Samsung VP-L900, Training Manual

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Circuit Operating Description
6-24 Samsung Electronics
6-2-3 Capstan servo
(1) Capstan Speed Control
The rotary detection sensor of the capstan motor is used the MR sensor.
520cycle The wave occurs in 1 rotation.
In order to get the tape speed of 14.345 mm/s from recording mode 1.82646rps with the motor rotates.
The C.FG frequency becomes 520°ø1.82646=949.76Hz.
SP LP
SPEED CAP FG REMARKS SPEED CAP FG REMARKS
-19 16767.887 REW -19 8707.974
-15 13427.935 -15 6925.546
-9 8234.158 -9 4201.929
-7 6451.697 RPS -7 3280.430 RPS
-5 4642.682 -5 2351.990
-1 942.578 EDIT- -1 473.968 EDIT-
0 0 STILL 0 0 STILL
1 949.76 PLAY 1 475.774 PLAY
5 4822.282 5 2397.134
7 6803.836 7 3368.199
9 8816.543 FPS 9 4348.225 FPS
15 15049.014 15 7332.134
19 19373.939 FF 19 9360.642
<Table 6-12 NTSC>
SP LP
SPEED CAP FG REMARKS SPEED CAP FG REMARKS
-15 18063.543 REW -15 9502.354
-11 13561.525 -11 7054.290
-9 11229.276 -9 5807.485
-7 8840.23 RPS -7 4545.120 RPS
-5 6392.286 -5 3266.901
-1 1310.772 EDIT- -1 661.690 EDIT-
0 0 STILL 0 0 STILL
1 1327.55 PLAY 1 665.925 PLAY
5 6812.141 5 3372.797
7 9663.946 7 4752.727
9 12592.696 FPS 9 6150.785 FPS
11 15601.549 11 7567.33
15 21873.078 FF 15 10457.365
<Table 6-12 NTSC>