Sony TC-366 Service Manual page 20

11-22. Flywheel Brake Check
— in REW mode —
Be sure that the flywheel brake comes
in contact with the flywheel.
fly wheel
Fig. 11-28 Flywheel brake check
11-23. Tape Speed Adjustment
(1) Playback the SONY speed check tape (SPC-47) at 19 cm/s
(741A ips) tape speed in horizontal position.
(2) If the counter reading is out of 3,960~4,040 Hz, replace with
the motor pulley with identifying mark shown below.
(As for Part No. of the motor pulley, refer to page 40.)
deviation -3% -2% -1% iy +1% +2% 43%
frequency 3980 4020
on counter 3880 3920
3960 4000 4040
4080 47120"
4160
IN Fos
FED, oS.
oe Ae
4
identifying mark +3 +2 +1 40.5 0 -0.5 -7 -2 -3
on motor pulley
SONY speed check tape SPC-47
no signal 4kHz ye 0 signal
4min ~ > 25min. 26 min.
Standard
19cm/s(7 14 ips) | 9.Scm/s(334 ips) | 4.8cm/s(17% ips)
Deviation (%) £1.5
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