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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         :  ECC27232     DATE             : 91-06-20
 MANDATORY         :  N
 AUTOMATIC SHIPMENT:  N            SERVICE CODE     : 33
 PARTS SOURCE      :  FUJI         AVAILABILITY DATE: 89/12
                                                                                
 PURPOSE: THIS ECA IS RELEASED FOR JAPAN USE ONLY                               
 TO FIX SYSTEM HUNG CAUSED BY ERRATA OF KEYBOARD MPU DURING                     
 MOUSE OPERATION.                                                               
 THIS PROBLEM MAYBE OCCUR HIGH INTERMITTENTLY ON SMART/MICRO                    
 CADAM APPLICATION S/W.                                                         
                                                                                

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

 Plant                                                          

 S09/  B/M0005551 9700001 THRU 9719311     B/M57F0083 00.5 00.5 
   SR9                                                          
 T09/  B/M0005551 9730001 THRU 9744587     B/M57F0083 00.5 00.5 
   TR9                                                          
 T0A/  B/M0005551 9760001 THRU 9775698     B/M57F0083 00.5 00.5 
   TRA                                                          
 T0B/  B/M0005551 9790001 THRU 9793081     B/M57F0083 00.5 00.5 
   TRB B/M0005551 97Q0001 THRU 97Q1905     B/M57F0083 00.5 00.5 
 V0A   B/M0005551 97W0001 THRU 97W1228     B/M57F0083 00.5 00.5 
 V0B                                                            

                                                                                
 PHYSICAL CHECK:                                                                
 CHECK KEYBOARD MPU ON SYSTEM BOARD.                                            
 IF I8742(P/N 72X8455)IS USED,APPLY THIS FBM.                                   
 FOR KEYBOARD MPU LOCATION,REFER TO FBM INSTALLATION INSTRUCTION.               
                                                                                
 PREREQUISITES: NONE                                                            
                                                                                
 COMPANION: NONE                                                                
                                                                                
 CONCURRENT: NONE                                                               
                                                                                
 DETAIL:                                                                        
 CHANGE KEYBOARD MPU FROM I8742(P/N 72X8455) TO I8042AH(P/N                     
 90X9052) ON SYSTEM BOARD.                                                      
                                                                                
 NOTES:  THE FBM IS AVAILABLE FOR ONE YEAR.
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