Lenovo NetVista A22 Hardware Maintenance Manual (HMM) for NetVista 2254, 2256, - Page 79
Power Supply Errors, Check/Verify, FRU/Action
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Power Supply Errors If the power-on indicator is not on, the power supply fan is not running, or the computer will not power-off, use the following procedures. Check/Verify Check the following for proper installation. v Power Cord v On/Off Switch connector v On/Off Switch Power Supply connector v System Board Power Supply connectors v Microprocessor(s) connection Check the power-on switch for continuity. Check the power-on switch for continuity. FRU/Action Reseat Power Cord Power-on Switch Chapter 6. Symptom-to-FRU Index 71
Power Supply Errors
If the power-on indicator is not on, the power supply fan is not running, or the
computer will not power-off, use the following procedures.
Check/Verify
FRU/Action
Check the following for proper installation.
v
Power Cord
v
On/Off Switch connector
v
On/Off Switch Power Supply connector
v
System Board Power Supply connectors
v
Microprocessor(s) connection
Reseat
Check the power-on switch for continuity.
Power Cord
Check the power-on switch for continuity.
Power-on Switch
Chapter 6. Symptom-to-FRU Index
71