Sony Walkman WM-FX171, Service Manual

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WM-FX171/FX173/FX177
5-5. SCHEMATIC DIAGRAM
(FX173 MODEL)
— 21 — — 22 — — 23 —
Note:
• 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 /
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 3V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PB (TAPE)
(
) : AM
< > : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
f
: AM
E
: PB
• Abbreviation
CND : Canadian model
IT : Italian model
EE : East European model
EA : Saudi Arabia model
FR : French model
C & SA : Central and South America models