1100 Series DAD and MWD Reference Manual 67
Troubleshooting and Test Functions 3
Visible Lamp Current
The visible lamp current is missing.
The processor continually monitors the lamp current during operation. If the
current falls below the lower current limit, the error message is generated.
Probable Causes
• Visible lamp disconnected.
• Defective visible lamp.
• Defective detector main board.
• Defective power supply.
Suggested Actions
✔ Ensure the visible lamp connector is seated firmly.
✔ Exchange the visible lamp.
✔ Exchange the detector main board.
✔ Exchange the power supply.
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