Sansui D 190 Service Manual

Page 1

SERVICE MANUAL OSPECIFICATIONS

Track format. ..... 4-track/2ihannel system
Tape speed... ..... 4.8 cur/sec.
Heads (2-head con Iguration)

METAL TAPE $223.2? '-3:2:.:;$'§.2fifazlzz....
CAPABLE CASSETTE DECK ...........

.. Capstan: Electronically
Controlled DC Motor
Reels: DC Motor

Wow/flutter .. 0.05% max (WRMS)

Fast forwarding re 3) time
I ..... Approx. 85 sec. (for (2-60 tape)
Frequency response (-20 VU recording/playback)
' Normal tape (LH) ....... 20 to 15,000 Hz
(Silver & Black Model) Do to 14,000 Hz *3 dB)
Chrome tape .............. 20 to 16,000 Hz
(30 to 15,000 HZ :3 dB)
Metal tape .................. 20 to 17,000 Hz

(30 to 16,000 Hz :3 dB)
Signal to noise ratio (Record/Playback)
Metal Tape (without Dolby Noise ReductionJ
............................. better than 57 dB
(With Dolby Noise Reduction Effectl
............................. better than 10 dB
(above 5 kHz)
Erasure factor (Metal Tape)
' .................................. more than 70 dB at (1 kHz)
Recording bias frequency
............... 85 kHz
(Impedance
LINE IN (REC). .. 70 mV/47 kohms
MlC ............ 0.5 mV/200~5,000 ohms
Power requiremets. .. 120/220/24OV
50/60 Hz

For U.S.A. and Canada

CAUTION Power oansump- on
1. Parts identified by theAsymbol on the schematic D'"""°"5 -------- -- fl? 32 365/1855??? w
diagram and the parts list are critical for safety. 226 mm 3.15/1 0
Use only replacement parts that have critical charac- Weight ............................ 3.6 kg (7.9 lbs) net
teristics recommended by the manufacturer. 4.6 kg (10.1 lbs) packed
2. Make leakage-current or resrstance measurements . W m, mam, whim m am... with. mm. ,0, h...
l° lemme mat 9°39? Pens are acceptab'y '" -mimic...m...m..u..m..d....d...m,.mwtyat...
sulated from the supply crrcurt before returning the "1.. Licensing comm... .
appliance to the Customer. lirlznsgzxelsmhle D symbol are trade marl-s ol Dolby laboratom
.
Sauna.

SANSUI ELECTRIC CO., LTD.

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0-190

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 U.S.A market.
(Underwriters Laboratories approved model.)

CSA. Manufactured for Canadian market.

8A.... . Manufactured for South African market.

Manufactured for United Kingdom market.
Manufactured for European market.

. 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 pans lists
in this service manual, refer to the Common Parts List for capacitors
8t resistors, which was issued on February 1983.

4. Abbreviations in this service manual are as follows.

0Abbreviations List

C.R. : Carbon Resistor E.B.L. : Low Leak Bi-Poiar

S.R. : Solid Resistor Electrolytic Capacitor

Ce.R. : Cement Resistor . Tao. : Tantalum Capacitor

M.R. : Metal Film Resistor F.C. : Film Capacitor

F.R. : Fusing Resistor M.P. : Metalized Paper Capacitor

N.I.R. : Non-lnflammable Resistor P.C. : Polystyrene Capacitor

A.R. : Array Resistor G.C. : Gimmic Capacitor

C.C. : Ceramic Capacitor A.C. : Array Capacitor

C.T. : Ceramic Capacitor, V.R. : Variable Resistor
Temoerature Compensation S.V.R. : Semi Variable Resistor

E.C. : Electrolytic Capacitor SW. : Switch

E.L. : Low Leak Electrolytic Chip R. : Chip Resistor
Capacitor Chip C. : Chip Capacltor

EB. : Bi-Polar Electrolytic
Capacitor

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~190

6-2. Rear View of Mechanism Chassis

Pans No. Stock No. Ducvlpdon Parts Nu. Smelt No. Descrlmlon
21 07997400 Erase Head 30 46737500 Heel Motor
22 47406100 Sprung, azimuth 31 47293100 Gear, reel motor
23 46268900 Pan Head Deltite Screw, M2.6x6 32 47293800 Arm (8)
24 47282900 Flywheel Assy 33 47283800 Assxst Gear
25 47281200 Capslan Gear 34 47292600 Plunger Solenoid
26 47405100 Bell 35 Sub Chassis
27 47283200 Pully 36 47404600 Washer, d : 2.5
28 46737400 Capstan Motor 37 47530000 Spring A, Flywheel
29 47281600 Lock Arm

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