Agilent Technologies 8453 Operator's Manual page 188

Table 39
Table 40
Diagnostics and Troubleshooting
General Troubleshooting Hints
Power Switch LED On — Front Panel LED Off — Shutter Does Not Click
Possible Causes
8-bit configuration switch sets the instrument
to resident mode.
Spectrophotometer data acquisition (SDA)
board disconnected or defective.
Main power supply (MPS) not connected to
spectrophotometer processor main (SPM)
board.
Main power supply (MPS) or
spectrophotometer processor main (SPM)
board defective.
Power Switch LED Flickering — Front Panel LED Off — Shutter Does Not Click
Possible Cause
Main power supply (MPS) not connected to
spectrophotometer processor main (SPM)
board.
82
Action
Correct 8-bit configuration switch settings
and turn instrument off, then on again.
Because the wavelength recalibration is lost,
perform a wavelength recalibration with your
software.
Connect or replace spectrophotometer data
acquisition (SDA) board.
Connect main power supply (MPS) to
spectrophotometer processor main (SPM)
board.
Replace main power supply (MPS) or
spectrophotometer processor main (SPM)
board.
Action
Connect main power supply (MPS) to
spectrophotometer processor main (SPM)
board.