ZKTECO White LCD Serials User Manual
Q: After the fingerprint device is power on, the LCD show
incompletely, only half screen, sometimes jumbled, what happens,
how should solve?
A:
The possible reason is
1)
Motherboard is bad;
2)
Caused by Liquid crystal internal matter. By now need to contact
supplier, and return it for repair.
Q: How to clear the administrator of the attendance device
?
A
: User can use the computer software connect the attendance device
and the computer, after it’s successful, enter attendance device
management page, select to cancel the administrator, can clear the
administrator in attendance device. After stop the connection, user
can enter attendance device menu.
Q: When fingerprint device go on connection communication the
sound “ding, ding” appears, what the cry reason is?
A:
1)
When Uses the RS-232 communication, maybe the computer baud
rate is inconsistent with the fingerprint device baud rate.
2)
If uses the RS-485 communication, then possibly was two lines of
the converter counter- join, or sticks in.
Q: After device power is on, LCD display always shows “Please try
again
”.
A: Cause
:
1)
For long time using, surface of fingerprint sensor becomes dirty,
or there are some scratches on it, the device takes it as a fingerprint
and does verification.
2)
Fingerprint connection cable of fingerprint sensor is loosed
.
Chip
-on-board is broken down
.
Measure
:
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Содержание White LCD Series
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