Sony WM-FX50 - Electrical Alignment Procedures

Procedure :
Function : TAPE
Mode : Forward
speed checker or
digital frequency
counter
test tape
WS-48A
(3kHz, 0dB)
headphones jack
Playback the center part of the test tape (WS-48A)
and adjust RV601 to obtain the tape speed to the
following value.
Reading on Reading on digital
speed checker frequency counter
+1.0% 3,000Hz + 30Hz
Specification :
Frequency difference between the beginning and the
end of test tape should be within + 3% (+ 90Hz)
after adjusted the tape speed.
Electrical alignments
ONLY for WM-FX50
Adjustment Location
TUNER BOARD
— Component Side —
TUNER FLEXIBLE
TP
(REG OUT 1.1V)
RV (fmax 9V)
| Sl
BOARD L2 TP (TUNING VOLTAGE)
(AM 630kHz TRACKING)
$2
TAPE/RADIO
BAND
f min
RV51
TUNING
f max
CT3
2nd OSC
SMH) (FM fmax)