Essilor Instruments APH 550, Maintenance Manual, Page: 23 / 78

21
5-9 Error message "Right Disk
○
Error" or "Left Disk
○
Error" appears
※
"
○
" is a number.
Main causes when error message "Right Disk
○
Error" or "Left Disk
○
Error"
appears:
・
Failure of either LD-R assy or LD-L assy
Note: If the error is not displayed frequently, the device can be used without replacing the LD-R
assy or the LD-L assy.
In such case, however, use the device after confirming that the error does not appear
anymore by pressing the clear key and performing the initial operation.
“Right Disk
○
Error” or
"Left Disk
○
Error" appears.
YES
NO
OK
Replace either the LD-R
assy or the LD-L assy.
Does "Right Disk
○
Error" or "Left Disk
○
Error" appear even after pressing the clear
key and performing the initial operation?