Agilent Technologies 8453 Operator's Manual page 189

Table 41
Diagnostics and Troubleshooting
General Troubleshooting Hints
Front Panel LED Red
Possible Cause
An appropriate error message should occur in your software. For explanation of error
messages, see "Error Messages" on page 71.
Lamp door open or missing.
Lamp door sensor defective.
Shutter failed or disconnected.
Spectrograph disconnected or defective.
Spectrophotometer lamp power supply (SLS)
board disconnected or defective.
Action
Close or replace door.
Replace spectrophotometer lamp power
supply (SLS) board.
Connect or replace shutter.
Connect or replace spectrograph.
Connect or replace spectrophotometer lamp
power power supply (SLS) board.
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