Service Guide
1-9
1.4. Standard Test Features
The Extensa 67x Series Notebook Computers use modular design and built-in test features to
reduce the mean time to repair.
1.4.1 Power On Self Test
The Extensa line of notebook computers contain a BIOS-resident, Power On Self Test (POST) that
automatically performs a test of memory and all major circuits each time the computer is powered
up. In the event of a failure, the computer displays a descriptive error message and issues a series
of coded beeps (in case the display subsystem is not functioning). If self test completes normally,
the computer displays the amount of memory tested, loads the Operating System and Windows
environment.
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 ...
Page 114: ...A 22 Maintenance Data Figure A 19 Main Board Logic Diagrams Sheet 13 of 36 ...
Page 115: ...Service Guide A 23 Figure A 20 Main Board Logic Diagrams Sheet 14 of 36 ...
Page 116: ...A 24 Maintenance Data Figure A 21 Main Board Logic Diagrams Sheet 15 of 36 ...
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 ...
Page 120: ...A 28 Maintenance Data Figure A 25 Main Board Logic Diagrams Sheet 19 of 36 ...
Page 121: ...Service Guide A 29 Figure A 26 Main Board Logic Diagrams Sheet 20 of 36 ...
Page 122: ...A 30 Maintenance Data Figure A 27 Main Board Logic Diagrams Sheet 21 of 36 ...
Page 123: ...Service Guide A 31 Figure A 28 Main Board Logic Diagrams Sheet 22 of 36 ...
Page 124: ...A 32 Maintenance Data Figure A 29 Main Board Logic Diagrams Sheet 23 of 36 ...
Page 125: ...Service Guide A 33 Figure A 30 Main Board Logic Diagrams Sheet 24 of 36 ...
Page 126: ...A 34 Maintenance Data Figure A 31 Main Board Logic Diagrams Sheet 25 of 36 ...
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 ...
Page 132: ...A 40 Maintenance Data Figure A 37 Main Board Logic Diagrams Sheet 31 of 36 ...
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 ...
