Read Sony SRF-M97 Service Manual online
8
SRF-M97
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• C
: panel designation.
• A
: B+ Line.
• H
: adjustment for repair.
•
Power voltage is dc 1.5 V and fed with regulated dc power
supply from battery teminal.
supply from battery teminal.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
under no-signal (detuned) conditions.
no mark : FM
(
) : AM
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: FM
f
: AM
•
Abbreviation
JE
JE
: Tourist model
PA
: Panama model
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
SECTION 4
DIAGRAMS
•
Note for Printed Wiring Boards and Schematic Diagrams
Ver. 1.2
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