Trinity 788 Operation Manual
Trinity 788 Operation Manual
21
22
Solution for common error
Phenomenon
Cause
Solution
Press the finger on the fingerprint
collection window to open the door,
red light is on together with two short
beeps, and fails to open the door.
1. This fingerprint might be illegal
2. This fingerprint has already
been cleared
Apply a valid fingerprint
Open the door with a valid fingerprint,
red light is on with two short beeps,
and fails to open the door.
1. There is a large difference with
the position of the valid fingerprint
2. The fingerprint is damaged
Press the finger on the collection
window again, trying tominimize
the difference of the position
with that at the time of enrollment
Red light is constantly on
1. Change the batteries
2. Check Cable connection
1. Low battery voltage
2. PCB failure
Alarm sounds when open the door
Low battery voltage
Change the batteries
No response after pressing the buttons
No battery
Change the batteries
Often fail to verify the fingerprints
1. The finger is too dirty
2. The finger is too dry
3. The finger is too wet
4. The collection window is too
dirty
5. The finger press on the
collection window incorrectly
1. Clean the finger
2. Moisten the finger (e.g. touch the
forehead with the finger)
3. Wipe the finger
4. Clean the collection window
5. Press the finger with the method
on Page 2
Fail to enter the enrollment or
deletion mode
1. The finger for unlock is not the
master finger
2. The operational procedure is
incorrect
1. Confirm that you unlock with the
master finger
2. Review the instructions or contact
the after sales service
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