20
MAINTENANCE & TROUBLE SHOOTING
TURN OFF THE POWER BEFORE REPAIR
RPOBLEM
PROBABLE CAUSES
SOLUTION
No operating or
with Buzzing sound
when Power turn
ON
There is no power supplied or
the cord loosened
Check the power supply and
cord
The screw chamber is
overloaded with too many
screws
Remove some screw out to a
proper level
Problem with power switch,
motor or PCB
Replace the faulty switch,
motor or PCB
Screw has fallen down in the
machine
Remove the screw dropped
Sensor position wrong
Adjust the sensor position
Sensor is blocked
Remove the block
Roller stopped
Roller motor malfunction
Replace the roller motor
Roller has got stuck or gears
have been stripped
Remove the stuck or replace
new gear
No screw comes out
from Rail
Width of rail groove is incorrect Adjust the width of rail groove
Screw with abnormal posture
stops halfway in the lock gate
Adjust the height of brush
Lock gate too small
Adjust the lock gate
Screw is caught at holding
plate abnormally
Remove the misplaced screw,
and adjust the height of
holding plate.
Vibrated motor malfunction
Replace the vibrated motor
No signal output
Main board burn out or
connector loosened
Check if the output voltage is
5V by electric meter.
1. If yes, check the connector
2. 2. If no, replace the main
board
