IBM 6500-V15 Maintenance Manual - Page 76

Display Messages Operator Panel Message 083 INTAKE FAN CHECK * SEE USERS MANUAL (continued) 084 POWER 48V CHECK * SEE USERS MANUAL Table 3. Message List Explanation Corrective Action 48 Volt Power Failed. Internal power failure. NOTE: Before going to the customer account, obtain a power supply, a PSA3 controller board, and hammer bank power and logic cables for the printer model you will be working on. If the customer account is a long distance away, also obtain a shutlle assembly. You will return for credit any component that is not used. 13. Power on the printer in download mode and load flash memory (page 238). If you encounter the failure after replacing the controller board, reinstall the original controller board and contact your DDS and Second Level Support. 1. Run a print test. If the message appears, do the power supply operational check (page 258). If the power supply fails the check, replace it. If it passes the check, continue with this procedure but skip the steps concerning the power supply. 2. If the printer is operational, print the Error Log. Check the error log for 065 HAMMER BANK FAN FAULT or other errors that occurred before the 084 error. Investigate these errors as appropriate, because they may be the cause of the 084 error. 3. Power off and unplug the printer. Remove the paper guide assembly or pedestal top cover. Before handling circuit boards, put on a static wrist strap. 4. Remove the power supply (PS) and inspect it for any burn marks. Replace the PS if you find any signs of burning or overheating. 5. Reinstall the PS. Check that PS connector P101 is correctly and fully seated in connector J101 on the controller board. Verify that pin 1 on P101 goes into pin 1 on the controller board. If P101 is ever plugged in backwards with the power on, the controller board will probably be damaged. 6. Check the shuttle for shorts by conducting the Shuttle Electrical Shorts Test on page 252. This is IMPORTANT! Replace the shuttle if it is defective. If it passes the shorts test, remove the shuttle frame assembly and place it on a hard, flat surface. Spin the flywheel by hand. The flywheel should spin more than one turn and there should be no binding anywhere in its spin. If it fails this test, replace the shuttle frame assembly. 7. Replace the hammer bank power and logic cables. (Refer to 086 CONTROL 15V CHECK / SEE USERS MANUAL, steps 4 through 7.) Plug in the printer and power it on. 76