MAI COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN
SERVICE GROUP(S): MINI                 MFG: BASIC FOUR

 NACS  TYPE(S): N071                   MFG. MODEL(S): HS UPTIME

CATEGORY: DIAGNOSTICS                  DESC: HS CPU ROM DIAGNOSTIC

                   *** TABLE OF CONTENTS AS OF 09/02/95 ***                     

FIB 00001.General Information.........................................10/30/86
FIB 00002.UPTIME runs but outputs only to the parallel printer(s).....02/26/81
FIB 00003.Explanation of Memorex fault light during UPTIME run........02/26/81
FIB 00004.Canned diagnostics loop back to start before completed......02/26/81
FIB 00005.UPTIME does NOT check the memory parity bit.................02/26/81
FIB 00006.UPTIME shows false disk failures on 510, 610, & 730 systems.09/23/81
FIB 00007.UPTIME disk read failures may be caused by various controlle10/01/81
FIB 00008.Problems installing 4208 UPTIME.............................03/22/83
FIB 00009.4208 UPTIME memory bank failure.............................03/28/83
FIB 00010.Cautions for when UPTIME reports a disk failure.............12/05/85


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------Table Of Contents Pg01 of 01


FIB 00001                                                             10/30/86

                          *** General Information ***
               ***  NACS  MACHINE TYPES AND FEATURE NUMBERS ***

                 4208 - UPTIME for BBIII/BBIV Lightning Systems

                UPTIME
                MODEL       PART NO.          DESCRIPTION/SYSTEM
                ------------------------------------------------             
                 005        0R997818        1350 CPU - T-80 Disk
                 006        0R997811        1350 CPU - Memored Disk
                 007        0R997804        1350 CPU - Priam Disk

                      *** UPTIME MODEL IDENTIFICATION ***

There are two ways to identify the models of UPTIME. Firts, note the labels on
the PROM. The label is broken down into three parts. The first two characters
represent their position on the PCBA. The middle character is the model number.
The last character is the revision level of the program contained within the
PROM.

Example: A1-1.5

A1 This PROM goes into position A1 of the PCBA
-1 This UPTIME board is a Model 001
.5 The PROM contains the 5th revision of the programfor this model

If the PROM labels are not legible, the model can be identified by th serial
number as shown in the chart below:

                                     PROM            SERAL
                     MODEL           LABEL           NUMBER
                     -----------------------------------------
                      005           E2-5.3      50000 to 59999
                      006           E2-6.1      60000 to 69999
                      007           E2-7.0      70000 to 79999

                        *** AVAILABLE DOCUMENTATION ***

              UPTIME On Site Diagnostic Reference Card  S-HDBK-298

                            UPTIME OPERATOR'S GUIDE
                      -----------------------------------
                      Model 005................S-HDBK-296
                      Model 006 & 007..........S-HDBK-297

                           *** AVAILABLE TRAINING ***

             Training is included in Basic Four BBIII/BBIV classes

                   *** SPECIAL ADMINISTRATIVE PROCEEDURES ***

 At installation time, the installing F.E. must obtain customer signature on a
service contract addendum which states the UPTIME is the property of  NACS  and
that the UPTIME will be surrendered to  NACS  upon termination of the service
contract.

 After installation of the UPTIME PROMs is complete and checked out, place the
PROMs removed from the HSCPU PCBA in the UPTIME shipping carton and place the

DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB001 Pg001


carton inside the CPU cabinet. These are the property of the customer and will .
be replaced in the HSCPU PCBA upon termination of the service contract.

 UPTIMEs are capital expenditure items. Each one has a serial number etched in
the PCBAs. If a unit goes defective and must be replaced, update the customer
contract addendum mentioned above. Then the defective unit must be returned to
KOP for repair, using a Fixed Asset Movement Notice form.

ORIGINATOR: H. MITCHELL


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB001 Pg002


FIB 00002                                                             02/26/81

        *** UPTIME runs but outputs only to the parallel printer(s) ***

SYMPTOMS: System will not load BOSS but run light comes on

          UPTIME runs but outputs only to the parallel printer(s)

FIX: These two symptoms can be caused by ANY of the following:

        1. The -16.75 volts missing
        2. The one and only 8-way defective on a 510-730 system
        3. The ACCESSORY PCB defective on a 200-410 system

ORIGINATOR: M. NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB002 Pg001


FIB 00003                                                             02/26/81

          *** Explanation of Memorex fault light during UPTIME run ***

 The fault light on the B/4 Interface PCBA may come on at three different times
while running the UPTIME diagnostics.

1. The fault light will come on after the drive status test. This happens when
the UPTIME is testing the drive to find out how many heads are physically on the
drive. If the drive only has four or eight heads, the fault light will come on
during this test.

2. When running the "E" utility, UPTIME will try to read from all 12 heads on
each of the first four cylinders. If there are only four or eight heads on the
drive, the fault light will come on when UPTIME trys to read from the
non-existant heads.

3. When running the "C" utility, if you select a head less than 12 ( C in HEX )
and that head does not exist, UPTIME will try to read from that head and the 
fault light will come on.

ORIGINATOR: M. NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB003 Pg001


FIB 00004                                                             02/26/81

         *** Canned diagnostics loop back to start before completed ***

 This problem may be caused by a slow memory board. It will normally follow the
slow board. This will help in locating the failing, slow board. It has also been
found, in some cases, that a bad board may cause ALL of memory to fail in this
manner. If this is the case, it may be necessary to run UPTIME with only one
memory board at a time until the failing board is located.

 The problem that the customer may be experiencing is that the system may
intermittantly hang in a RUN or go into a HALT.

 The looping problem has been caused by a defective ACCESSORY or CPU board.

ORIGINATOR: M. NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB004 Pg001


FIB 00005                                                             02/26/81

              *** UPTIME does NOT check the memory parity bit ***

 UPTIME does NOT check the memory parity bit during any of the diagnostics. If
this bit if failing, the UPTIME will not detect it!

 The memory test in the Babysitter and memory test in the utilities are both
different from the memory test in the Canned routines. All of these tests should
be run when looking for a failure on the system.

ORIGINATOR: M. NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB005 Pg001


FIB 00006                                                             09/23/81

      *** UPTIME shows false disk failures on 510, 610, & 730 systems ***

Basic Four is presently shipping Adapter Buss PCB's P/N MM820050, with
a revision level of "N". These "N" level PCB's have ECN 7126 installed
on them to correct error 07 problems. This ECN has also been installed
in the field on some Adapter Buss boards.

With this ECN installed, UPTIME will not preform the disc read properly.
It will indicate a failure of all discs.

In the near future an engineering change will be released to correct
this problem. The purpose of this alert is to make the field aware that
the problem exists and not to attempt to do anything about it at this
time.

ORIGINATOR: D. WOODWARD


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB006 Pg001


FIB 00007                                                             10/01/81

     *** UPTIME disk read failures may be caused by various controllers ***

There have been instances where UPTIME has displayed "DRIVE 0 READ -
FAILED" and the problem was not in the drive. The DMA board was
causing the failure. This could be caused by the disc DMA, a tape DMA
or a IMLC board.

To help determine the cause of a disc read failure use the utilities
to get the disc status.

ORIGINATOR: D. GOEHRISCH


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB007 Pg001


FIB 00008                                                             03/22/83

                    *** Problems installing 4208 UPTIME ***

Due to the large number of problems installing the 4208 UPTIMEs
I am suggesting actions that can be taken to correct some problems.

1. Make sure all the pins are completely down on the PCB. if not,
   place a soldering iron on the top of the pin until the pin is
   resting on the PCB, makeing sure the pins are still in a straight
   line.
2. When installing the UPTIME on the Lightning Processor board, make
   sure each PCB is seated beside the next PCB and not on top of it.
   You may have to take a file to the sides of the UPTIME PCBs to
   make this happen.

3. To replace broken pins order P/N OR997833 (Socket Terminal Carrier
   asm.) This is a carrier of 24 pins that can be used one at a time.

If you can not get an UPTIME to work send it back to King of Prussia.
(Using a Fixed Asset Movement Notice.)

ORIGINATOR: MARK NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB008 Pg001


FIB 00009                                                             03/28/83

                    *** 4208 UPTIME memory bank failure ***

32K Memory Boards P/N MM831020 will be tested twice by UPTIME. Once at
proper address and once at proper address + 256K.

Because the Memory Board answers twice "BANK SEL" showes failure. See
illustration below.

Any questions contact Mark Nunan at (215)296-6248.

        90 NACS
        RT CLOCK - OK
        M BANK 0 - OK   M BANK 1 - OK
        M BANK 2 - OK   M BANK 3 - OK <------32K BOARD P/N MM831020
        M BANK 4 - OK   M BANK 5 - OK
        M BANK 6 - OK   M BANK 7 - OK
        M BANK 8 - **   M BANK 9 - **
        M BANK A - OK   M BANK B - OK <------ACTUALLY BANK 2 AND 3
        M BANK C - **   M BANK D - **
        M BANK E - **   M BANK F - **
        BANK SEL - FAILED

        ADAPTOR - OK
        DRIVE 0 - OK
        DRIVE 1

ORIGINATOR: MARK NUNAN


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB009 Pg001


FIB 00010                                                             12/05/85

            *** Cautions for when UPTIME reports a disk failure ***

PROBLEM:  UPTIME may report a removable disk drive as "FAILED" although the
          system is operating properly.

SOLUTION:  UPTIME tests 4 cylinders of a drive for a 1350 CPU and 64 cylinders
           for a non-High Speed CPU.  Since UPTIME firmware constraints did not
           allow space to deal with alternate tracks, the display will report
           the drive as having failed UPTIME.  This reported 'Failure' does not
           therefore indicate a real problem if an alternate track within the
           range of tested cylinders is encountered.  Page 4 of the customer's
           UPTIME instruction book states that the FE "will determine if a
           hardware problem exists".  Keep the above information in mind during
           this determination.

ORIGINATOR: J. VAN OORDT


DIAGNOSTICS-BASIC FOUR-HS UPTIME--------------------FIB010 Pg001