Panasonic sl mc 7 service manual
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Page 1
Service
COMPACT
DIGITAL AUDIO
TRAVERSE DECK
I Specifications
I AUDIO
No. of channels
Frequency response
Output voltage
Dynamic range
SIN
Harmonic distortion
Wow and flutter
DA converter
Output Impedance
Load impedance
COMPACT
DIGITAL AUDIO
TEXT
2 (left and right, stereo)
2 - 20,000 Hz, :1 dB
2 V (at 0 d8)
92 dB
100 dB
0.007% (1 kHz, 0 dB)
Below measurable limit
MASH (1 bit)
Approx. 1 k9
More than 10 k9
ORDER NO. MD9905076C2
anual
Compact Disc Changer
MASH
mum-sung noise shaping
SL-MC7
Colour
(K) . . . Black Type
Area
Suliix for
Model No. Area Colour
(E) Europe
(EB) Great Britain (K)
(EG) Germany and Italy
RAE01522-M Mechanism Series
I PICKUP
Wavelength
I General
Power supply
Power consumption
Dimensions (W x H x D)
Weight
Notes :
750 nm
AC 230 - 240 V, 50 Hz
14 W
430 X171 x 392 mm
7.2 kg
Specifications are subject to changes without notice.
Weight and dimensions are approximate.
A WARNING
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 of 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 information by anyone else could result in serious injury or death.
Technics®
© 1999 Matsushita Electronics (S) Pte. Ltd.
All rights reserved. Unauthorized copying
and distribution is a violation of law.
Page 2
SL-MC7
I Contents
- ACCESSORIES ......................................................
0 HANDLE PRECAUTIONS FOR TRAVERSE DECK
' PRECAUTION OF LASER DIODE .
- CAUTION FOR AC MAINS LEAD
- CONTROLS
° CONNECTIONS.
- BASIC OPERATIONS
- DISC GROUPING PLAY
° CD-TEXT FUNCTION
- SELF-DIAGNOSIS FUNCTION
0 OPERATION CHECKS......t......
- TYPE ILLUSTRATION of ICs TRANSISTORS and DIODES 23
I Accessories
PAGE
I TERMINAL FUNCTION OF ICs ......................................... 23 ~ 25
- WIRING CONNECTION DIAGRAM
. BLOCK DIAGRAM ........................
- TROUBLESHOOTING GUIDE
- SCHEMATIC DIAGRAM ........
0 PRINTED CIRCUIT BOARD ......
' CABINET PARTS LOCATIONS .
- LOADING MECHANISM PARTS
0 REPLACEMENT PARTS LIST...
- RESISTORS 8: CAPACITORS ......
- PACKING MATERIALS 8t ACCESSORIES .
0 PACKAGING
AC power cord
for others
AC powercordfor I
United Kingdom only
Remote control
Stereo connection cable
3
33°
0
Notebook-like binder Numbered stickers
Batteries
I Handling Precautions for Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential diilerence caused by static electricity of clothes or human body.
So, be carelul of electrostatic breakdown during repair of the traverse deck (optical pickup).
- Handling of traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity
as it is extremely sensitive to electrical shock.
2. The short land between the No.4 (LD) and No.5 (GND) pins on the
flexible boards (FFC) is shorted with a solder build-up to prevent
damage to the laser diode.
To connect to the PC board, be sure to open by removing the
solder build-up, and linish the work quickly.
3. Take care not to apply excessive stress to the flexible board (FFC
board).
4. Do not turn the variable resistor (laser power adjustment). it has
already been adjusted.
- 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 conducive material (sheet) or steel sheet on the area where
the traverse deck (optical pickup) is placed, and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded through the
wrist strap. So, take care not to let your clothes touch the traverse deck
(optical pickup).
FFC board
(Handle It carelully)
Lens (Do not touch)
Variable resistor
(Do not turn)
Wrist strap
(Anti-static bracelet) /
1 Iron plate or some metals to
conduct electricity