----------------------------------------------------------------------------------------------- Auto Ref/Keratometer CRK-8800 52
Phenomenon6: Cannot see the eye fixation target
Check whether LED is out
Is LED out?
Yes
Change the Optical Head with
Motor Board
No
Take off the head front cover
Replace LED
Phenomenon7: The results of Refractometry of TEST MODEL EYE is very different
from the original value when the focusing bright spot is somewhat out-focused
Enter into 'REF TEST'
Enter into 'TEST MODE'
Enter into 'CCD' mode (by pressing CCD button twice)
Defocus very slightly until showing some
other 'Light' (we call it as 'Ghost')
Enter into 'CAPT' mode
Enter into 'DISP' mode
Change the Optical Head with
Main Board
Check whether 'Ghost' is captured
Yes
No
Do Ref Data Setup Process
using setup model eye