Xerox 7700DX Service Manual - Page 96
ERROR 54 FAN FAILURE, Error, Chain, Front Panel Message
View all Xerox 7700DX manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 96 highlights
Error Code Chain / Link Front Panel Message 54 10-398 ERROR 54 FAN FAILURE Enter Service Diagnostics Mode. Run the "Fuser Fan" test. Does the Fuser Fan operate? Yes No Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and the Rear Shield Bracket (RRP 11, on page 7-165). Measure the voltage between P530-1 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure +24 VDC? Yes No Replace the Engine Control Interface Board (RRP 43, on page 7-207). Measure the voltage between P530-4 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure 0 VDC? Yes No Replace the Engine Control Interface Board (RRP 43, on page 7-207). Measure the voltage between P530-3 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure +5 VDC? Yes No Replace the Engine Control Board (RRP 42, on page 7-206). If the problem persists, repair or replace the harness between Engine Control Board and the Fuser Fan. Replace the Fuser Fan Assembly (RRP 34, on page 7-195). Remove the Rear Cover (RRP 1, on page 7-154), Rear Shield (RRP 9, on page 7-163) and the Rear Shield Bracket (RRP 11, on page 7-165). Measure the voltage between P530-5 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure +24 VDC? Yes No Replace the Engine Control Interface Board (RRP 43, on page 7-207). Measure the voltage between P530-8 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure 0 VDC? Yes No Replace the Engine Control Interface Board (RRP 43, on page 7-207). Measure the voltage between P530-7 (see figure page 2-46) on the Engine Control Board and frame ground. Does the voltage measure +5 VDC? Yes No Replace the Engine Control Board (RRP 43, on page 7-207). If the problem persists, repair or replace the harness between Engine Control Board and the +24 VDC LVPS Fan. Replace the +24 VDC LVPS Fan (RRP 47, on page 7-212). 2-66 Phaser 7700 Color Laser Printer Service Manual