The detailed block diagram, shown in Figure 4-2, is useful in performing
fault analysis of various internal subsystems. For example, a sound
hardware problem can be traced to either the PCMCIA/Sound Board, the
main board, or the interconnecting cabling software. A front panel LED
problem can be the LED Board, Main Board or interconnecting cabling
between the two. Other subsystem problems can be isolated in a similar
fashion using the detailed block diagram as a troubleshooting tool.
START
COMPUTER
TROUBLE
INDICATION
?
DEAD
COMPUTER
SYMTOMS
?
RUN
SELF TEST
ERROR
MESSAGE
?
MODEM
PROBLEM
?
RUN
DIAGNOSTICS
DIAGNOSTICS
ERROR MSG
?
NO
YES
NO
YES
SEE PARAGRAPH
4.2.4
NO
YES
SEE PARAGRAPH
4.2.3.1
NO
NO
WHEN POWER SWITCH
SET TO ON,, NO
INDICATION OF POWER;
SCREEN DARK, STATUS
LED's EXTINGUISHED
SET POWER SWITCH
TO ON. SELFTEST
AUTOMATICALLY RUNS
YES
See Paragraphs
4.2.1 and 4.2.2
See PC-Doctor
Reference Manual
Figure 4-1 Notebook Computer Troubleshooting
Flow Chart
4-2
Troubleshooting Procedures
Summary of Contents for TravelMate 5000 Series
Page 1: ...Maintenance Manual TravelMate 5000 Series Notebook Computers 9786166 0001 March 1995 ...
Page 47: ...Figure 1 16 TM5000 Series Functional Block Diagram 1 30 General Description ...
Page 95: ...Figure 4 2 Notebook Detailed Block Diagram Troubleshooting Procedures 4 3 ...
Page 149: ...Figure 6 4 Main Board P54 75MHz P N 9798803 0001 Sheet 2 of 2 6 14 Illustrated Parts Listing ...
Page 172: ...Figure 6 7 Keyscan Board P N 9786209 0001 Illustrated Parts Listing 6 37 ...
Page 180: ...Figure 6 11 Inverter Board P N 9786134 0001 Illustrated Parts Listing 6 45 ...
Page 185: ...Figure 6 12 DAB Board P N 9786273 0001 6 50 Illustrated Parts Listing ...
Page 228: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 1 of 2 7 42 Schematic Diagrams ...
Page 229: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 2 of 2 Schematic Diagrams 7 43 ...
Page 239: ...Figure A 1 Code Page 437 United States A 2 Character Sets ...
Page 240: ...Figure A 2 Code Page 850 Multilingual Character Sets A 3 ...
Page 241: ...Figure A 3 Code Page 863 Canadian French A 4 Character Sets ...
Page 242: ...Figure A 4 Code Page 865 Nordic Character Sets A 5 ...
Page 286: ...Printed in U S A ...