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ECA 087 - 8535 / 40 system board


ECA 087 - 8535 / 40 system board
8535/8540 fixed drive restore/hardcopy print problems

 

PURPOSE:
This ECA provides a replacement system board for an 8535 or 8540 system unit that may experience either of the two following problems:
  1.  Hardfile data corrupted during restore operations from  Diskette Drive or tape unit and/or
  2.  Extra random characters during (parallel port) hardcopy  print operations.

PHYSICAL check:
To qualify for replacement of the system board, the system unit must meet both of the following requirements:

System serial number must fall within the following serial number ranges:

8535

Model 8535-040,1. serial number 23-a0000 to 23-m9999
2. serial number 78-txd00 to 78-xpv99

Model 8535-043,1. serial number 23-aa000 to 23-tc999
2. serial number 78-aaaa0 to 78-bltg9

Model 8535-24x,1. serial number 23-td000 to 23-zk999
2. serial number 78-blth0 to 78-cykp9

8535 Greenock production

Model 8535-040 not available
Model 8535-043 serial numbers below 55-hrfd0
Model 8535-24x serial numbers below 55-mpxa9
Model 8535-14x serial numbers below 55-nyvk0

8540

Model 8540-040,1. serial number 23-aa000 to 23-nm999
2. serial number 78-nm000 to 78-pm999

Model 8540-043,1. serial number 23-aaa00 to 23-lgx99
2. serial number 78-ymkw0 to 78-zffy9

Model 8540-045,1. serial number 23-aaaa0 to 23-lydx9
2. serial number 78-xbx00 to 78-ydg99

8540 Greenock production

Model 8540-043 serial numbers below 55-maahl
Model 8540-045 serial numbers below 55-mll41

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System board FRU part number must be P/N 85F0077 or P/N 92F0108.

NOTE:
Systems with serial numbers or system board FRU part numbers that are not listed above are not exposed to this problem and are not eligible for this ECA:.

DETAIL:
A limited number of 8535 and 8540 systems may experience one or both of the following problems:
  1.  Corrupted data on the hardfile during a restore operation  from a tape unit or Diskette Drive. This problem can only  occur with hardware which attaches to the system board  Diskette Drive connector (J15).

     systems utilizing backup/restore commands supplied with DOS  or OS/2 version of the IBM PS/2 internal tape backup program  are not affected.

  2.  Extra random characters during (parallel port) hardcopy  printing operations.  alternate method to determine affected systems without  removing the system cover is as follows:

     determine system BIOS date:
      -at the c:> type "BASIC" and press enter.
      -at the "OK" type the following line exactly as shown.
      def seg=-1:for x=5 to 12:print chr$(peek(x));:next
      -press enter
      -the system will display a date.
      -if "syntax error" is displayed instead of a date, verify that   the line was typed exactly as shown above. (there may be a   problem in that your system may show the fourth letter of the   word chr$ as a different character depending upon the language.   please use this as the normal character string.)
      -if the date displayed is 9/25/1991 or later, no action is   required, the system is not eligible for this ECA:.
      -if the date displayed is 9/24/1991 or earlier, the system is   eligible for this ECA:.
      -to return to the c:>, type "system" and press "enter".

      8535/8540 system board old FRU P/N's new FRU P/N
      identification 1.P/N 85F0077 P/N 92F0140
      2.P/N 92F0108



On site service will be provided for one year, from 10/23/91, to customers with affected systems.

NOTEs:
Order parts through normal distribution. All replaced system boards should be returned

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