Lenovo ThinkPad 365E-ED ThinkPad 365, SelectaDock I - Hardware Maintenance Man - Page 205

FDD-1 represents the built-in diskette drive. FDD-2 represents the external diskette drive attached through the port replicator. Warning: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or can cause the drive to fail. Do the following to select the test device: 1. Go to the advanced diagnostic mode by pressing Ctrl+A from the diagnostic menu. 2. Select FDD-1 or FDD-2 to run the diskette drive test. 3. Type Y (Yes) to the question on the screen. 4. Insert the blank diskette when instructed. 5. If the controller test detects an error, FRU code 10 appears. Replace the system board. 6. If the controller test runs without errors, the drive read/write tests start automatically. 7. If the drive test detects an error, FRU code 50 for FDD-1; or 51 for FDD-2 appears. If the diskette itself is known to be good, replace the drive. Status Indicator Checkout If an LED problem occurs, do the following: 1. Power off the computer. 2. Power on the computer. 3. All the LEDs in the indicator panel should turn on for a moment soon after the computer is powered-on. Make sure that all LEDs turn on. If the problems remains, replace the following cards one at a time: Subcard System board Power Systems Checkout To verify the symptom of the problem, power on the computer using each of the power sources as follows. 1. Remove the battery pack and diskette drive. 2. Connect the AC Adapter and check that power is supplied. 3. Disconnect the AC Adapter and install the charged battery pack; then check that power is supplied by the battery pack. If you suspect a power problem, see the appropriate power supply check listed below. "Checking the AC Adapter" on page 194. "Checking Operational Charging" on page 194. "Checking the Battery Pack" on page 195. "Checking the Backup Battery" on page 195. ThinkPad 380, 380D, 385, 385D (2635) 193