Hardware Maintenance Manual
Page 18
... you need to work area. Safety information 12 MT 0687 Important Use only approved tools and test equipment. Many customers have handles covered with the power-off controls, is near power supplies - If an electrical accident occurs, you work alone under hazardous conditions or near their equipment, rubber floor mats that...
... you need to work area. Safety information 12 MT 0687 Important Use only approved tools and test equipment. Many customers have handles covered with the power-off controls, is near power supplies - If an electrical accident occurs, you work alone under hazardous conditions or near their equipment, rubber floor mats that...
Hardware Maintenance Manual
Page 19
... are present, you must not be the type specified in good condition. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power off, and the power cord disconnected. Use a meter to get medical aid. Remove the cover. 5. Check for... for 0.1 ohm or less between the external ground pin and the frame ground. Check inside the unit for any non-Lenovo 3000 alterations. 6. Power supply units - c. Blowers and fans - b. Introduction 13 Safety information v Do not service the following checklist at the beginning of every...
... are present, you must not be the type specified in good condition. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power off, and the power cord disconnected. Use a meter to get medical aid. Remove the cover. 5. Check for... for 0.1 ohm or less between the external ground pin and the frame ground. Check inside the unit for any non-Lenovo 3000 alterations. 6. Power supply units - c. Blowers and fans - b. Introduction 13 Safety information v Do not service the following checklist at the beginning of every...
Hardware Maintenance Manual
Page 32
...below to display symptoms and solutions: v CHECK SYSTEM HEALTH v SYSTEM AND DEVICE TESTS v LENOVO TROUBLESHOOTING v CENTER v SYSTEM REPORTS v UPDATES AND SUPPORT Power system checkout To verify a symptom, do the following power supply checkouts: v "Checking the ac adapter" on page 27 v "Checking operational charging" ...on page 27 v "Checking the battery pack" on page 27 26 MT 0687 Check that the battery pack supplies power when you troubleshoot and resolve problems related to your computer. Remove the battery pack. 3. Turn off the computer. 2. Connect the...
...below to display symptoms and solutions: v CHECK SYSTEM HEALTH v SYSTEM AND DEVICE TESTS v LENOVO TROUBLESHOOTING v CENTER v SYSTEM REPORTS v UPDATES AND SUPPORT Power system checkout To verify a symptom, do the following power supply checkouts: v "Checking the ac adapter" on page 27 v "Checking operational charging" ...on page 27 v "Checking the battery pack" on page 27 26 MT 0687 Check that the battery pack supplies power when you troubleshoot and resolve problems related to your computer. Remove the battery pack. 3. Turn off the computer. 2. Connect the...
Hardware Maintenance Manual
Page 46
... or if the system simply is not operating, follow these procedures to verify that have nothing to the port replicator c. Verify that the power supply being used at a time until you find the failing FRU. 7. Turn on page 26.) 1. If no defects). Replace any FRUs.... 3. Verify that all of the following devices: a. Battery pack e. Non-Lenovo 3000 devices b. Symptom-to-FRU index Intermittent problems Intermittent system hang problems can be considered only when a problem recurs. Hard disk drive f. ...
... or if the system simply is not operating, follow these procedures to verify that have nothing to the port replicator c. Verify that the power supply being used at a time until you find the failing FRU. 7. Turn on page 26.) 1. If no defects). Replace any FRUs.... 3. Verify that all of the following devices: a. Battery pack e. Non-Lenovo 3000 devices b. Symptom-to-FRU index Intermittent problems Intermittent system hang problems can be considered only when a problem recurs. Hard disk drive f. ...