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Diagnostics and Troubleshooting
Error Messages
Table 29 Cooling Fan Defective
Possible Causes Action
Number of cycles per minute sensed at fan is
too low. Fan is defective.
Replace cooling fan.
Number of cycles per minute sensed at fan is
too low. Electronics failed.
Replace spectrophotometer processor main
(SPM) board.
Table 30 Digital Signal Processor Error
Possible Causes Action
SIMM memory module on SPM board
missing or in wrong position.
Make sure a module of minimum 1 MB is
plugged into the position located towards the
front panel of the instrument.
Communication error between the main
processor and one of the digital signal
processors located on the SPM or SDA board.
Cable between SDA board and SPM board
disconnected or defective.
Reconnect or replace cable.
Communication error between the main
processor and one of the digital signal
processors located on the SPM or SDA board.
Electronics failed.
Replace spectrophotometer processor main
(SPM) board.
Replace the spectrophotometer data
acquisition (SDA) board.
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