Sansui MC 1000 Service Manual

Page 1

SERVICE MANUAL

SANSUI

MC-iOOD
MC-lOOOL

MICRO COMPONENT SYSTEM

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CAUTION

critical for safety.
manufacturer.

parts are acceptably insulated
appliance to the customer.

1. Parts identified by the A symbol on the schematic diagram and the parts list are
Use only replacement parts that have critical characteristics recommended by the

2. Make leakage-current or resistance measurements to determine that expOSed

from the supply circuit before returning the

NOTICE -- -Abbraviations List
1. For packing material and accessory parts, see the service CR 103030" R?Sisl0f E~B-L 1 LOW Laalf 3"P0af
manual (TU & AMP Section) of the MC-1000/1000L. (35': 13° Regs-9' T C fi'eclrf'y°c°apa§"°'
. . . . e. . : ement seislor a. . : antaum a act or
2. Some pnnted circuit board are not supplied assembled. MR :Mem Film Resistor F.C. . Film Came;
To separate these in this Parts List, the stock numbers are F.Ft. : Fusing Resistor Mp, :Metalized paper
not indicated for these boards. However, stock numbers for Nita. ; Non-inflammable _ Capacitor
indivisual parts are indicated. Resistor P.C. :Polystyrene Capacitor
3. Since some capacitors and resistors are omitted from parts A-R- 1"" all 895s _ M-M-C- iMe'alléed MY'a'
lists in this Parts List, refer to the Common Parts List for g? 833:: 3:23;: A C axilcggpacitor
capacnors and resistors, which was issued on June 1987. Temperature V.R. ; Variable Resistor
4. Abbrevtations In this Parts List are as follows. Compensation S.V.Ft. : Semi Variable Resistor
E.C. : Elecrolytic Capacitor SW. : Switch
E.L. : Low Leak Electrolytic Chip R. : Chip Resistor
Capacitor Chip 0. : Chip Capacitor
EB. : Bt-Polar Electrolytic
Capacitor
SpeCIfications
CD Section Frequency response
Format ........... . ............................... Compact disc, digital audio system Normal tape (LH) ..................... 40 to 14,000 Hz t 3 dB
Pick up ................... ..3-Beam, semiconductor laser Signal-to-noise ratio
Frequency response ......... ...20 Hz to 20 kHz, $0.5 dB DOLBY NR ON ...................... Better than 60 dB
Total harmonic distortion .. .. Less than 0.04% (1 kHz) Dimensions ................ 280 mm (11-1/16") W
Signal-to-Noise ratio ....... Better than 98 dB 185 mm (7-5/16") H
Dynamic range ................. Better than 92 dB 263 mm (10-3/8") D
Wow & flutter ............................... Below measurable limit Weight ........................................... 4.3 kg (9.5 lbs) net
Cassette deck Section
Track format ................................. 4-track/2-channel system a Design and specifications 3 subject to changes without notice
Tape speed 4.75 cm/sec. for improvements. _ _
Wow/flutter ........................ 0.1% max (WRMS) " Due to local laws andhregulaglionsithts unilt and in some areas
' - - - are not equipped wit varia e vo tage se a ors.
Fast forwarding (rewmdlng) tlmeA 150 ' Dolby noise reduction manufactured under license from Dolby
....................................................... pprox. SEC. Laboratories Licensing Corporation.

(for 060 tape)

DOLBY and the double-D symbol lI] are trademarks of Dolby
Laboratories Licensing Corporation.

Page 2

MC-1000/1000L

(CD & Deck Section)

Cautions Concerning Handling of The Laser

The following label has been affixed to the unit, listing the proper procedure for working with the laser beam.

(UL and XX model only)

PRODUCT COMPLIES WITH DHHS
RULES 21 CFR, SUBCHAPTER J.
PART 1040. 10.

MANUFACTURED.

(EU model only)

ADVARSEU
u ussmhmvmhum, (GSA model :3an
SIKKIIIIEDSM MRS El "DE
Ar r .umo unsmus: CERTIFIELD ONLY TO CANADIAN

ELECTRICAL CODEI

CERTlFlE EN VERTU DU CODE
CANADIAN DE L'ELECTRICITE
SEULEMENT.

(EU model only)

CLASS 1
LASER PRODUCT

1. BLOCK DIAGRAM OF CASSETTE DECK SECTION

PLAY ADJ TO I7P SYSTEM
CONTRO T
DECK vVRZlA DECK) L ERMINAL

J I
PLAY #94

->
HEAD z

\ \
vVRl\ \

I9 20 I7 (8 DECK) \ I4 in you
vlC 2 ilC I
PLAY PRE AMP Vow-A
DOLBY NOISE REDUCTION vozo

ISL 9 2 l6
DECK s 5 men
BIAS TRAP FILTER REC LEVEL
a/P E
0 L. V was xFLi vics
HEAD w I \ :vvv/ Izv
vlCl ll
SELECTOR yon. 'ZV nLD2

VVR4

. \

aIAs ADJ 3/ l\c you 5 " SPEED ONI DIRECTION
OFF

H 0N INDICATOR
1 DOLBY -
L2 v024 I nLDl
c / bx

l "7 'iv

v025 e
ERASE x 3 '05'0 [-,
HEAD C0 v0 14 m6

aIAs WM ' ' ' ' '
FREQUECNCY _ J 1/] d 0/1 3/1 U U
M REC PLAY Cr02 M DIR PLAY C102
VVR5 i HIGH SPEED (A DECK) k W 2 V
was: NORMAL SPEED (A DECK) a DECK A DECK

MOTOR