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Lenovo ThinkPad E50 Notebook
Manufacturer:
Model:
ThinkPad E50
Date:
2012
Class:
Type:
SubType:
Service Manual
Manual type:
Service Manual
Pages:
158
Size:
13.15 Mbytes (13790932 Bytes)
Language:
english
Revision:
Fifth Edition
Manual-ID:
75Y4302_04
Date:
April 2012
Quality:
Electronic document, no scan, very well readable.
Upload date:
28 April 2013
MD5:
9667e065ef1c37352859f9f0531a2e6a
Downloads:
831
Information
About this manual This manual contains service and reference information for the following ThinkPad® Notebook products. ThinkPad Edge 14" and E40 Machine types (MT) 0199, 0578, and 0579 ThinkPad Edge 15" and E50 MT 0301, 0302, and 0319 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkPad product, be sure to read all the information underChapter 1 “Safety information” on page 1 and Chapter 2 “Important service information” on page 23. Contents About this manual ... iii Chapter 1. Safety information ... 1 General safety ... 1 Electrical safety ... 2 Safety inspection guide ... 3 Handling devices that are sensitive to electrostatic discharge ... 3 Grounding requirements ... 4 Safety notices (multilingual translations) ... 4 Laser compliance statement (multilingual translations) ... 17 Chapter 2. Important service information ... 23 Strategy for replacing FRUs ... 24 Important notice for replacing a system board ... 24 How to use error message ... 24 Strategy for replacing FRUs for CTO, CMV, and GAV ... 24 Product definition ... 24 FRU identification for CTO, CMV, and GAV products ... 25 Chapter 3. General checkout ... 27 What to do first ... 27 Checkout guide ... 28 Diagnostics using PC-Doctor for DOS ... 28 Lenovo ThinkVantage Toolbox (Lenovo System Toolbox) ... 31 PC-Doctor for Rescue and Recovery ... 31 Lenovo Solution Center ... 31 FRU tests ... 34 Power system checkout ... 35 Checking the ac adapter ... 35 Checking operational charging ... 35 Checking the battery pack ... 36 Checking the backup battery ... 36 Chapter 4. Related service information ... 39 Restoring the factory contents by using Recovery Disc Set ... 39 Passwords ... 40 Power-on password ... 40 Hard-disk password ... 40 Supervisor password ... 41 Power management ... 42 Screen blank mode ... 42 Sleep mode ... 42 Hibernation mode ... 42 Symptom-to-FRU index ... 43 Numeric error codes ... 43 Error messages ... 45 No-beep symptoms ... 46 LCD-related symptoms ... 46 Intermittent problems ... 46 Undetermined problems ... 47 Chapter 5. Status indicators ... 49 Chapter 6. Special keys and Fn key combination ... 51 Chapter 7. FRU replacement notices ... 53 Screw notices ... 53 Retaining serial numbers ... 54 Restoring the serial number of the system unit ... 54 Retaining the UUID ... 55 Chapter 8. Removing or replacing a FRU ... 57 1010 Battery pack ... 58 1020 Optical drive or travel cover ... 58 1030 Thermal cover ... 59 1040 Hard disk drive (HDD) assembly ... 60 1050 DIMM ... 61 1060 Fan assembly ... 63 1070 CPU ... 66 1080 Wireless WAN slot cover and PCI Express Mini Card for wireless WAN ... 67 1090 Palm rest assembly with cables ... 69 1100 PCI Express Mini Card for wireless LAN . . 72 1110 Backup battery ... 74 1120 Bluetooth daughter card (BDC-2) ... 75 1130 Keyboard ... 75 1140 Keyboard bezel ... 78 1150 LCD unit ... 80 1160 Top shielding assembly ... 83 1170 System board assembly ... 85 1180 USB connector board and USB cable assembly ... 88 1190 DC-in cable and base cover ... 90 2010 LCD front bezel ... 94 2020 Speaker assembly ... 95 2030 Integrated camera ... 96 2040 Hinges, LCD panel, LCD cable, and LCD rear cover assembly ... 96 2050 Antenna assembly ... 99 Chapter 9. Locations ... 101 Front view ... 101 Rear view ... 102 Bottom view ... 103 Chapter 10. Parts list ... 105 Overall ... 106 LCD FRUs ... 123 Keyboard ... 138 Miscellaneous parts ... 140 AC adapters ... 140 Power cords ... 141 Recovery discs ... 142 Windows 7 Home Basic (32 bit) DVDs ... 142 Windows 7 Home Premium (32 bit) DVDs . . 142 Windows 7 Home Premium (64 bit) DVDs . . 143 Windows 7 Professional (32 bit) DVDs ... 144 Windows 7 Professional (64 bit) DVDs ... 145 Common service tools ... 147 Appendix A. Notices ... 149 Trademarks ... 150

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