ThinkPad 380, 385 (2635)
Read This First .................. 25
Checkout Guide   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 29
Memory Checkout   .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 30
System Board Checkout ............ 31
Keyboard/Auxiliary Input Device Checkout .... 31
TrackPoint III Checkout ............ 32
Diskette Drive Test .............. 32
Status Indicator Checkout ........... 33
Power Systems Checkout ........... 33
Common Device Checkout ........... 36
Power Management Features ......... 38
Symptom-to-FRU Index   .  .  .  .  .  .  .  .  .  .  .  .  .  . 40
Numeric Error Codes .............. 40
Diagnostic Error Codes ............ 43
Beep Symptoms   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 46
No Beep Symptoms .............. 46
LCD-Related Symptoms   .  .  .  .  .  .  .  .  .  .  .  . 47
Keyboard/TrackPoint III-Related Symptoms . . .  47
Indicator-Related Symptoms   .  .  .  .  .  .  .  .  .  . 48
Power-Related Symptoms   .  .  .  .  .  .  .  .  .  .  . 48
Function/Audio-Related Symptoms   .  .  .  .  .  .  . 49
Peripheral-Device-Related Symptoms   .  .  .  .  .  . 49
Infrared-Related Symptoms   .  .  .  .  .  .  .  .  .  .  . 50
Other Symptoms   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 50
Intermittent Problems   .  .  .  .  .  .  .  .  .  .  .  .  . 50
Undetermined Problems   .  .  .  .  .  .  .  .  .  .  .  . 51
Related Service Procedures ............ 52
Status Indicators   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 52
How to Run the Diagnostics .......... 54
Error Log   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 55
Checking the Installed Devices List ....... 55
How to Run a Low-Level Format ........ 55
PC Test Card LED ............... 56
Fn Key Combinations ............. 56
Product Overview  (380, 385)   .  .  .  .  .  .  .  .  .  .  . 57
FRU Removals and Replacements ......... 58
1010  Battery Pack   .  .  .  .  .  .  .  .  .  .  .  .  .  . 59
1020 DIMM Card / Backup Battery ....... 60
1030  Keyboard Unit   .  .  .  .  .  .  .  .  .  .  .  .  .  . 61
1040  CD-ROM/FDD Assembly   .  .  .  .  .  .  .  .  . 63
1045  FDD   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 65
1046  CD-ROM   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 68
1050 Speaker / Microphone .......... 70
1060 Hard Disk Drive ............. 72
1070  LCD Unit   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 77
1080 System Board Assembly ......... 81
1090 Upper Shield Case ........... 83
1100  Sub Card   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 84
1110 Lower Shield Case ........... 85
1120  PCMCIA Slot   .  .  .  .  .  .  .  .  .  .  .  .  .  . 87
1130  Fan   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 88
 Copyright IBM Corp. 1997    23