H132637 - G50 AND G41 MONITORS INTERMITTENTLY BLINK                          
                                                                                
 SYMPTOM:                                                                       
 G41 and G50 monitors intermittently blank for .5 to 1 second.                  
                                                                                
 PROBLEM ISOLATION AIDS:                                                        
 This tip is only applicable to 6542-30x and 6543-10x monitors,                 
 when attached to PS/2, ValuePoint and PC system units.                         
                                                                                
 Note:                                                                          
 This tip DOES NOT APPLY when these monitors are attached to                    
 3483/3488/3489 Display system units (MFI pancakes that allow                   
 the monitor to act as a host attached terminal).  See additional               
 note below.                                                                    
                                                                                
 FIX:                                                                           
 Problem background:                                                            
 In order to Sync (synchronize), the monitor counts Vertical                    
 Sync pulses generated by the video controller in the system                    
 unit as it searches for a mode it recognizes.  When it                         
 recognizes a mode, the monitor assumes the image geometry                      
 (height, width, etc.) programmed for that mode.                                
                                                                                
 Testing has revealed the mode counter becoming corrupted if a                  
 clock pulse leading edge coincides with a Vertical Sync pulse                  
 leading edge.  When this happens, the monitor erroneously reacts               
 as if it has detected a mode change and blanks the display until               
 it re-syncs.                                                                   
                                                                                
 The modes that are most effected are:                                          
                                                                                
  640 by 480 at 85 Hz and                                                       
  800 by 600 at 85 Hz.                                                          
 However, as each video chipset produces slightly different                     
 timings, these modes may not be affected, but other modes                      
 may.                                                                           
                                                                                
 Note:                                                                          
 During mode changing, it is normal for the monitor to blink.                   
                                                                                
 FIELD FIX:                                                                     
 Changing the resolution or refresh rate will change the count                  
 and prevent the problem from occurring in that mode. Refer to                  
 the documentation shipped with the monitor for the available                   
 modes.                                                                         
                                                                                
 Permanent fix:                                                                 
 A new microprocessor is being produced which corrects this                     
 problem.  This microprocessor cannot be installed in the                       
 field.  This fix should be implemented on new production                       
 in 2nd quarter, 1996.                                                          
                                                                                
 Additional note:                                                               
 The G41/G50 monitors are not supported for applications with                   
 3483/3488/3489 Display system units at this time.  When the                    
 G41/G50 microprocessor is changed, then the G41/G50 monitor                    
 will be supported for 3483/3488/3489 Display system                            
 applications.