5-5.
SCHEMATIC DIAGRAM
(FX173 MODEL)
— 21 —
— 22 —
WM-FX171/FX173/FX177
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
/
W or less unless otherwise
4
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 MΩ).
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
— 23 —