III
- 7
3.2.5 Cutter Motor Drive Circuit
Figs. 3.2-4 and 3.2-5 show the cutter motor drive circuit and the cutter sensor circuit,
respectively. The cutter motor is a DC motor.
The CPU (#3) activates the transistor array (TA7291F, #5) through P86 and P87 to drive
the cutter motor.
Table 3.2-1 shows the motor control logic.
Fig. 3.2-4 Cutter Motor Drive Circuit
Fig. 3.2-5 Cutter Sensor Circuit
Table 3.2-1 Motor Control Logic
State
P86
P87
On standby
0
0
Clockwise rotation
1
0
Counterclockwise rotation
0
1
Braking
1
1
Содержание PT-2500PC
Страница 1: ...SERVICE MANUAL MODEL PT 2500PC ...
Страница 2: ...SERVICE MANUAL MODEL PT 2500PC ...
Страница 5: ...CHAPTER I SPECIFICATIONS ...
Страница 11: ...CHAPTER II MECHANISMS ...
Страница 49: ...CHAPTER III ELECTRONICS ...
Страница 68: ...CHAPTER IV TROUBLESHOOTING ...
Страница 72: ...IV 3 3 The ON OFF lamp LEDs will not come on 4 No printing is performed ...
Страница 73: ...IV 4 5 Interface malfunctions 6 No tape cutting ...
Страница 74: ...IV 5 7 Tape feeding error ...
Страница 75: ...IV 6 ...
Страница 76: ...APPENDICES Circuit Diagrams A Main PCB B Power Supply PCB ...
Страница 79: ...Nov 98 5V2086BE0 Printed in Japan ...