Nidek Medical CP-690, Service Manual

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4.3 The Motors do not Stop.
Adjust the voltage of each sensor.
(See 6.2.)
Is the problem corrected?
Replace the sensor whose motor does
not stop.
As for the chart sensor, see 5.3.1.
As for the mask sensor, see 5.3.2.
Is the problem corrected?
Is each voltage between TP1 and TP3
(of the chart sensor) and between TP2
and TP3 (of the mask sensor) on the
BA01
board as follows?
When the shading plate blocks the
light, ..………………… +4.5 to 5 V
When the shading plate does not
block the light, ……… under +0.5 V
Replace the BA01 board.
(See 5.2.1.)
Y
Do the J4 and J6 connectors on the
BA01
board have poor contact?
Reconnect the connectors.
Y
End
N
Replace the BA01 board.
(See 5.2.1.)
N
Y
N
Y
End
N