Nidek Medical CP-690, Service Manual

Page: 17 / 70

4 - 7
Is the polarizing filter burnt? (is it
brown?)
N
Y
Is the polarized chart dark?
N
Is the voltage between the 1st and 2nd
pins of the J2 connector over DC 5 V?
(when the setting of SW2 is channel 2)
Replace the chart ASSY.
(See 5.5.)
N
Replace the transformer.
(See 5.9.)
Y
Y
Replace the screen.
N