Hardware Maintenance Manual for ThinkCentre A70z
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... 79 Installing a memory module 80 Replacing the microprocessor fan assembly . . . 81 Removing the microprocessor fan assembly . 81 Installing a microprocessor fan assembly . . 83 Replacing the microprocessor and heat sink assembly 85 Removing the microprocessor and heat sink assembly 85 Installing the microprocessor and heat sink assembly 87 iii General information . . . . 29 Lenovo ThinkVantage Tools 29 ThinkVantage Productivity...
... 79 Installing a memory module 80 Replacing the microprocessor fan assembly . . . 81 Removing the microprocessor fan assembly . 81 Installing a microprocessor fan assembly . . 83 Replacing the microprocessor and heat sink assembly 85 Removing the microprocessor and heat sink assembly 85 Installing the microprocessor and heat sink assembly 87 iii General information . . . . 29 Lenovo ThinkVantage Tools 29 ThinkVantage Productivity...
Hardware Maintenance Manual for ThinkCentre A70z
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Notices 183 Television output notice 184 Trademarks 184 Index 185 iv ThinkCentre Hardware Maintenance Manual Additional Service Information 179 Security features 179 Hardware controlled Passwords 179 Operating system password 179 Vital... . . . . . 94 Installing an integrated webcam 95 Replacing the inverter 97 Removing the inverter 97 Installing an inverter 98 Replacing the battery 99 Removing the battery 99 Installing a battery 100 Replacing the system fan 100 Removing the system fan 100 Installing a system fan 101 Replacing the power supply assembly . . . . . 101 Removing ...
Notices 183 Television output notice 184 Trademarks 184 Index 185 iv ThinkCentre Hardware Maintenance Manual Additional Service Information 179 Security features 179 Hardware controlled Passwords 179 Operating system password 179 Vital... . . . . . 94 Installing an integrated webcam 95 Replacing the inverter 97 Removing the inverter 97 Installing an inverter 98 Replacing the battery 99 Removing the battery 99 Installing a battery 100 Replacing the system fan 100 Removing the system fan 100 Installing a system fan 101 Replacing the power supply assembly . . . . . 101 Removing ...
Hardware Maintenance Manual for ThinkCentre A70z
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... care when measuring high voltages. • Regularly inspect and maintain your back. Blowers and fans - Some hand tools have , near their normal operating places in the off position. •...work area. Remember: There must be a complete circuit to get medical aid. 4 ThinkCentre Hardware Maintenance Manual By observing the above rule, you from their equipment, rubber floor ... to switch off (EPO) switch, disconnecting switch, or electrical outlet. Removing or installing Field Replaceable Units (FRUs) • Before you can cause personal injury and machine damage. • Do...
... care when measuring high voltages. • Regularly inspect and maintain your back. Blowers and fans - Some hand tools have , near their normal operating places in the off position. •...work area. Remember: There must be a complete circuit to get medical aid. 4 ThinkCentre Hardware Maintenance Manual By observing the above rule, you from their equipment, rubber floor ... to switch off (EPO) switch, disconnecting switch, or electrical outlet. Removing or installing Field Replaceable Units (FRUs) • Before you can cause personal injury and machine damage. • Do...
Hardware Maintenance Manual for ThinkCentre A70z
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Replace component under function test 1. Check Power supply voltages 3. System board No action 1. Cache, if removable 2. Diskette Drive Cable 2. Check power supply voltages 3. System board 58 ThinkCentre Hardware Maintenance Manual Diagnostic Error Code 175-199-XXX Thermal Sensor(s) test failed, cause unknown 175-250-XXX 175-... 1. Check power supply voltages 3. Reseat the hard disk drive cable 4. Microprocessor 4. System board 1. Hard Disk Drive Cable 2. Flash system 2. Check fans 2. Diskette drive 4. CD-ROM drive 4. System board No action 1. C2 Cover Switch 3.
Replace component under function test 1. Check Power supply voltages 3. System board No action 1. Cache, if removable 2. Diskette Drive Cable 2. Check power supply voltages 3. System board 58 ThinkCentre Hardware Maintenance Manual Diagnostic Error Code 175-199-XXX Thermal Sensor(s) test failed, cause unknown 175-250-XXX 175-... 1. Check power supply voltages 3. Reseat the hard disk drive cable 4. Microprocessor 4. System board 1. Hard Disk Drive Cable 2. Flash system 2. Check fans 2. Diskette drive 4. CD-ROM drive 4. System board No action 1. C2 Cover Switch 3.
Hardware Maintenance Manual for ThinkCentre A70z
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Replacing FRUs 67 5 Microprocessor fan assembly 6 Hard disk drive 7 Optical drive 8 Internal speaker 13 System board 14 System fan 15 Inverter Major components of the computer The following illustration shows the major components of the computer. Chapter 8.
Replacing FRUs 67 5 Microprocessor fan assembly 6 Hard disk drive 7 Optical drive 8 Internal speaker 13 System board 14 System fan 15 Inverter Major components of the computer The following illustration shows the major components of the computer. Chapter 8.
Hardware Maintenance Manual for ThinkCentre A70z
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... sides of the ThinkCentre Safety and Warranty Guide, go to replace the microprocessor fan assembly. Remove the computer cover. Disconnect the microprocessor fan assembly cables from your computer. Replacing FRUs 81 Open the...lenovo.com/support This section provides instructions on page 108. Turn off the computer. 2. Chapter 8. Remove the heat sink assembly to gain access to the main bracket. 7. Replacing the microprocessor fan assembly Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre...
... sides of the ThinkCentre Safety and Warranty Guide, go to replace the microprocessor fan assembly. Remove the computer cover. Disconnect the microprocessor fan assembly cables from your computer. Replacing FRUs 81 Open the...lenovo.com/support This section provides instructions on page 108. Turn off the computer. 2. Chapter 8. Remove the heat sink assembly to gain access to the main bracket. 7. Replacing the microprocessor fan assembly Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre...
Hardware Maintenance Manual for ThinkCentre A70z
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...out the microprocessor fan assembly cable connectors through the hole in the main bracket. 13. Lift the microprocessor fan assembly and cables up so that attach the new microprocessor fan assembly to the system board connectors. Connect the microprocessor fan assembly cables to... the main bracket. 2. Reinstall the four screws that you can route the microprocessor fan assembly cables through the hole in the main bracket. Lift the main bracket up and out of the main bracket. Replacing...
...out the microprocessor fan assembly cable connectors through the hole in the main bracket. 13. Lift the microprocessor fan assembly and cables up so that attach the new microprocessor fan assembly to the system board connectors. Connect the microprocessor fan assembly cables to... the main bracket. 2. Reinstall the four screws that you can route the microprocessor fan assembly cables through the hole in the main bracket. Lift the main bracket up and out of the main bracket. Replacing...
Hardware Maintenance Manual for ThinkCentre A70z
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... modules. See "Removing the memory module" on the system board. Disconnect the integrated webcam cable from the computer. Remove the microprocessor fan assembly. Locate the integrated webcam connector on page 79. 13. Installing an integrated webcam To install an integrated webcam, do the following... See "System board connectors" on page 81. 12. Note the routing of the integrated webcam cable connection. See "Removing the microprocessor fan assembly" on page 68. 16. Press the integrated webcam-locking tabs 2 inward to the front bezel. 15. 10. Remove the microprocessor...
... modules. See "Removing the memory module" on the system board. Disconnect the integrated webcam cable from the computer. Remove the microprocessor fan assembly. Locate the integrated webcam connector on page 79. 13. Installing an integrated webcam To install an integrated webcam, do the following... See "System board connectors" on page 81. 12. Note the routing of the integrated webcam cable connection. See "Removing the microprocessor fan assembly" on page 68. 16. Press the integrated webcam-locking tabs 2 inward to the front bezel. 15. 10. Remove the microprocessor...
Hardware Maintenance Manual for ThinkCentre A70z
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... off the computer. 2. See "Removing the rear I /O assembly. Replacing the system fan Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that the screen is against the surface and the... from your computer. Hold the sides of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on the desk or surface. Remove the computer cover. Go to replace the system fan. To obtain a copy of your computer and ...
... off the computer. 2. See "Removing the rear I /O assembly. Replacing the system fan Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that the screen is against the surface and the... from your computer. Hold the sides of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on the desk or surface. Remove the computer cover. Go to replace the system fan. To obtain a copy of your computer and ...
Hardware Maintenance Manual for ThinkCentre A70z
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... the rear I /O shielding" on a power supply or any part that secure the system fan to the system board shielding. 9. Lift the system fan and system fan cable away from the computer. See "Opening the system board shielding" on page 98. 7. Replacing the power supply assembly Attention Never remove the cover on page 74. 9. Remove...
... the rear I /O shielding" on a power supply or any part that secure the system fan to the system board shielding. 9. Lift the system fan and system fan cable away from the computer. See "Opening the system board shielding" on page 98. 7. Replacing the power supply assembly Attention Never remove the cover on page 74. 9. Remove...
Hardware Maintenance Manual for ThinkCentre A70z
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...fan assembly" on page 85. 11. Remove the system board. As you remove each FRU, set it . Turn off the computer. 2. Hold the sides of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to the front bezel. 106 ThinkCentre Hardware Maintenance Manual See "Replacing... panel, other FRUs have to be removed. Replacing the LCD panel Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that the screen is...
...fan assembly" on page 85. 11. Remove the system board. As you remove each FRU, set it . Turn off the computer. 2. Hold the sides of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to the front bezel. 106 ThinkCentre Hardware Maintenance Manual See "Replacing... panel, other FRUs have to be removed. Replacing the LCD panel Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that the screen is...