Schematic Diagram - Main Section (1/3); Schematic Diagram - Main Section (2/3) - Sony CFD-S28L Service Manual

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6-8. SCHEMATIC DIAGRAM – MAIN Section (2/3) – •
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L 1 3 9 4 2 2 9 6 5 1 3
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.
w w w • All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• U : B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal. .
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
∗
: Impossible to measure
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See page 39 for Waveforms. • See page 46 for IC Block Diagrams.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
x a o u 1 6 3
tion tolerances.
y
• Circled numbers refer to waveforms.
• Signal path. i
J
: CD PLAY
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3 7 6 3 1 5 1
(Page 33)
c o
.
2 4 2
9 8
5 0 8 9 2 4 9 8 2
(Page 37)
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Note: The components identified by mark ! or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
– 36 –
CFD-S28L
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