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P
PD
D--D
D22775
50
0
SERVICE MANUAL
Compact Disc Changer
Effective : November, 2001
S-0047A
CONTENTS
1 SPECIFICATIONS
2
2 EXPLODED VIEWS AND PARTS LIST
3
3 PC BOARDS AND PARTS LIST
8
4 WIRING DIAGRAM
12
5 BLOCK DIAGRAM
13
6 IC BLOCK DIAGRAM
14
NOTES
PC boards shown are viewed from parts side.
The parts with no reference number or no parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
£
Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
Parts of [ ] mark can be used only with the version designated.
£


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1 SPECIFICATIONS
2
System ..............................................Digital compact disc changer
Pickup ........................................................................3-beam laser
Error correction ......................................................................CIRC
Sampling frequency ..........................................................44.1 kHz
D/A converter ........................................................Dual 1-bit linear
Digital filter ..................................................8-times oversampling
Frequency response..................................................20~18,000 Hz
Total harmonic distortion........................Less than 0.02 % (1 kHz)
S/N ratio ..............................................................More than 96 dB
Wow and flutter..........................................Below measurable limit
Channel separation ..................................More than 90 dB (1 kHz)
Output voltage max. ........................................................1.8 Vrms
General
Power requirements ............230 V AC, 50 Hz (Europe/U.K. model)
Power consumption ..........................................................12 watts
Dimensions (W x H x D) ................................435 x 115 x 390 mm
(17-1/8" x 4-2/4" x 15-3/8")
Weight..............................................................6.2 kg (13-5/8 lbs.)
Standard Accessories
Wireless remote control RC-722 x 1
Pin plug cord x 1
Battery (SUM-3, "AA", "R6" type) x 2
Improvements may result in specification or feature changes
without notice.
SAFETY INFORMATION
This product has been designed and manufactured according to FDA
regulations "title 21, CFR, chapter 1, subchapter J, based on the Radiation
Control for Health and Safety Act of 1968", and is classified as a class 1
laser product. There is no hazardous invisible laser radiation during
operation because invisible laser radiation emitted inside of this product
is completely confined in the protective housings.
The label required in this regulation is shown 1.
OCAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
Optical pickup:
Material
: Ga-Al-As
Wavelength
: 765 - 815nm (25
)
Laser output : Continuous wave max. 0.7mW
1 For U.S.A.


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2 EXPLODED VIEWS AND PARTS LIST
3
EXPLODED VIEW-1


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4
EXPLODED VIEW-1
£
£
£
£
£
INCLUDED ACCESSORIES


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EXPLODED VIEW-2
5