Nidek Medical SE-9090 Supra, Service Manual

Page: 60 / 350

LLE7D*RDA002B
48
5.2.34 Error 503 (Left H-axis origin sensor error)
When the L-Wheel
←
/
→
button on the hardware
test screen is pressed, does the L-Wheel encoder
value (to the right of
→
) change and the L spindle
block ASSY (40273-7200) move to the right or left
(see 8.1.2.2 [p170]) ?
No
5.2.34.1 L spindle block ASSY does not move right
or left (p49)
Yes
When the shading plate (40273-M261) shades the
sensor ASSY (40274-CA35), does the L-Wheel org
button (to the left of
← ) on the hardware test screen
turn red (see 8.1.2.2 [p170]) ?
Yes
End
No
Replace the sensor ASSY (40274-CA35) (see
7.2.9 [p132]) .
Is the problem resolved?
Yes
End
No
Replace the I/O board (40274-BA06) (see 7.3.4
[p137]) .