Sony HCD-E301, Руководство по обслуживанию

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HCD-E301
13 13
SECTION 6
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and 1 /
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
• C : panel designation.
Note on Printed Wiring Board:
•
W
: indicates side identified with part number.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• A : B+ Line.
•
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
F
: FM
f
: AM
E
: TAPE PLAY
a : RECORD
J : CD PLAY
6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location
MAIN board
HEADPHONE board
CASSETTE board DISPLAY board
POWER board
Note: The components identified by mark
0
or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.