Toshiba Libretto 50CT/70CT Manual

3.11  Hard Disk Test3  Tests and Diagnostics3-26Libretto 50CT/70CT Maintenance ManualSubtest 03Random address/data
This subtest writes random data to random addresses on the HDD cylinder,
head, and sector.  This data is then read and compared to the original data.
Subtest 04Cross talk & peak shift
This subtest writes eight types of worst pattern data (shown below) to a
cylinder, then reads the data while moving from cylinder to cylinder.
Worst pattern
dataCylinderB5ADAD0 cylinder4A52521 cylinderEB6DB62...

3 Tests and Diagnostics3.12  Real Timer TestLibretto 50CT/70CT Maintenance Manual3-273 
3.12 Real Timer TestTo execute the Real Timer Test select 9 from the Diagnostic Test Menu, press Enter and
follow the directions on the screen.  The real timer test contains three subtests that test the
real timer functions.  Move the highlight bar to the subtest you want to execute and pressEnter
.Subtest 01Real time
A new date and time can be input during this subtest.  To execute the real time
subtest follow these...

3.12  Real Timer Test3 Tests and Diagnostics3-28Libretto 50CT/70CT Maintenance ManualSubtest 03Real time carry
CAUTION:  When this subtest is executed, the current date and time areerased.This subtest checks the real time clock increments, making sure the date and
time are displayed in the following format:
Current date:12-31-1995
Current time:23:59:58
Press Enter to display the following:
Current date :01-01-1996
Current time :00:00:00
PRESS [Enter] KEY TO EXIT TEST
Press Ctrl + Break to exit. 

3 Tests and Diagnostics3.13  NDP TestLibretto 50CT/70CT Maintenance Manual3-293.13 NDP Test
To execute the NDP test select 10 from the Diagnostics Test Menu, press Enter and follow
the directions on the screen.  The NDP test contains one subtest that tests the NDP functions.
Subtest 01NDP Test
This test checks the following functions of the coprocessor:
q Control word
q Status word
q Bus
q Addition
q Multiplication
Press Ctrl + Break to exit. 

3.14  Expansion Test3 Tests and Diagnostics3-30Libretto 50CT/70CT Maintenance Manual3.14 Expansion Test
To execute the Expansion Test select 11 from the Diagnostics Test Menu, press Enter and
follow the directions on the screen. The expansion test contains one subtest.
NOTE:  To execute this subtest, the PC card wraparound connector is required.Subtest 01PCMCIA wraparound
This test checks the following signal line of the PC card slot:
q Address line
q REG#, CE#1, CE#2 line
q Data line
q Speaker line
q...

3 Tests and Diagnostics3.15  Sound TestLibretto 50CT/70CT Maintenance Manual3-313.15 Sound Test
To execute the Sound Test select 12 from the Diagnostics Test Menu, press Enter and follow
the directions on the screen.  The sound test contains two subtests that test the sound
functions.
NOTE:  To execute this subtest, the internal microphone and external headphone (orexternal speaker) are required.WARNING:  The system is capable of producing high volume sound, so when you use theheadphones, be careful to...

3.16  Error Codes and Error Status Names3 Tests and Diagnostics3-32Libretto 50CT/70CT Maintenance Manual3.16 Error Codes and Error Status NamesTable 3-2 lists the error codes and error status names for the diagnostics tests.Table 3-2  Error codes and error status names (1/3)Device nameError codeError status name(COMMON)FFData Compare ErrorSystem01ROM Checksum ErrorMemory01Parity Error02Protected Mode Not Changed14Memory Read/Write ErrorDDCache Memory ErrorKeyboard01Mouse Interface Error02IPS Interface...

3 Tests and Diagnostics3.16  Error Codes and Error Status NamesLibretto 50CT/70CT Maintenance Manual3-33Table 3-2  Error codes and error status names (2/3)Device nameError codeError status nameASYNC (cont.)08TX-BUFFER Full Time Out10Parity Error20Framing Error40Overrun Error80Line Status Error88Modem Status Error33No Carrier (Card Modem)34Error (Card Modem)36No Dial Tone (Card Modem)HDD01Bad Command Error02Address Mark Not Found04Record Not Found05HDC Not Reset Error07Drive Not Initialized08HDC Overrun...

3.16  Error Codes and Error Status Names3 Tests and Diagnostics3-34Libretto 50CT/70CT Maintenance ManualTable 3-2  Error codes and error status names (3/3)Device nameError codeError status namePCMCIAC1Address Line ErrorC2REG# Line ErrorC3CE#1 Line ErrorC4CE#2 Line ErrorC5DATA Line ErrorC6WAIT Line ErrorC7BSY# Line ErrorC8BVD1 Line ErrorCDNo PCMCIA 

3 Tests and Diagnostics3.17  Hard Disk Test Detail StatusLibretto 50CT/70CT Maintenance Manual3-353.17 Hard Disk Test Detail Status
When an error occurs in the hard disk test, the following message displays:
HDC status = XXXXXXXXDetailed information about the hard disk test error displays on the screen by an eight-digit
number.  The first four digits represent the hard disk controller (HDC) error status number
and the last four digits are not used.
The hard disk controller error status is composed of 2...