Sansui D 390 R Service Manual

Page 1

D-390R

SERVICE MANUAL OSPECIFICATIONS

Track format ................... 4-track/2-channel system
Tape speed ...................... 4.8 cm/sec.

Heads (2-head configuration)

STEREO CASSETTE DECK E:i§?..2?..:zz"""':::::353132.03.militia

Motor ................... Capstan: Electronically

Controlled DC Motor
I Reels: DC Motor
Wow/flutter .................... 0.05% max (WRMS)

- Fast forwarding (rewinding) time
(Sliver & Blaiik Model) .................................. Approx. 85 sec. (for (2-60 tape)

Frequency response (-20 VU recording/playback)
Normal tape (LH) ....... 20 to 15,000 Hz
(30 to 14,000 Hz i=3 dB)

Chrome tape .............. 20 to 17,000 Hz
(30 to 16,000 HZ :i:3 dB)
Metal tape .................. 20 to 18,000 Hz

(30 to 17,000 Hz :3 dB)
Signal-to-noise ratio (recording/playback with metal tape)
DOLBY NR OFF ......... Better than 58 dB
DOLBY-B NR ON ....... Better than 68 dB
(above 5 kHz)
DOLBY-C NR ON ....... Better than 78 dB
(above 1 kHz)

Erasure rate (metal tape)

.................................. 70 dB min (1 kHz)
Recording bias frequency
CAUTION ........... .................. 85 kHz
. _ . _ Input sensrtIVIty/lmpedance
1. Parts Identified by theAsymbol on the schematic LINE IN (REC) ............. 70 mV/100 kohms
' ' ' ' ..... 0.5 mV/200~5,000 ohms
diagram and the parts list are critical for safety. Power requiremets .......... 120/220/24ov
Use only replacement parts that have critical 50/60 Hz
characteristics recommended by the manufacturer. For U.S.A. and Canada
2. Make leakage-current or resistance measurements ------------- ZOV 50 HZ
. . Power consumption ........ 16W
t0 determlne that exposed Pails are acceptably 1' Dimensions ..................... 430 mm (16-15/16) w
sulated from the supply crrcurt before returning the in mm (4-3/8) H
' 226 mm (5-15/16) D
appliance to the customer. Weight ............................ 3.9 kg (8.6 lbs) net
4.9 kg (10.8 lbs) packed
Design and specifications subject to changes without notice for irn-
provernents.
' Noise reduction system manufactured under license from Dolby Laborato-
ries licensing Corporation.
Dolby" and the double D symbol are trade marks of Dolby laboratories
Licensing Corporation.
0
Sauna.

SANSUI ELECTRIC CO., LTD.

Page 2

D-390R

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.
C.C.
C.T.

E.C.
E.L.

E.B.

- -Abbreviations List

:Carbon Resistor

: Solid Resistor

: Cement Resistor

: Metal Film Resistor

: Fusing Resistor

: Non-lnflammable 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.
P.C.
G.C.
A.C.
V.R.
S.V.R.
SW.
Chip R. :
Chip C. :

: Low Leak Bi-Polar

: Tantalum Capacitor

: Film Capacitor

: Metalized Paper Capacitor
: Polystyrene Capacitor

2 Gimmic Capacitor

: Array Capacitor

2 Variable Resistor

: Semi Variable Resistor

: Switch

Electrolytic Capacitor

Chip Resistor
Chip Capacitor