Schematic Diagram - Main Section - Sony CFD-S28 Service Manual

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SCHEMATIC DIAGRAM – MAIN Section (2/3) – •

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.

• All resistors are in Ω and

W or less unless otherwise

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

•

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-

tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

: CD

– 35 –

(Page 33)

(Page 37)

– 36 –

CFD-S28

The components identified by mark ! or dotted

line with mark ! are critical for safety.

Replace only with part number specified.

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