ThinkPad 700, 700C, 720, 720C
(9552)
General Checkout . . . . . . . . . . . . . . . . . 68
Memory Checkout . . . . . . . . . . . . . . . 70
Power Systems Checkout ........... 71
Power Management Features ......... 81
Symptom-to-FRU Index . . . . . . . . . . . . . . 82
Numeric Error Codes .............. 82
Beep Symptoms . . . . . . . . . . . . . . . . 88
Miscellaneous Symptoms . . . . . . . . . . . 89
Undetermined Problem . . . . . . . . . . . . . 93
Related Service Procedures ............ 94
System Status Indicators ............ 94
Check Point (CP) Codes ............ 96
System Error Log ............... 96
Checking the Installed Devices List ....... 97
Power-On Password (700, 700C) ........ 97
Power-On Password (720, 720C) ........ 97
Privileged-Access Password (PAP) ....... 97
Set Startup Sequence ............. 98
Restore System Partition ............ 98
Hard Disk Low Level Format .......... 99
Replacing the Hard Disk Drive ......... 99
System Diskettes (Reference and Diagnostic) . 100
Making a System Partition Backup Copy . . . 101
Japanese Model Diskette Drive and Diskette . 102
173 and 11350 Error Combination ...... 102
PCMCIA Card Removal Tip ......... 102
Product Overview . . . . . . . . . . . . . . . . 102
FRU Removals and Replacements ........ 104
Locations . . . . . . . . . . . . . . . . . . . . 110
Front View . . . . . . . . . . . . . . . . . 110
System Board (700) ............. 111
System Board (720, 720C) .......... 112
Video Card . . . . . . . . . . . . . . . . . 113
Keyboard Control Card ............ 113
Voltage Converter . . . . . . . . . . . . . . 114
Parts Listing (700) ............... 115
Parts Listing (720, 720C) ............ 118
FRU Service Procedures ........... 124
ï›™ Copyright IBM Corp. 1995 67
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