
English _8
Check the level of the light received from the monitor output signal.
You can use the tester to measure the DC voltage and refi ne your adjustment.
Check the output voltage of the tester and close the cover.
Output Voltage
Optical Axis Status
SIA-0120 SIA-0120D
3.0V or higher 2.2V or higher
Good
2.9V or lower 2.1V or lower
To be adjusted
Using the attenuation fi lm for optimal adjustment of the optical axis
Attach the attenuation fi lm to the refl ection part of the receiver in order for fi ne-
tuning after the initial optical axis adjustment.
Make adjustment until the “Good LED” turns green.
Remove the attenuation fi lm and close the cover.
The attenuation fi lm is a special fi lm designed especially for blocking the
external light from the transmitter by 90% and allowing infl ow of only 10%.
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