HP Portable 386 Compaq Portable 386 Personal Computer Maintenance and Service - Page 24

Table 6-2. Central Processing Unit Error Codes 1xx - xx Range,

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the problem. After completing each step, run the DIAGNOSTICS Program to verify that the error condition has been corrected. If the error code reappears, perform the next step, then run the DIAGNOSTICS Program. Continue until the DIAGNOSTICS Program no longer detects an error condition. The error codes are in the form of AYY - XX or AAYY - XX. A or AA represents the faulty subassembly. YY denotes the test or action that failed. XX denotes a specific problem. For example, error code 603 - 07 indicates that the diskette drive write/read/compare test failed. For assistance in the removal and replacement of a particular subassembly, see Chapter 8, "Removal and Replacement Procedures." Table 6-2. Central Processing Unit Error Codes (1xx - xx Range) Error Code Error Description Recommended Action 101 - 01 Central Processing Unit Replace the system board and retest for error code 101 - 01 102 - 01 Numeric coprocessor The following steps apply to error initial status word codes 102 - 01 through 102 - 15: incorrect 1. Verify jumper setting. 102 - 02 Numeric coprocessor 2. Verify coprocessor is the initial control word proper speed. incorrect 3. Replace the coprocessor and retest. 102 - 03 Numeric coprocessor 4. Replace the system board tag word not all ones and retest. 102 - 04 Numeric coprocessor tag word not all zeros 102 - 05 Numeric coprocessor exchange command failed 102 - 06 Numeric coprocessor masked exception incorrectly handled 102 - 07 Numeric coprocessor unmasked exception incorrectly handled Error Code Error Description Recommended Action 102 - 08 Numeric coprocessor The following steps apply wrong mask bit set in to error codes 102 - 01 status register through 102 - 15: 102 - 09 Numeric coprocessor unable to store real number 102 - 10 Numeric coprocessor real number calculation 1. Verify jumper setting. 2. Verify coprocessor is the proper speed. 3. Replace the coprocessor and retest. 4. Replace the system board

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the problem. After completing each step, run the DIAGNOSTICS Program to
verify that the error condition has been corrected. If the error code
reappears, perform the next step, then run the DIAGNOSTICS Program. Continue
until the DIAGNOSTICS Program no longer detects an error condition.
The error codes are in the form of AYY - XX or AAYY - XX. A or AA represents
the faulty subassembly. YY denotes the test or action that failed. XX
denotes a specific problem. For example, error code 603 - 07 indicates that
the diskette drive write/read/compare test failed.
For assistance in the removal and replacement of a particular subassembly, see
Chapter 8, "Removal and Replacement Procedures."
Table 6-2. Central Processing Unit Error Codes (1xx - xx Range)
==============================================================================
Error
Code
Error Description
Recommended Action
------------------------------------------------------------------------------
101 - 01
Central Processing Unit
Replace the system board and retest
for error code 101 - 01
------------------------------------------------------------------------------
102 - 01
Numeric coprocessor
The following steps apply to error
initial status word
codes 102 - 01 through 102 - 15:
incorrect
1. Verify jumper setting.
102 - 02
Numeric coprocessor
2. Verify coprocessor is the
initial control word
proper speed.
incorrect
3. Replace the coprocessor
and retest.
102 - 03
Numeric coprocessor
4. Replace the system board
tag word not all ones
and retest.
102 - 04
Numeric coprocessor
tag word not all zeros
102 - 05
Numeric coprocessor
exchange command failed
102 - 06
Numeric coprocessor
masked exception
incorrectly handled
102 - 07
Numeric coprocessor
unmasked exception
incorrectly handled
------------------------------------------------------------------------------
Error
Code
Error Description
Recommended Action
------------------------------------------------------------------------------
102 - 08
Numeric coprocessor
The following steps apply
wrong mask bit set in
to error codes 102 - 01
status register
through 102 - 15:
102 - 09
Numeric coprocessor
1. Verify jumper setting.
unable to store real
2. Verify coprocessor is the
number
proper speed.
3. Replace the coprocessor
102 - 10
Numeric coprocessor
and retest.
real number calculation
4. Replace the system board