III - 17
3.2.13 Cover Open Sensor Circuit
Fig. 3.2-16 shows the cover open sensor circuit.
This circuit detects the open/closed state of the cassette cover.
The sensor input level is low with the cover closed, while it is high with the cover
open.
With the cover open, all drives are disabled.
Fig. 3.2-16 Cover Open Sensor Circuit
3.3 POWER SUPPLY PCB
Commercially available power is supplied to the power supply PCB through the
power supply cord, which is inserted into an inlet. The inlet has a total of three
wires, one of which is for grounding, and the other two are for inputting AC voltage
into the power supply PCB. The switching regulator of the power supply PCB
stabilizes the AC voltage to generate DC voltage (VH: +24V ±0.3V for the thermal
head and the DC motor, and Vcc: +5V DC±0.25V for the logic components),
supplying it to the main PCB.
Содержание P-touch PRO DX PT-9200DX
Страница 1: ...SERVICE MANUAL MODEL PT 9200DX ...
Страница 2: ...SERVICE MANUAL MODEL PT 9200DX ...
Страница 5: ...CHAPTER I SPECIFICATIONS ...
Страница 11: ...CHAPTER II MECHANISMS ...
Страница 66: ...CHAPTER III ELECTRONICS ...
Страница 89: ...CHAPTER IV TROUBLESHOOTING ...
Страница 92: ...IV 2 2 The tape cassette type is not detected correctly 3 The LED does not light up ...
Страница 93: ...IV 3 4 No printing is performed 5 The interface malfunctions ...
Страница 94: ...IV 4 6 The tape is not cut ...
Страница 95: ...IV 5 7 The tape is not fed correctly ...
Страница 96: ...IV 6 ...
Страница 97: ...IV 7 8 Half cut is not possible ...
Страница 98: ...IV 8 9 The tape is not ejected forcibly ...
Страница 99: ...APPENDIX Circuit Diagram Main PCB Power Supply PCB 100 120V Power Supply PCB 230V ...
Страница 101: ......
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Страница 104: ...Sep 2000 5V2106BE0 Printed in Japan ...