Nidek Medical CP-690, Service Manual

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4.8 The Chart Image is not Clear.
Adjust the focus of the chart. Is the
image still not clear?
(As for the adjustment method, See the
operator’s manual.)
Y
Clean the holder ASSY. Is the image
still not clear?
(See 5.13.3.)
Clean the chart ASSY. Is the image
still not clear?
(See 5.13.1.)
Replace the screen.
N
End
N
End
N
End
Y