Lexmark C510 Service Manual - Page 174
Is 0 VDC present
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5021-0XX Step Questions / actions Yes No 6 Remove paper tray, fill with Replace I/O Replace paper paper and reinsert. Check voltage level on DCN16 pin 8. Is 0 VDC present? board. See "I/O board removal" on page 4-70. If guide (C) assembly . See "Paper guide problem (C) assembly persists, replace removal" on engine controller page 4-47. board. See "Engine controller board removal" on page 4-55. 7 Turn printer off. Remove Replace paper Replace cable. paper guide (C) assembly. guide (C) See "Paper guide (C) assembly . See assembly removal" on "Paper guide page 4-47. Check cable for (C) assembly continuity that connects removal" on DCN16 pins 7, 8, and 9 to page 4-47. paper empty sensor. Also check for shorted pins. Is cable okay? 8 Touch positive lead to Replace I/O Go to step 9. DCN13 pin 9 and pin 11 to board. See "I/O ensure 5 VDC is being supplied to I/O board. Is 5 VDC present? board removal" on page 4-70. 9 Check cable continuity Replace LVPS. Replace cable. between LVPS ACN1 and I/ See "Low O board DCN13. Also voltage power check for shorted pins. Is supply (LVPS) cable okay? with cage removal" on page 4-60. 2-96 Service Manual