Sony CDX-715 Cirquit Diagram
CDX-715
SERVICE MANUAL
SPECIFICATIONS
System Compact disc digital audio system
Laser diode properties Material: GaAlAs
Wavelength: 780 nm
Emission Duration: Continuous
Laser out-put Power: Less than 44.6 µW*
* This output is the value measured at a
distance of 200 mm from the objective lens
surface on the Optical Pick-up Block.
Frequency response 10 – 20,000 Hz
Wow and flutter Below the measurable limit
Signal-to-noise ratio 94 dB
Outputs BUS control output (8 pins)
Analog audio output (RCA pin)
US Model
Canadian Model
AEP Model
UK Model
E Model
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-250B-137
Optical Pick-up Name KSS-521A/J2N
Currnet drain 800 mA (during CD playback)
800 mA (during loading or ejecting a disc)
Operating temperature –10˚C to +55˚C (14˚F to 131˚F)
Dimensions Approx. 262 × 90 × 181.5 mm
(10 3/8 × 3 5/8 × 7 1/4 in.)
(w/h/d)
not incl. projecting parts and controls
Mass Approx. 2.1 kg (4 lb. 10 oz.)
Power requirement 12 V DC car battery (negative ground)
Supplied accessories Disc magazine (1)
Parts for installation and connections (1 set)
Design and specifications subject to change without notice.
MICROFILM
COMPACT DISC CHANGER
7-3. SCHEMATIC DIAGRAM – RF Section – • See page 25 for Note on Schematic Diagram. • See page 39 for Waveforms. • See page 41 and 42 for IC Block Diagrams.
CDX-715
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CDX-715
7-5. SCHEMATIC DIAGRAM – MAIN Section – MAIN Board (1/2)
• See page 39 and 40 for Waveforms. • See page 42 to 44 for IC Block Diagrams. • See page 45 and 46 for IC Pin Function Description. • See page 36 for Note on Schematic Diagram. • See page 29 to 32 for Printed Wiring Board.
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– MAIN Section – MAIN Board (2/2)
• See page 40 for Waveforms. • See page 43 and 44 for IC Block Diagrams. • See page 29 to 32 for Printed Wiring Board.
CDX-715
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
¢
•
• U : B+ Line.
• H : adjustment for repair.
• Power v oltage is dc 14.4 V and f ed with regulated dc power
• Voltages and waveforms are dc with respect to ground
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
: internal component.
supply from CD changer controller.
under no-signal conditions.
no mark : PLAY
Voltage variations may be noted due to normal production tolerances.
Voltage variations may be noted due to normal production tolerances.
J : CD
: Impossible to measure
∗
4
W or less unless otherwise
– 35 – – 36 –
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