Sony M-540V - Microcassette Recorder, Руководство по обслуживанию

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M-540V
Specification Value:
Tape Speed Frequency counter
2.4 cm/s 2,880 to 3,120 Hz
1.2 cm/s 2,850 to 3,150 Hz
Tape Speed Adjustment
Setting:
VOL control : mechanical mid
VOR switch : OFF
Procedure:
• Reform 1.2 cm/s speed adjustment before 2.4 cm/s speed
adjustment mode : playback
0000
EAR jack (J101)
digital frequency
counter
set
16 Ω
test tape
WS-24: tape speed 2.4cm/s
WS-12: tape speed 1.2cm/s
(3 kHz, –10 dB)
Frequency difference between the beginning and the end of the tape
should be within
±
0.5%.
2.4 cm/s (15 Hz)
1.2 cm/s (15 Hz)
Adjustment Location :
First remove the plate, blind.
Remove the
plate, blind.
RV601
2.4cm/s
RV602
1.2cm/s
speed adjustable resistors
1. Tape Speed : 2.4 cm/s
Playback WS-24 (tape center part) and adjust RV601 so that
reading on the digital frequency counter becomes 3,000 Hz.
2. Tape Speed : 1.2 cm/s
Playback WS-12 (tape center part) and adjust RV602 so that
reading on the digital frequency counter becomes 3,000 Hz.