RFI Emission OS-214plus Manual de servicio Pagina 15

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12
TTP-244 Plus Bar Code
Printer Service Manual
3
Gap sensor connector
JP53
Pin
Description
Voltage
1
GND
0V
2
Gap sensor emitter
Emitter on : 0.7~1.8V
Emitter off: 2.4~2.7V
3
Power
5V
4
GND
0V
5
Gap sensor receiver
No paper or gap: 3.1~3.2V
Detect paper: 0~0.3V
6
Power
5V
4
Ribbon encoder sensor & DC motor connector
JP37
5
Stepping motor connector
JP14
6
Print head connector
JP42
7
SD memory card module connector
JP44
8
Micro processor
U2
9
Power switch
SW2
10
Power supply output (24V DC) connector
B3
11
RS-232C connector
JP7
12
Centronics port connector (Option)
JP4
13
USB connector
JP9
14
Push button connector
JP52
Pin
Description
Voltage
1
LED green (PWR)
LED light on: 2.0~2.2V
LED light off: 0~0.3V
2
LED green (ONLINE)
LED light on: 2.0~2.2V
LED light off: 0~0.3V
3
LED red (ERR)
LED light on : 2.0~2.2V
LED light off: 0~0.3V
4
Pause switch
0V: Push key
3.3V: Stand-by
5
Feed switch
0V: Push key
3.3V: Stand-by
6
GND
0V
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