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                           IBM ECA
              Engineering Change Announcement

Parts removed from this machine and returned to IBM must be genuine,
                      unaltered IBM Parts

         IBM World Trade Corporation, CE Department Germany
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 EC NUMBER         :  EC341450     DATE             : 89-05-23
 MANDATORY         :  N
 AUTOMATIC SHIPMENT:  N            SERVICE CODE     : 33
 PARTS SOURCE      :  EMO          AVAILABILITY DATE: 89/05

 ABSTRACT:  MICRO CODE CHANGE EC (VERSION 3.02K)
                                                                                
 PURPOSE:                                                                       
 THIS ECA IS RELEASED FOR WORLD TRADE USE ONLY                                  
 MICROCODE CHANGE (VERSION 3.02K)                                               
                                                                                

 Type            Machines Affected                              
 Mod. With       and/or Feature/Device     B/M to be  Serv Syst 
 Stg. B/M        Description               Installed  Hour Hour 

 Plant 99                                                       

 5575 B/MBASIC   S/N 9980001-9989980       B/M09F6006 00.5 00.5 
  F02                                                           
 5575 B/MBASIC   S/N 9950001-9960230       B/M09F6016 00.5 00.5 
  B02                                                           

                                                                                
 PHYSICAL CHECK:                                                                
 IF LOGIC CARD EC# IS "341450" THIS BM HAS ALREADY INSTALLED.                   

 PREREQUISITES: NONE                                                            
                                                                                
 COMPANION: NONE                                                                
                                                                                
 CONCURRENT: NONE                                                               
                                                                                
 DETAIL:                                                                        
 THIS EC PREVENT THE FOLLOWING TROUBLES,                                        
 1.CARRIER DRIVE ERROR WHEN PRINTING FULL SPAN LEVEL E GRID LINE                
   AT HIGH SPEED BY MULTIPLAN.                                                  
 2.DISTORTION OF VERTICAL LINE PRINTING(B02 ONLY).                              
 3.PRINTING HUNG UP IN DOS K3.30 FOR PS/55 S/T.                                 
*** CANCELLED ***

 4.PRINTING HUNG UP IN 5250PC (S/38 ATTACHED AND SPOOL CANCEL).                 
 5.POR I/F TIMING (PS/55 NON-S/T ATTACHED AND RNA10 TEST).                      
 6.PRINT POSITION ERROR BY TRACTOR GEARS' BACKLASH.                             
 7.CARRIER DRIVE ERROR IN 3270PC/G.                                             

 NOTES: NONE                                                                    
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