[Symptom: Brightness is insufficient.]
TROUBLESHOOTING
Start
Check the lamp for
deterioration (darkness).
Measure the voltage applied to
the lamp (with the lamp
connected).
100 V class 15 V±0.75 V
200 V class 14.6 V±0.75 V
Replace the lamp.
Mount the lamp correctly.
Check the supply voltage.
Connect power that
meets the rating.
4-5
Is the lamp normal?
Is the lamp correctly
mounted?
Does the applied
voltage meet the
rating?
Is the mechanical iris
normal?
Does the supply
voltage meet the
rating?
The transformer is defective.
Replace the lamp.
Repair the mechanical iris.
NO
NO
NO
NO
NO
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