Lenovo ThinkPad 370 Hardware Maintenance Manual - Page 33

ThinkPad 340x (IBM 2610) General Checkout 25 Memory Checkout 26 System Board 27 Keyboard/Auxiliary Input Device Checkout . . . . 27 TrackPoint II and III Checkout 28 Diskette Drive Test 28 Power Systems Checkout 29 Power Management Features 33 Symptom-to-FRU Index 34 Numeric Error Codes 35 FRU Codes 37 Beep Symptoms 38 No Beep Symptoms 38 LCD Related Symptoms 39 Keyboard/TrackPoint II or III Related Symptoms . 40 Indicator Related Symptoms 40 Power Related Symptoms 40 Function/Audio Related Symptoms 41 Peripheral Device Related Symptoms 42 Other Symptoms 42 Intermittent Problems 42 Undetermined Problems 42 Related Service Procedures 43 Status Indicators 44 How to Run the Diagnostics 45 Error Log 45 Reset Pushbutton 46 Checking the Installed Devices List 46 How to Run the Low Level Format 46 PC Test Card LED 46 Fn Key Combinations 47 How To Run the Keyboard Diagnostics . . . . . 47 Product Overview 48 FRU Removals and Replacements 49 1010 Rear Connector Door 50 1020 Battery Pack 50 1030 Backup Battery 51 1040 IC DRAM Card 51 1050 Standby Battery 51 1060 Top Cover 52 1070 Indicator Card 53 1080 Keyboard Unit 54 1090 LCD Assembly 55 1100 Diskette Drive 57 1110 Hard Disk Drive 57 1120 System Board/Speaker 58 Locations 59 System (Front View 59 System (Rear View 60 System (Interior View 60 System Board 61 © Copyright IBM Corp. 1995 23