9
M-740V
Specification Value:
Tape Speed Adjustment
Setting:
VOL control
: mechanical mid
VOR switch
: OFF
Procedure:
• Reform 2.4 cm/s speed adjustment before 1.2 cm/s speed
adjustment mode : playback
Frequency difference between the beginning and the end of the
tapeshould be within ±0.5%.
Adjustment Location :
First remove the plate, blind.
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-24 (tape center part) and adjust RV602 so that
reading on the digital frequency counter becomes 3,000 Hz.
0000
EAR jack (J102)
digital frequency
counter
set
16
Ω
test tape
WS-24: tape speed 1.2/2.4cm/s
(3 kHz, –10 dB)
Remove the
plate, blind.
RV602
(1.2 cm/s)
RV601
(2.4 cm/s)
Speed adjustable
resistors
Tape Speed
1.2/2.4 cm/s
Frequency counter
2,880 to 3,120 Hz
