Hardware Maintenance Manual (March 1999): ThinkPad 390E only
Page 35
...is being read from or written to be charged The battery pack is being charged. The numeric keypad on . For details, see the User's Reference. You enable or disable the keypad by pressing and holding the Shift key, and pressing the NumLk key. Symbol (1) Battery status Color Green Blinking orange Orange (2) ...computer status. The computer is on the keyboard is entering suspend mode. The battery pack needs to the hard disk drive, diskette drive, or data is being read from the CD-ROM drive. ThinkPad 390E 25 The following shows the location of each indicator symbol and the meaning of...
...is being read from or written to be charged The battery pack is being charged. The numeric keypad on . For details, see the User's Reference. You enable or disable the keypad by pressing and holding the Shift key, and pressing the NumLk key. Symbol (1) Battery status Color Green Blinking orange Orange (2) ...computer status. The computer is on the keyboard is entering suspend mode. The battery pack needs to the hard disk drive, diskette drive, or data is being read from the CD-ROM drive. ThinkPad 390E 25 The following shows the location of each indicator symbol and the meaning of...
Hardware Maintenance Manual (March 1999): ThinkPad 390E only
Page 43
...Voltage (V dc) 1 +15.5 to the appropriate power supply check listed below: "Checking the AC Adapter" "Checking the Operational Charging" on page 34 "Checking the Battery ASM" on page 34 Checking the AC Adapter: You are here because the computer fails only when the AC Adapter is not ... Adapter for correct continuity and installation. If you suspect a power problem, refer to +17.0 2 Ground If the voltage is supplied. 3. ThinkPad 390E 33 Remove the battery ASM. 2. Connect the AC Adapter and check that power is within the range, do the following: Replace the DC-DC & BATT board....
...Voltage (V dc) 1 +15.5 to the appropriate power supply check listed below: "Checking the AC Adapter" "Checking the Operational Charging" on page 34 "Checking the Battery ASM" on page 34 Checking the AC Adapter: You are here because the computer fails only when the AC Adapter is not ... Adapter for correct continuity and installation. If you suspect a power problem, refer to +17.0 2 Ground If the voltage is supplied. 3. ThinkPad 390E 33 Remove the battery ASM. 2. Connect the AC Adapter and check that power is within the range, do the following: Replace the DC-DC & BATT board....
Hardware Maintenance Manual (March 1999): ThinkPad 390E only
Page 44
... 34 ThinkPad 390E If the resistance is not correct, replace the Battery ASM. If the voltage is less than 10.6V (Li-Ion) or 9.6V (NiMH), measure the resistance between battery terminals 5 and 7. Power off the computer. 2. If the charge indicator ...Battery ASM. Do the following figure: Note: Signal lines, not used in the computer. If the voltage is still less than 50% of its capacity. Remove the Battery ASM and measure the voltage between the system and the battery. 3. The resistance must be 390 ohm (Li-Ion) or 4 to room temperature. Perform operational charging...
... 34 ThinkPad 390E If the resistance is not correct, replace the Battery ASM. If the voltage is less than 10.6V (Li-Ion) or 9.6V (NiMH), measure the resistance between battery terminals 5 and 7. Power off the computer. 2. If the charge indicator ...Battery ASM. Do the following figure: Note: Signal lines, not used in the computer. If the voltage is still less than 50% of its capacity. Remove the Battery ASM and measure the voltage between the system and the battery. 3. The resistance must be 390 ohm (Li-Ion) or 4 to room temperature. Perform operational charging...
Hardware Maintenance Manual (March 1999): ThinkPad 390E only
Page 55
... (PCMCIA)-Related Symptoms Symptom/Error FRU/Action in Sequence 1. System board In DOS or Windows multimedia programs, no sound comes from hibernation mode. 1. System board ThinkPad 390E 45 The system will not power on. Symptom/Error The system will not power off. Battery can't be charged. DC/DC & Charger board ASM 3. Speaker 2.
... (PCMCIA)-Related Symptoms Symptom/Error FRU/Action in Sequence 1. System board In DOS or Windows multimedia programs, no sound comes from hibernation mode. 1. System board ThinkPad 390E 45 The system will not power on. Symptom/Error The system will not power off. Battery can't be charged. DC/DC & Charger board ASM 3. Speaker 2.
Hardware Maintenance Manual (March 1999): ThinkPad 390E only
Page 56
...a recurring problem exists. FRU replacement should be caused by a variety of reasons that have nothing to do the following: 1. Remove Battery ASM and let it cool for the system board in Sequence System board System board Run printer self-test. When analyzing an intermittent ...cannot find a symptom or an error in BIOS Setup mode until power off, then charge battery). 3. If no error is detected, do not replace any FRUs. 46 ThinkPad 390E System board 1. Refresh battery (continue using battery in this list and the problem remains, see "Undetermined Problems" on page 47. System...
...a recurring problem exists. FRU replacement should be caused by a variety of reasons that have nothing to do the following: 1. Remove Battery ASM and let it cool for the system board in Sequence System board System board Run printer self-test. When analyzing an intermittent ...cannot find a symptom or an error in BIOS Setup mode until power off, then charge battery). 3. If no error is detected, do not replace any FRUs. 46 ThinkPad 390E System board 1. Refresh battery (continue using battery in this list and the problem remains, see "Undetermined Problems" on page 47. System...