Portable Computer User Manual EquityTM LTTM-286

Diskette Problems
.............................................
B-5
Hard Disk Problems
..........................................
B-6
C Power-On Diagnostics
.......................................
C-1
System Device Check
.......................................
C-1
Clock and CMOS RAM Check
...........................
C-2
RAM Check
...................................................
C-2
Keyboard Controller and Keyboard Check
............... C-3
Video and Video Controller Check
........................
C-3
Diskette Drive Seek Check
.................................
C-4
Hard Disk Controller and Hard Disk Check
............ C-4
D Performing System Diagnostics
...........................
D-1
Starting System Diagnostics
.................................
D-1
Modifying the DEVICE LIST
..............................
D-2
Selecting a Test
................................................
D-4
Resuming From an Error
....................................
D-5
System Board Check
..........................................
D-6
Memory Check
................................................
D-6
Keyboard Check
.............................................
D-7
Monochrome Display Adapter and CRT Check
......... D-8
Monochrome Adapter Check
...........................
D-9
Attribute Check
..........................................
D-9
Character Set Check
....................................
D-9
Video Check
.............................................
D-10
Sync Check
................................................
D-10
Run All Above Checks
.................................
D-10
Color Graphics Adapter and CRT
........................
D-11
Color Graphics Adapter Check
........................ D-11
Attribute Check
..........................................
D-12
Character Set Check
....................................
D-12
40-Column Character Set Check
..................... D-13
320x200 Graphics Mode Check
........................
D-13
640x200 Graphics Mode Check
........................
D-14
Screen Paging Pheck
....................................
D-15
Color Video Check
.......................................
D-16
Sync Check
................................................
D-16
Run All Above Checks
.................................
D-17