IBM 4247-003 Maintenance Manual - Page 74
see Logic Board - Model A00 on, Or Logic Board - Model 003
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Table 10. MAP 0140: Printhead Drive (continued) Step Questions/Actions Yes No 7. Disconnect the 26-conductor printhead Re-install the printhead. Carefully follow Install new printhead cables. cable from the logic board (see the replacement procedure, "Printhead" "Chapter 4. Locations" on page 265). on page 356. Re-install the printhead. Carefully follow the replacement procedure, "Printhead" See "Printhead Cable Wiring" on Install a new carriage motor. See on page 356. page 258 to measure the resistance of pin 5 end-to-end and pin 6 end-to-end (these pins are the same for both an 18-wire and a 9-wire printhead). Is the resistance 5 ohms or less for both pins? "Carriage Drive Motor Assembly" on page 415. Run T&D in automatic mode to verify correct printer operation. For Model - or - A00, see "How To Run the Test and Diagnostic (T&D) Programs" on Install a new logic board. For Model A00, page 161. For Models 001, 002, or 003, see "Logic Board - Model A00" on see "How To Run the Test and page 370. For Models 001 and 002, see Diagnostic (T&D) Programs" on "Logic Board - Models 001 and 002" on page 201. page 378. Or "Logic Board - Model 003" on page 366. - or - Install a new sensor cable (includes the printhead home sensor). See "Sensor Cable Assembly" on page 441. Run T&D in automatic mode to verify correct printer operation. For Model A00, see "How To Run the Test and Diagnostic (T&D) Programs" on page 161. For Models 001, 002, or 003, see "How To Run the Test and Diagnostic (T&D) Programs" on page 201. Chapter 1. Diagnosing Problems 74