Libretto 50CT/70CT Maintenance Manual
3-iii
Table of Contents
3.1
The Diagnostic Test
.....................................................................................................
3-1
3.2
Executing the Diagnostic Test
.....................................................................................
3-3
3.3
Subtest Names
.............................................................................................................
3-7
3.4
System Test
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3-9
3.5
Memory Test
.............................................................................................................
3-10
3.6
Keyboard Test
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3-12
3.7
Display Test
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3-14
3.8
Floppy Disk Test
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3-17
3.9
Printer Test
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3-20
3.10
Async Test
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3-22
3.11
Hard Disk Test
........................................................................................................
3-24
3.12
Real Timer Test
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3-27
3.13
NDP Test
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3-29
3.14
Expansion Test
........................................................................................................
3-30
3.15
Sound Test
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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
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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