Sony M-730V Service Manual page 9

Tape Speed Adjustment
Setting:
VOL control : mechanical mid
VOR switch : OFF
FAST PB switch : ON (M-830V model only)
Procedure:
• Reform 2.4 cm/s speed adjustment before 1.2 cm/s speed adjust-
ment mode : playback
test tape
WS-24: tape speed 1.2/2.4cm/s
(3 kHz, –10 dB)
set
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.
Specification Value:
Tape Speed
1.2/2.4 cm/s
Frequency difference between the beginning and the end of the
tapeshould be within ±0.5%.
digital frequency
counter
0000
16 Ω
EAR jack (J101)
Frequency counter
2,880 to 3,120 Hz
Adjustment Location :
First remove the plate, blind.
– 9 –
Remove the
plate, blind.
RV602
(1.2 cm/s)
RV601
(2.4 cm/s)
Speed adjustable
resistors