- 
A continuum or arc lamp was switched on, but no corresponding "ON" signal in
PMAS Status Window, box "LIGHT".
  
 
- 
The lamp may be dead, the lamp sensor failing, or the lamp shutter
disfunctional.
 
 
 
- 
Take a test exposure to verify that the lamp, in fact, is not operational.
 
 
- 
If so, lamp no. 2 and 4 may be switched against the corresponding spare lamps
on-the-fly, use buttons of lamp GUI.
 
 
- 
Lamp 1 and 6 have no built-in spare subsystems. Call staff for lamp replacement.
 
 
     
    
    
    
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