Rewinder Cover Open Sensor (7010R Only) - Tally Dascom 7010 Series Maintenance Manual

(8) Rewinder cover open sensor (7010R only)

The rewinder cover open sensor is used to detect the open/close status of the rewinder cover.
This sensor uses a mechanical switch.
U1 CPU
R166
OPN
P73
175
When the rewinder cover is closed, the lever of the SA, Interlock SW (rewinder cover open
sensor) is pressed by "A" and the switch turns ON. As a result, pin 175 (OPN) of U1 (CPU)
goes "Low".
When the rewinder cover is opened, the switch turns OFF and pin 175 (OPN) of U1 (CPU)
goes "High".
When the rewinder cover is opened, the ERROR LED blinks and the LCD displays "Error
Rewinder Open" on the operation panel.
SA, Interlock SW
ON
+3.3V J502
J16
2
2
R164
5
5
C100
[Main PCB]
OFF
SA, Interlock SW
J504
+RW
J701
1
1
R513
2
2
[SA, Rewinder Motor]
Q507
DTC114EM
[Rewinder PCB]
A
2-29
2-2. Operation of Control Parts
Rewinder Cover Open Sensor
J702
(SA, Interlock SW)
1
2
(Rewinder Cover)