2.7.
Tape Control Motor Excitation-Phase Check Mode ( " G " key )
This mode checks the excitation-phase of the tape control motor.
(1)
Press the "RET" key. The display shifts to the one as shown in Fig.24.
(2)
Press the "1" key to enter the mode for the phase positioning of tape control motor.
(3)
Shift the phase of the tape control motor by pressing the "Space" key one by one to add
the excitation on the selected phase for 3 seconds. On the other hand, change the
LCD display at the same time. See the following table (Table 1) showing the
combinations of the number displayed on the LCD and the excitation phase of the
motor.
Excitation phase of motor
(4)
Press the "2" key to enter the mode to set the starting phase of the tape control motor.
(5)
Use the numeric key to write the starting phase of the tape control motor into the
EEPROM. See the following table (Table 2) showing the combinations of the input
value and the starting phase of the motor.
(6)
Press the "6" key while the LCD displays as shown in Fig.23. The display shifts to the
Key Check Mode as shown if Fig. 19.
LCD display
Input value
Starting phase
Fig. 23
Fig. 24
4
3
CD
DA
Table 1
4
3
DA
AB
Table 2
III-66
2
1
AB
BC
2
1
BC
CD