Schematic Diagram -Main Board (1/4) - Sony MZ-E800 Service Manual

MZ-E800
6-5. SCHEMATIC DIAGRAM – MAIN Board (1/4) – •
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
/ W or less unless otherwise
4
specified.
• % : indicates tolerance.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
•
See page 37 for Waveforms. See page 38 for IC Block Diagram.
(Page 36)
• A : B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground in
playback mode.
no mark : PLAYBACK
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
– 29 –
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E
: PLAYBACK
– 30 –
(Page 31)
(Page 33)
(Page 35)