to 17,000 Hz
(30 to 16,000 Hza:3 dB)
70 (13 min (1 kHZ)
85 kHz
Input sensitivity/impedance
LINE lN (REC) .............
150 mV/47 kohms
Signal to noise ratio (Record/Playback)
Metal Tape (without Dolby Noise Reduction)
better than 54 dB
(With Dolby Noise Reduction Effect)
DOLBY B NR
DOLBY C NR....
Power requirements
Power voltage .............
For U.S,A. and Canada
Power consumption
Dimensions .....................
Weight ............................
better than 10 dB
(above 5 kHz)
better than 20 dB
(above 1 kHz)
120/220/240V (50/60 Hz)
120V (60 H1)
23W
430 mm (16-15/16) W
118 mm (4-11/16) H
223 mm (8-13/16) D
4.6 kg (10.1 lbs.) net
55 kg (12.1 lbs.) packed
Design and specifications subject to changes without notice for im-
provements.
Noise reduction system manufactured under license from Dolby Laborato
ties Licensing Corporation.
Dolby and the double D symbol are trade marks of Dolby laboratories
Licensing Corporation.
Page 2
D-99CW
CAUTION
1. The symbols, UL, CSA, SA, BS, UK, EU, AS and XX on the parts
list and the schematic diagram mean followings respectively.
UL ....................... Manufactured for USA 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 ....................... Standard Version.
NON MARK ........ Common Parts.
2. 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.
3. 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.
4. Abbreviations in this service manual are as follows.
C.R.
S.R.
Ce.R.
M.R.
F.R.
N.|.R.
A.R.
G.C.
C.T.
E.C.
E.L.
EB.
- ~Abbreviations List
: Carbon Resistor
:Solid Resistor
: Cement Resistor
: Metal Film Resistor
: Fusing Resistor
: Non-inflammable Resistor
: Array Resistor
: Ceramic Capacitor
: Ceramic Capacitor,
Temoerature Compensation
: Electrolytic Capacitor
: Low Leak Electrolytic
Capacitor
: Bi-Polar Electrolytic
Capacitor
E.B.L.
Ta.C.
F.C.
M.P,
F.C.
G.C.
A.C.
V.R.
S.V.R.
SW.
Chip R. i
' Chip C. :
: Low Leak Bi-Polar
Electrolytic Capacitor
: Tantalum Capacitor
: Film Capacitor
: Metalized Paper Capacitor
: Polystyrene Capacitor
: Gimmic Capacitor
: Array Capacitor
: Variable Resistor
: Semi Variable Resistor
: Switch
Chip Resistor
Chip Capacitor