Toshiba Libretto 50CT/70CT Manual

							Chapter 3Tests and Diagnostics 
						

							3-iiLibretto 50CT/70CT Maintenance Manual 
						

							Libretto 50CT/70CT Maintenance Manual3-iiiTable of Contents3.1  The Diagnostic Test.....................................................................................................3-1
3.2  Executing the Diagnostic Test.....................................................................................3-3
3.3  Subtest Names.............................................................................................................3-7
3.4  System Test.................................................................................................................3-9
3.5  Memory Test.............................................................................................................3-10
3.6  Keyboard Test...........................................................................................................3-12
3.7  Display Test..............................................................................................................3-14
3.8  Floppy Disk Test.......................................................................................................3-17
3.9  Printer Test................................................................................................................3-20
3.10  Async Test...............................................................................................................3-22
3.11  Hard Disk Test........................................................................................................3-24
3.12  Real Timer Test.......................................................................................................3-27
3.13  NDP Test................................................................................................................3-29
3.14  Expansion Test........................................................................................................3-30
3.15  Sound Test..............................................................................................................3-31
3.16  Error Codes and Error Status Names.......................................................................3-32
3.17  Hard Disk Test Detail Status....................................................................................3-35
3.18  Hard Disk Format....................................................................................................3-37
3.18.1  Function Description...........................................................................3-37
3.18.2  Operations...........................................................................................3-38
3.19  Head Cleaning.........................................................................................................3-41
3.19.1  Function Description...........................................................................3-41
3.19.2  Operations...........................................................................................3-41
3.20  Log Utilities.............................................................................................................3-42
3.20.1  Function Description...........................................................................3-42
3.20.2  Operations...........................................................................................3-42
3.21  Running Test...........................................................................................................3-44
3.21.1  Function Description...........................................................................3-44
3.21.2  Operations...........................................................................................3-44
3.22  Floppy Disk Drive Utilities.......................................................................................3-45
3.22.1  Function Description...........................................................................3-45 
						

							3-ivLibretto 50CT/70CT Maintenance Manual3.22.2  Operations...........................................................................................3-45 
						

							Libretto 50CT/70CT Maintenance Manual3-v3.23  System Configuration..............................................................................................3-49
3.23.1  Function Description...........................................................................3-49
3.23.2  Operations...........................................................................................3-49
3.24  SETUP....................................................................................................................3-50
3.24.1  Function Description...........................................................................3-50
3.24.2  Accessing the SETUP Program...........................................................3-51
3.24.3  Moving Within the SETUP Menu and Changing Values......................3-52
3.24.4  Accepting Changes and Exiting the SETUP Window...........................3-52
3.24.5  The Factory Preset Configuration........................................................3-52
3.24.6  SETUP Options...................................................................................3-53
Tables
Table 3-1  Subtest names (1/2)...........................................................................................3-7
Table 3-2  Error codes and error status names (1/3)..........................................................3-32
Table 3-3  Hard disk controller status register contents.....................................................3-35
Table 3-4  Error register contents.....................................................................................3-36
Table 3-5  Hard disk formatting sequence.........................................................................3-37 
						

							3  Tests and Diagnostics3.1  The Diagnostic TestLibretto 50CT/70CT Maintenance Manual3-13 
3.1 The Diagnostic Test
This chapter explains how to use the Diagnostic Test Program to test the functions of the
computer hardware modules. The Diagnostics Program is stored on the diagnostics disk.
NOTES:  To start the diagnostics, follow these steps:1. Check all cables for loose connections.2. Exit any application you may be using and close Windows.The DIAGNOSTICS MENU consists of the following functions:
q DIAGNOSTIC TEST
q HARD DISK FORMAT
q HEAD CLEANING
q LOG UTILITIES
q RUNNING TEST
q FDD UTILITIES
q SYSTEM CONFIGURATION
q EXIT TO MS-DOS
q SETUP
The DIAGNOSTIC TEST MENU contains the following functional tests:
q SYSTEM TEST
q MEMORY TEST
q KEYBOARD TEST
q DISPLAY TEST
q FLOPPY DISK TEST
q PRINTER TEST
q ASYNC TEST
q HARD DISK TEST
q REAL TIMER TEST
q NDP TEST
q EXPANSION TEST
q SOUND TEST 
						

							3.1  The Diagnostic Test3  Tests and Diagnostics3-2Libretto 50CT/70CT Maintenance ManualYou will need the following equipment to perform some of the Diagnostic test programs.q Diagnostics Disk (all tests)
q Formatted working disk for the floppy disk drive test
q External FDD
q Cleaning kit to clean the floppy disk drive heads (Head Cleaning)
q PC card wraparound connector  (PCMCIA test)
q Serial port wraparound connector (RS-232C test)
q Parallel port wraparound connector (Printer test)
q I/O Adapter
q Serial port direct cable
The following sections detail the tests within the Diagnostic Test function of the
DIAGNOSTIC TEST MENU. Refer to Sections 3.19 through 3.24 for detailed information
on the remaining Service Program Module functions. 
						

							3  Tests and Diagnostics3.2  Executing the Diagnostic TestLibretto 50CT/70CT Maintenance Manual3-33.2 Executing the Diagnostic TestToshiba MS-DOS is required to run the Diagnostics Program.  To start the Diagnostics
Program follow these steps:1. Connect a wraparound connector to the I/O adapter printer port and RS-232C port.
Connect the I/O adapter to the computer. Next, connect the FDD and insert the
diskette containing the test program.
2. Turn the computer on to execute the test program and the test menu will display.
The following menu displays:TOSHIBA personal computer xxx DIAGNOSTICS
version X.XX (c) copyright TOSHIBA Corp. 19XX
DIAGNOSTICS MENU :
1 - DIAGNOSTIC TEST
2 - HARD DISK FORMAT
3
4 - HEAD CLEANING
5 - LOG UTILITIES
6 - RUNNING TEST
7 - FDD UTILITIES
8 - SYSTEM CONFIGURATION
9 - EXIT TO MS-DOS
0 - SETUPNOTE:To exit the DIAGNOSTIC TEST MENU, press the Esc key.  If a testprogram is in progress, press Ctrl + Break to exit the test program or press Ctrl+ C to stop the test program. 
						

							3.2  Executing the Diagnostic Test3  Tests and Diagnostics3-4Libretto 50CT/70CT Maintenance Manual3. To execute the Diagnostic Test Menu from the Diagnostics Menu, set the highlight bar
to 1, and press Enter.  The following Diagnostic Test Menu displays:
TOSHIBA personal computer xxx DIAGNOSTICS
version X.XX (c) copyright TOSHIBA Corp. 19XX
DIAGNOSTIC TEST MENU :
 1 - SYSTEM TEST
 2 - MEMORY TEST
 3 - KEYBOARD TEST
 4 - DISPLAY TEST
 5 - FLOPPY DISK TEST
 6 - PRINTER TEST
 7 - ASYNC TEST
 8 - HARD DISK TEST
 9 - REAL TIMER TEST
10 - NDP TEST
11 - EXPANSION TEST
12 - SOUND TEST
88 - ERROR RETRY COUNT SET [HDD & FDD]
99 - EXIT TO DIAGNOSTICS MENURefer to Sections 3.4 through 3.15 for detailed descriptions of Diagnostic Tests 1
through 12.  Function 88 sets the floppy disk drive and hard disk drive error retry
count. Function 99 exits the submenus of the Diagnostic Test and returns to the
Diagnostics Menu. 
						

							3  Tests and Diagnostics3.2  Executing the Diagnostic TestLibretto 50CT/70CT Maintenance Manual3-54. Select the option you want to execute and press Enter. The following message
displays:
SYSTEM TEST    XXXXXXXxxx DIAGNOSTIC TEST VX.XX
[Ctrl]+[Break] ; test end
[Ctrl]+[C];key stopSUB-TEST : XX
PASS COUNT: XXXXXERROR COUNT: XXXXX
WRITE DATA: XX  READ DATA : XX
ADDRESS : XXXXXXSTATUS  : XXX
SUB-TEST MENU :
01 - ROM checksum
02 -
03 -
04 - Fan ON/OFF
05 -
06 -
07 - DMI read
08 - DMI write
99 - Exit to DIAGNOSTIC TEST MENUNOTE: The menu displayed by your computer may be slightly different from theone shown above.5. Select the desired subtest number from the subtest menu and press Enter. The
following message displays:
TEST LOOP: YES
Error Stop: YES
Select YES for TEST LOOP to set the test to run continuously until it is halted by the
user. Select
 NO to return to the main menu after the test is complete.
Select YES for ERROR STOP to stop the test program when an error is found and
display the operation guide on the right side of the display screen as shown below:
ERROR STATUS NAME   [[ HALT OPERATION ]]
1: Test end
2: Continue
3: Retry