Panasonic sj md 100 service manual

Page 1

ORDER NO. M89902001C2

Service Manual

Minidisc Deck

SJ-MDi 00

Colour
(K) ...... Black Type

Areas

(E) ........ Europe.

(EB) ...... Great Britain.
(EG).. . Germany.

twin:
_ in raw ~

Specifications

System: Minidisc digital audio system
Recording; Magnetic field modulation direct overwrite
Reading; Non-contact optical system with

Semiconductor laser (7»:780 nm)
44.1 kHz

ATRAC

2 channels, stereo

5 - 20.000 Hz(10.3 dB)

99 dB

97 dB

Below measurable limit

Sampling trequency:

Coding system:

Channel:

Frequency response:

S/N (Play):

Dynamic range (Play):

Wow and flutter:

Input:
Analog input (Level/Impedance);
Digital input (OPTICAL IN 1, OPTICAL N 2)

500 mV/47 ki)

Wavelength; 660 nm
Output:
Analog output (Level/impedance); 2.0 V/SOO it
Digital output (OPTICAL);
Hated output -t 7 dBm
Wavelength 660 nm

Headphone output level: 15 mW max. 32 (2 (adjustable)

General

Power supply: AC 230 V - 240 v.50 Hz

Power consumption: 13 W
Dimensions (Wx H>< D): 430x300><103 mm
Weight: 3.4 kg
Notes:

Specifications are subject to change without notice.
Weight and dimensions are approximate.

US and foreign patents licensed from Dolby Laboratories
Licensing Corporation.

AWARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. it does not
contain warnings or cautions to advise non-technical individuals oi potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service intormation by anyone else could result in serious injury or death.

Technics

©1999 Matsushita Electric industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Page 2

SJ-MD100

l Contents

Accessories ..........
Handling Precautions for Traverse Deck
Precaution of Laser Diode,
Caution for AC Mains Lead
Connections ..........
Location of Controls .
Basic Recording Operations
Functions to Assist Recording
Other Playback modes . 12~14

Convenient Functions 15
Editing MDs ............. . 16~23
Timer Recoding and Playback 24
Operation Checks and

Component Replacement Procedures ..................................... 25~33

I Accessories

AC power supply cord Opticaliiber cable
For (EB) area (RJAOOMVC) ..
For (E),(EG) areas (RJAOOAa-C

The Illustration shows an AC poewer supply
cord for (EB) area.

Self-Diagnostic Function ,
Self Check Function .
Schematic Diagram ..
Printed Circuit Board Diagram
Wiring Connection Diagram
Type Illustration of IC Tran5istors and Diode
Block Diagram
Terminal Function 0
Measurements and Adjustments
Replacement Parts List
Cabinet Parts Location.
MD Mechanism Parts Location .
Packaging

\

Remote control transmitter
(EUR645272) ,, . ................................. 1 (Re/LReMMei .......................................... 2

I Handling Precautions for MD Unit

The laser diode in the MD unit (optical pickup) may break down due to potential difterence caused by static electricity of clothes or human body,
So, be careful of electrostatic breakdown during repair of the MD unit (optical pickup),

0 Handling of MD unit (optical pickup)

1. Do not subject the MD unit (optical pickup) to static electricity as it is
extremely sensitive to electrical shock.

2. To prevent the breakdown of the laser diode, an antistatic shorting
pin is inserted into the ilexible board (FFC board).
When removing or connecting the short pin, finish the job in as short
time as possible.

3. Take care not to apply excessive stress to the flexible board (FFG
board).

0 Grounding tor electrostatic breakdown prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity from
your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where
the traverse deck (optical pickup) is placed, and ground the sheet.
Caution:
The static electricity at your clothes will not be grounded through the
wrist strap. 80, take care not to let your clothes touch the traverse deck
(optical pickup).

i=i=c

(Handle it carefully)

@'
V

S ..........

Stereo connection cables
(RJLi XOD7BOS) .......................................... 1 (RJL2P004BO8) ........................................... 1

Batteries

Note: There are available on sales route.

Lg)

Shorting pin or Clip

7 w)
t

Wrist strap

(Anti-static bracelet)

iron plate or some metals
to conduct electricity

1M1)