Lenovo ThinkPad 770 Hardware Maintenance Manual for 770 series notebooks(Janua - Page 5

Contents, General Descriptions, ThinkPad 770, 770E, 770X and 770Z - memory

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Contents General Descriptions 1 Introduction 1 Important Service Information 1 Drive and Diskette Compatibility Matrix . . . . . 3 Safety Notices (Multi-lingual Translations) . . . . 3 Safety Information 10 Laser Compliance Statement 14 Read This First 16 FRU Replacement Notices 19 LCD Replacement Notice 19 Screw Notices 19 System Board Replacement Notice 20 CPU Card Replacement Notice (600E and 770X Only 22 DC-DC Card Replacement Notice (600E and 770X Only 22 Related Service Information 23 How to Use Error Messages 23 How to Diagnose Multiple FRUs 23 Reset Switch 23 Running a Low-Level Format 23 Service Web Site 24 Passwords 24 Power Management Features 25 Fn Key Combinations 29 Checkout Guide 30 Audio Checkout 31 Diskette Drive Checkout 31 Fan Checkout 32 Indicator LED Checkout 32 Indicator Panel Checkout 32 Keyboard or Auxiliary Input Device Checkout . . 32 Memory Checkout 33 Modem (DSP) Checkout 35 Port Replicator Checkout 35 Power Systems Checkout 36 System Board and CPU Card Checkout . . . . . 39 TrackPoint Checkout 39 Running the Diagnostics 40 PC Card Slots Test 41 Universal Serial Bus (USB) Test 41 Displaying the Error Log 42 Checking the Installed Devices List 43 Diagnostic Error Codes 43 ThinkPad 770, 770E, 770X and 770Z 47 Model-Unique Functions 49 Product Overview 49 Status Indicators 51 Symptom-to-FRU Index 52 Numeric Error Codes 52 © Copyright IBM Corp. 1999 v

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Contents
General Descriptions
. . . . . . . . . . . . . .
1
Introduction . . . . . . . . . . . . . . . . . . . .
1
Important Service Information
..........
1
Drive and Diskette Compatibility Matrix
.....
3
Safety Notices (Multi-lingual Translations)
....
3
Safety Information . . . . . . . . . . . . . . .
10
Laser Compliance Statement
...........
14
Read This First
..................
16
FRU Replacement Notices
............
19
LCD Replacement Notice
...........
19
Screw Notices . . . . . . . . . . . . . . . . .
19
System Board Replacement Notice
.......
20
CPU Card Replacement Notice (600E and 770X
Only)
. . . . . . . . . . . . . . . . . . . .
22
DC-DC Card Replacement Notice (600E and 770X
Only)
. . . . . . . . . . . . . . . . . . . .
22
Related Service Information
............
23
How to Use Error Messages
..........
23
How to Diagnose Multiple FRUs
........
23
Reset Switch
. . . . . . . . . . . . . . . . .
23
Running a Low-Level Format
..........
23
Service Web Site
...............
24
Passwords
. . . . . . . . . . . . . . . . . .
24
Power Management Features
.........
25
Fn Key Combinations
.............
29
Checkout Guide
. . . . . . . . . . . . . . . . .
30
Audio Checkout
. . . . . . . . . . . . . . . .
31
Diskette Drive Checkout
............
31
Fan Checkout . . . . . . . . . . . . . . . . .
32
Indicator LED Checkout
............
32
Indicator Panel Checkout
............
32
Keyboard or Auxiliary Input Device Checkout
.
.
32
Memory Checkout . . . . . . . . . . . . . . .
33
Modem (DSP) Checkout
............
35
Port Replicator Checkout
............
35
Power Systems Checkout
...........
36
System Board and CPU Card Checkout
.....
39
TrackPoint Checkout . . . . . . . . . . . . . .
39
Running the Diagnostics
..............
40
PC Card Slots Test
..............
41
Universal Serial Bus (USB) Test
........
41
Displaying the Error Log
............
42
Checking the Installed Devices List
.......
43
Diagnostic Error Codes
............
43
ThinkPad 770, 770E, 770X and 770Z
.......
47
Model-Unique Functions . . . . . . . . . . . . . .
49
Product Overview
. . . . . . . . . . . . . . .
49
Status Indicators . . . . . . . . . . . . . . . .
51
Symptom-to-FRU Index
. . . . . . . . . . . . . .
52
Numeric Error Codes
..............
52
Copyright IBM Corp. 1999
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