4.2
Troubleshooting Procedures
The built-in self test program and the disk resident diagnostics program
(PC-Doctor) are useful tools in computer troubleshooting. However, if the
computer has a power, keyboard or display problem, you first solve this
problem before running diagnostics. If the computer powers up and displays
messages on the LCD or emits a series of beeps, skip to Paragraph 4.2.3 for
further instructions.
4.2.1
Troubleshooting a Power Supply
Problem
If the computer does not power up when the Power Switch is set to the ON
position, you most likely have a malfunction in the power subsystem (loss of
power at the AC Outlet, faulty AC Adapter, discharged Battery Packs, or
faulty Power Supply on the Main Board). With a power problem, all LEDs
are extinguished, the LCD screen is blank, the system does not respond
when the suspend switch several times consecutively and no drive activity
can be heard. The computer is unable to load software and displays no
visible signs of activity.
To fault isolate a power problem, check the following:
•
AC Adapter and Battery- Plug in the AC adapter and double check all
connections on the Adapter and computer. Ensure that the Notebook
Power
switch is set to the On position and that the system is not in
Suspend or sleep mode.
•
Measure the voltage at the AC Outlet or plug in a known good appliance
(EG. a lamp) to verify that voltage is present. If the voltage is O.K., try
replacing the AC Adapter.
•
Check to see that the battery packs are installed correctly and that the
battery charge indicators on the front of the battery packs indicate the
batteries are charged (try using a new battery pack if batteries are
discharged).
•
If the AC outlet voltage, AC Adapter, and battery packs test normal but
the computer will not power up, replace the Main Board as described in
Section 5.
4.2.2
Troubleshooting a Display Problem
If the LCD remains blank when you turn on the computer, and the status
indicators light, check the following controls on the display (See Figure 3-1):
•
Brightness - Adjust the Brightness control to a higher setting.
•
LCD suspend mode - If the LCD backlight remains off, even with the
Brightness Control set to its highest position, the LCD may be in the
Suspend Mode
. In Suspend Mode, the power/suspend indicator glows
amber. Press any key to power up the system.
4-4
Troubleshooting Procedures
Содержание TravelMate 5000 Series
Страница 1: ...Maintenance Manual TravelMate 5000 Series Notebook Computers 9786166 0001 March 1995 ...
Страница 47: ...Figure 1 16 TM5000 Series Functional Block Diagram 1 30 General Description ...
Страница 95: ...Figure 4 2 Notebook Detailed Block Diagram Troubleshooting Procedures 4 3 ...
Страница 149: ...Figure 6 4 Main Board P54 75MHz P N 9798803 0001 Sheet 2 of 2 6 14 Illustrated Parts Listing ...
Страница 161: ...Figure 6 5 Figure 6 5 PCMCIA Sound Board P N 9786205 0001 Sheet 1 of 2 6 26 Illustrated Parts Listing ...
Страница 162: ...Figure 6 6 Figure 6 5 PCMCIA Sound Board P N 9786205 0001 Sheet 2 of 2 Illustrated Parts Listing 6 27 ...
Страница 172: ...Figure 6 7 Keyscan Board P N 9786209 0001 Illustrated Parts Listing 6 37 ...
Страница 180: ...Figure 6 11 Inverter Board P N 9786134 0001 Illustrated Parts Listing 6 45 ...
Страница 185: ...Figure 6 12 DAB Board P N 9786273 0001 6 50 Illustrated Parts Listing ...
Страница 188: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 1 of 22 7 2 Schematic Diagrams ...
Страница 189: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 2 of 22 Schematic Diagrams 7 3 ...
Страница 190: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 3 of 22 7 4 Schematic Diagrams ...
Страница 191: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 4 of 22 Schematic Diagrams 7 5 ...
Страница 192: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 5 of 22 7 6 Schematic Diagrams ...
Страница 193: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 6 of 22 Schematic Diagrams 7 7 ...
Страница 194: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 7 of 22 7 8 Schematic Diagrams ...
Страница 195: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 8 of 22 Schematic Diagrams 7 9 ...
Страница 196: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 9 of 22 7 10 Schematic Diagrams ...
Страница 197: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 10 of 22 Schematic Diagrams 7 11 ...
Страница 198: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 11 of 22 7 12 Schematic Diagrams ...
Страница 199: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 12 of 22 Schematic Diagrams 7 13 ...
Страница 200: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 13 of 22 7 14 Schematic Diagrams ...
Страница 201: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 14 of 22 Schematic Diagrams 7 15 ...
Страница 202: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 15 of 22 7 16 Schematic Diagrams ...
Страница 203: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 16 of 22 Schematic Diagrams 7 17 ...
Страница 204: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 17 of 22 7 18 Schematic Diagrams ...
Страница 205: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 18 of 22 Schematic Diagrams 7 19 ...
Страница 206: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 19 of 22 7 20 Schematic Diagrams ...
Страница 207: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 20 of 22 Schematic Diagrams 7 21 ...
Страница 208: ...Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 21 of 22 7 22 Schematic Diagrams ...
Страница 209: ...To Be Supplied Figure 7 1 Figure 7 1 Main Board Part No 9798803 Logic Diagram Sheet 22 of 22 Schematic Diagrams 7 23 ...
Страница 210: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 1 of 12 7 24 Schematic Diagrams ...
Страница 211: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 2 of 12 Schematic Diagrams 7 25 ...
Страница 212: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 3 of 12 7 26 Schematic Diagrams ...
Страница 213: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 4 of 12 Schematic Diagrams 7 27 ...
Страница 214: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 5 of 12 7 28 Schematic Diagrams ...
Страница 215: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 6 of 12 Schematic Diagrams 7 29 ...
Страница 216: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 7 of 12 7 30 Schematic Diagrams ...
Страница 217: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 8 of 12 Schematic Diagrams 7 31 ...
Страница 218: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 9 of 12 7 32 Schematic Diagrams ...
Страница 219: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 10 of 12 Schematic Diagrams 7 33 ...
Страница 220: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 11 of 12 7 34 Schematic Diagrams ...
Страница 221: ...Figure 7 2 Figure 7 2 PCMCIA Sound Board P N 9786205 Logic Diagram Sheet 12 of 12 Schematic Diagrams 7 35 ...
Страница 222: ...Figure 7 3 Figure 7 3 Keyscan Board P N 9786209 Logic Diagram Sheet 1 of 5 7 36 Schematic Diagrams ...
Страница 223: ...Figure 7 3 Figure 7 3 Keyscan Board P N 9786209 Logic Diagram Sheet 2 of 5 Schematic Diagrams 7 37 ...
Страница 224: ...Figure 7 3 Figure 7 3 Keyscan Board P N 9786209 Logic Diagram Sheet 3 of 5 7 38 Schematic Diagrams ...
Страница 225: ...Figure 7 3 Figure 7 3 Keyscan Board P N 9786209 Logic Diagram Sheet 4 of 5 Schematic Diagrams 7 39 ...
Страница 226: ...Figure 7 3 Figure 7 3 Keyscan Board P N 9786209 Logic Diagram Sheet 5 of 5 7 40 Schematic Diagrams ...
Страница 227: ...Figure 7 4 Figure 7 4 Sleep Switch Board P N 9786148 Logic Diagram Sheet 1 of 1 Schematic Diagrams 7 41 ...
Страница 228: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 1 of 2 7 42 Schematic Diagrams ...
Страница 229: ...Figure 7 5 Figure 7 5 IR Board P N 9798813 Logic Diagram Sheet 2 of 2 Schematic Diagrams 7 43 ...
Страница 230: ...Figure 7 6 Figure 7 6 LED Board P N 9796128 Logic Diagram Sheet 1 of 2 7 44 Schematic Diagrams ...
Страница 231: ...Figure 7 6 Figure 7 6 LED Board P N 9796128 Logic Diagram Sheet 2 of 2 Schematic Diagrams 7 45 ...
Страница 232: ...Figure 7 7 Figure 7 7 8 16 MB RAM Exp Board P N 9798816 Logic Diagram Sheet 1 of 1 7 46 Schematic Diagrams ...
Страница 233: ...Figure 7 8 Figure 7 8 Inverter Board P N 9796134 Logic Diagram Sheet 1 of 2 Schematic Diagrams 7 47 ...
Страница 234: ...Figure 7 8 Figure 7 8 Inverter Board P N 9796134 Logic Diagram Sheet 2 of 2 7 48 Schematic Diagrams ...
Страница 235: ...Figure 7 8 Figure 7 9 Display Adapter Board P N 9786273 Logic Diagram Sheet 1 of 3 Schematic Diagrams 7 49 ...
Страница 236: ...Figure 7 9 Figure 7 9 Display Adapter Board P N 9786273 Logic Diagram Sheet 2 of 3 7 50 Schematic Diagrams ...
Страница 237: ...Figure 7 9 Figure 7 9 Display Adapter Board P N 9786273 Logic Diagram Sheet 3 of 3 Schematic Diagrams 7 51 ...
Страница 239: ...Figure A 1 Code Page 437 United States A 2 Character Sets ...
Страница 240: ...Figure A 2 Code Page 850 Multilingual Character Sets A 3 ...
Страница 241: ...Figure A 3 Code Page 863 Canadian French A 4 Character Sets ...
Страница 242: ...Figure A 4 Code Page 865 Nordic Character Sets A 5 ...
Страница 286: ...Printed in U S A ...