Xo 4, Troubleshooting Manual, Page: 77 / 88

XO 4 & XO FLEX TROUBLE SHOOTING GUIDE
Version 3.30 77
Failure description Reason Solution
The XO operating lamp does
not switch when it reaches
working position 1 or 2
Parameter not defined in the
“technician menu” Check whether the operating
light can be switched on by
passing your hand under the
sensor. If yes, check that the
parameter under “
Lamp/CH ” is
defined as “ enable” in the
technician menu.
Refer to “technician menu” on
page 26.
if defined properly, and still no
light
do the following checks.
LED Check if the power cable of the
OP light is correctly connected to
the “Stand controller” AO-891. It
supplies the OP Light with
24VDC.
If the fuse on the “Stand
Controller” card is not blown
(LED on).
Halogen If the power cable CA-013 is
correctly connected on the
jumper J20 situated on “MAIN
PCB” AN-378
Check the transformer output
voltage.
The OP lamp does not
switch on when placing the
hand under the sensor.
The PCB is defective When the detection is made, a
click is heard.
If no click, change the sensor
PCB
No Power Read statement above for the
LED.
The OP lamp LED shines
faintly.
The LED is defective Change the LED Light AO-638
How to measure voltage
output on OP light?
Measuring output voltages and
current on the CA-013 cable Disconnect the cable CA-013
and CA-066 situated in the OP
lamp arm.
In voltmeter Mode:
Measure the output voltage of
the CA-013 (between 24 and
25VDC).
In Ampere mode (mA)
Measure the intensity output on
CA-013 (same contact)
To dim the intensity, activate the
sensor under the OP light or
pedal.
Expected output:
•
624 mA: full
•
380 mA: middle
•
283 mA: low.