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Lenovo ThinkCentre M71z Hardware Maintenance Manual (HMM) for ThinkCentre M71z - Page 195

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Keyboard (ultraslim plus KB/MS- ) Ultraslim plus KB/MS- LA Spanish (without battery) • MT 1654: • MT 1664: • MT 1677: • MT 1738: • MT 1739: • MT 1938: Ultraslim plus KB/MS- Brazil/Portuguese (without battery) • MT 1654: • MT 1664: • MT 1677: • MT 1738: • MT 1739: • MT 1938: Ultraslim plus KB/MS- Nodic • MT 1654: • MT 1664: • MT 1677: • MT 1738: • MT 1739: • MT 1938: Ultraslim plus KB/MS- India • MT 1654: • MT 1664: • MT 1677: • MT 1738: • MT 1739: • MT 1938: Mice Lenovo enhanced optical USB mouse • MT 1654: CTO • MT 1664: CTO A1U A1F A3U A3F A3S A4U A4F A4S A5U A5F A5S A6U A6F A6S A7U A7F A7S A8U A8F A8S A9J • MT 1677: CTO C1B A6A A6T A7G A7A A7T A8A A8T A1U A1S A1D A1Y A2S A2D A2Y A3S A3D A3Y A4S A4D A4Y A5S A5D A5Y B6U B6F B3G B5G B7V D1J D2J D3J D4J D5G D6G D7G E1J E2J E3J E4J • MT 1738: CTO A1G • MT 1739: CTO A1G • MT 1938: CTO A1U A1F A1S A1P A1L A1D A1Y A1G A1M A1A A1Q A1T A1C A1B A1H A1V A1K A1R A1E A1J FRU # 03X8224 03X8206 0A34324 03X8239 FRU # 45J4889 CRU 1 1 1 1 CRU 1 Chapter 9. FRU lists 189

Section	Page
Chapter 1. About this manual	7
Important Safety Information	7
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	11
Grounding requirements	12
Safety notices (multi-lingual translations)	12
Chapter 3. General information	35
Lenovo ThinkVantage Tools	35
Lenovo Welcome	35
Lenovo ThinkVantage Toolbox	35
Lenovo Solution Center	35
SimpleTap	36
Additional information resources	36
Specifications	37
Chapter 4. General Checkout	39
Problem determination tips	39
Chapter 5. Troubleshooting and diagnostics	41
Basic troubleshooting	41
Troubleshooting procedure	42
Troubleshooting	43
Audio problems	43
CD problems	44
DVD problems	45
Intermittent problems	47
Keyboard, mouse, or pointing device problems	47
Monitor problems	49
Networking problems	50
Option problems	53
Performance and lockup problems	54
Printer problems	55
Serial port problems	55
Software problems	56
USB problems	57
Diagnostics	57
Lenovo ThinkVantage Toolbox	57
Lenovo Solution Center	58
PC-Doctor for DOS	58
Chapter 6. Using the Setup Utility program	63
Starting the Setup Utility program	63
Viewing and changing settings	63
Using passwords	63
Password considerations	64
Power-On Password	64
Hard Disk Password	64
Administrator Password	64
Setting, changing, and deleting a password	64
Enabling or disabling a device	65
Selecting a startup device	65
Selecting a temporary startup device	65
Selecting or changing the startup device sequence	65
Exiting the Setup Utility program	66
Chapter 7. Symptom-to-FRU Index	67
Hard disk drive boot error	67
Power Supply Problems	67
Diagnostic error codes	68
Beep symptoms	85
POST error codes	85
Miscellaneous error conditions	86
Undetermined problems	88
Chapter 8. Replacing FRUs	89
Locating connectors, controls, and indicators on the front of your computer	90
Locating connectors on the rear of your computer	91
FRU locations	92
System board parts and connectors	94
Removing and reinstalling the system stand hinge cover	94
Removing and reinstalling the system stand	96
Removing and reinstalling the frame stand	98
Removing the computer cover	100
Replacing the hard disk drive	100
Replacing the optical drive	103
Removing the VESA mount bracket	104
Replacing the rear I/O assembly	105
Removing and reinstalling the system board shield	107
Replacing the power supply	108
Replacing the microprocessor fan	109
Replacing the heat sink assembly	110
Replacing the microprocessor	112
Replacing the card reader	115
Opening the system board shield window	116
Replacing the battery	117
Replacing the inverter	118
Installing or replacing a memory module	119
Replacing the internal speakers	121
Replacing the integrated camera	122
Replacing the system board	123
Replacing the LCD panel	125
Replacing the WI-FI card	129
Completing the parts replacement	130
Chapter 9. FRU lists	133
Overall: MT 1654, 1664, 1677, 1738, 1739, and 1938	133
Mechanical FRUs	144
Keyboard and Mouse	147
Adapters and miscellaneous FRUs	196
Power Cords	196
Recovery discs	203
Windows 7 Starter 32 SP1 Recovery CD	203
Windows 7 Home Basic 32 SP1 Recovery CD	205
Windows 7 Home Premium 32 SP1 Recovery CD	207
Windows 7 Home Premium 64 SP1 Recovery CD	210
Windows 7 Professional 32 SP1 Recovery CD	211
Windows 7 Professional 64 SP1 Recovery CD	217
Windows 7 Ultimate 32 SP1 Recovery CD	222
Windows 7 Ultimate 64 SP1 Recovery CD	222
Windows XP Professional 32 Recovery CD	222
Overall: MT 1741, 1761, 1762, 1782, 1837, and 1962	224
Mechanical FRUs	237
Keyboard and Mouse	239
Adapters and miscellaneous FRUs	289
Power Cords	289
Recovery discs	296
Windows 7 Starter SP1 Recovery CD	296
Windows 7 Home Basic 32 SP1 Recovery CD	298
Windows 7 Home Premium 32 SP1 Recovery CD	300
Windows 7 Home Premium 64 SP1 Recovery CD	303
Windows 7 Professional 32 SP1 Recovery CD	304
Windows 7 Professional 64 SP1 Recovery CD	310
Chapter 10. Additional Service Information	317
Security features	317
Hardware controlled Passwords	317
Operating system password	317
Vital product data	317
BIOS levels	317
Flash update procedures	317
Updating (flashing) the BIOS from a disc	317
Updating (flashing) the BIOS from your operating system	318
Recovering from a POST/BIOS update failure	318
Power management	319
Automatic configuration and power interface (ACPI) BIOS	319
Automatic Power-On features	319
Appendix A. Notices	321
Television output notice	322
European conformance CE mark	322
Trademarks	322