WM-FX171/FX173/FX177
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5-2. SCHEMATIC DIAGRAM
(FX171/FX177 MODELS)
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 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
PA : Panama model
C & SA: Central and South America models
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