C h a p t e r 5
C h a p t e r 5
Troubleshooting Procedures
Service Guide
5-1
5.1. Introduction
This chapter provides an overview of the fault isolation process, provides guidelines for isolating 67x
Series computer malfunctions to replaceable subassemblies and provides instructions for executing
diagnostics and interpreting error messages.
5.2. Overview of Fault Isolation Process
The fault isolation process (summarized in Figure 5-1) consists of the following steps:
•
Notebook power system (including battery packs and AC adapter connections)
•
Switch settings (ensure Power is On)
•
Press the Shift key to ensure that Notebook is not in Suspend mode
•
Verify if computer is configured to boot from the A: Drive or C: Drive.
•
Check LCD brightness adjustment (press Fn-Up Arrow keys to increase brightness)
•
Ensure that computer is not set for external monitor (press Fn-F12 to select internal screen)
•
Record and attempt to resolve any displayed error messages or error beeps (refer to
Paragraph 5.2.3.1 and Tables 5-1 and 5-2)
•
Try rebooting the system (Ctrl-Alt-Del)
•
If the computer is capable of running the Setup program; check the serial and parallel port
configurations, Sound System enable/disable, and other features that may affect system
operation.
•
Remove and replace suspect hardware (as described in Chapter 6 of this manual) and retest
the system.
Summary of Contents for Extensa 670
Page 46: ...Service Guide 4 7 Figure 4 2 M1521 Pin Assignments ...
Page 51: ...4 12 Theory of Operation Figure 4 6 M6377 Chip Pinouts ...
Page 56: ...Service Guide 4 17 Figure 4 10 TI1130 Chip PCI to CardBus 32 bit Pinouts ...
Page 102: ...A 10 Maintenance Data Figure A 7 Main Board Logic Diagrams Sheet 1 of 36 ...
Page 103: ...Service Guide A 11 Figure A 8 Main Board Logic Diagrams Sheet 2 of 36 ...
Page 104: ...A 12 Maintenance Data Figure A 9 Main Board Logic Diagrams Sheet 3 of 36 ...
Page 105: ...Service Guide A 13 Figure A 10 Main Board Logic Diagrams Sheet 4 of 36 ...
Page 106: ...A 14 Maintenance Data Figure A 11 Main Board Logic Diagrams Sheet 5 of 36 ...
Page 107: ...Service Guide A 15 Figure A 12 Main Board Logic Diagrams Sheet 6 of 36 ...
Page 108: ...A 16 Maintenance Data Figure A 13 Main Board Logic Diagrams Sheet 7 of 36 ...
Page 109: ...Service Guide A 17 Figure A 14 Main Board Logic Diagrams Sheet 8 of 36 ...
Page 110: ...A 18 Maintenance Data Figure A 15 Main Board Logic Diagrams Sheet 9 of 36 ...
Page 111: ...Service Guide A 19 Figure A 16 Main Board Logic Diagrams Sheet 10 of 36 ...
Page 112: ...A 20 Maintenance Data Figure A 17 Main Board Logic Diagrams Sheet 11 of 36 ...
Page 113: ...Service Guide A 21 Figure A 18 Main Board Logic Diagrams Sheet 12 of 36 ...
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Page 117: ...Service Guide A 25 Figure A 22 Main Board Logic Diagrams Sheet 16 of 36 ...
Page 118: ...A 26 Maintenance Data Figure A 23 Main Board Logic Diagrams Sheet 17 of 36 ...
Page 119: ...Service Guide A 27 Figure A 24 Main Board Logic Diagrams Sheet 18 of 36 ...
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Page 121: ...Service Guide A 29 Figure A 26 Main Board Logic Diagrams Sheet 20 of 36 ...
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Page 123: ...Service Guide A 31 Figure A 28 Main Board Logic Diagrams Sheet 22 of 36 ...
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Page 125: ...Service Guide A 33 Figure A 30 Main Board Logic Diagrams Sheet 24 of 36 ...
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Page 127: ...Service Guide A 35 Figure A 32 Main Board Logic Diagrams Sheet 26 of 36 ...
Page 128: ...A 36 Maintenance Data Figure A 33 Main Board Logic Diagrams Sheet 27 of 36 ...
Page 129: ...Service Guide A 37 Figure A 34 Main Board Logic Diagrams Sheet 28 of 36 ...
Page 130: ...A 38 Maintenance Data Figure A 35 Main Board Logic Diagrams Sheet 29 of 36 ...
Page 131: ...Service Guide A 39 Figure A 36 Main Board Logic Diagrams Sheet 30 of 36 ...
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Page 133: ...Service Guide A 41 Figure A 38 Main Board Logic Diagrams Sheet 32 of 36 ...
Page 134: ...A 42 Maintenance Data Figure A 39 Main Board Logic Diagrams Sheet 33 of 36 ...
Page 135: ...Service Guide A 43 Figure A 40 Main Board Logic Diagrams Sheet 34 of 36 ...
Page 136: ...A 44 Maintenance Data Figure A 41 Main Board Logic Diagrams Sheet 35 of 36 ...
Page 137: ...Service Guide A 45 Figure A 42 Main Board Logic Diagrams Sheet 36 of 36 ...
