
 
 -7 - 
 
 
 
906138 MPP2-keypad-002
Membrane Switch
(DW079LG& DCE079G)
906137 MPP2-keypad-001
Membrane Switch
(DW079LR& DCE079R)
 
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Horizontal application 
defective 
Check x-axis and y-axis bubble circuit 
board connection cable ,or replace the 
Membrane Switch 
Calibration can't saved 
Replace the storage IC
 Main PCBA
 
Calibration limit beyond 
precision scope Adjust the compensation glass / 
Weak beam Replace the laser 
 
Uneveling Replace stepping motor 904290 NRL800HT-01-02_04
Stepper Motor
 
Light is out of working Replace the Membrane Switch
Unit won't receive 
remote control signal. Check receiver connection cable / 
Vertical application 
defective 
Check z-axis bubble circuit board 
connection cable ,or replace the 
Membrane Switch
Rotation head loose from 
frame. /wercsehtnetsaF
Battery indicator lights 
flash 
Battery voltage is low, need to 
recharge / 
No alarm Replace Main PCBA 
Scan function defective Replace 
Slope out of tolerance 
Loosen the four M2.5 screws on the Main
PCBA. Move the Main PCBA 
 left or right to correct the slope. 
Tighten the screws. 
/ 
Unable to enter the 
calibration mode Replace main PCBA 
Button doesn't work Data cable looses ,reinstall the data 
cable 
/ 
 
Main PCBA 
Main PCBA 
906484 DW080LGS-01-01_88 
Main Laser Module(DW079LG)
906482 MPP-01-01_88 
Main Laser Module(DW079LR)
906485 DW079LG-00-00_88 
Main Laser Module(DCE079G)
906482 MPP-01-01_88 
Main Laser Module(DCE079R)
906138 MPP2-keypad-002
Membrane Switch(GREEN)
906137 MPP2-keypad-001
Membrane Switch(RED)
906138 MPP2-keypad-002
Membrane Switch(GREEN)
906137 MPP2-keypad-001
Membrane Switch(RED)
905243 NRL-ECV-001_A20
Counter Photo-Eye PCBA