Schematic Diagram -Main Board (2/4); Schematic Diagram -Main Board (3/4) - Sony MZ-E800 Service Manual

6-8. SCHEMATIC DIAGRAM – MAIN Board (4/4) – •
(Page 30)
•
See page 37 for Waveforms. See page 39 for IC Block Diagrams.
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
specified.
• % : indicates tolerance.
• C : panel designation.
– 35 –
(Page 29)
• A : B+ Line.
• Total current is measured with MD installed.
• Power voltage is dc 1.5V and fed with regulated dc power
1
/ W or less unless otherwise supply from battery terminal.
4
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
( ) : CHARGE
∗
: Impossible to measure
(Page 31) (Page 34) (Page 32)
• 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.
– 36 –
MZ-E800