IBM 4247-003 Maintenance Manual - Page 77
Table 11. MAP 0150: Power Supply continued, Questions/Actions, Are the voltage, measurements OK?
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Table 11. MAP 0150: Power Supply (continued) Questions/Actions 3. Put the covers in the service position. See "Removing Covers" on page 275. Disconnect the power supply fan from the power supply board. Power Supply Pins and Connectors: Yes Go to step 4 on page 78. No Install a new power supply. See "Power Supply" on page 400. 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. Disconnect the carriage motor fan from the power supply board. Disconnect the power supply cable to the logic board. Plug the power cord to the printer, then to the power source. Power on (|) the printer. Measure the power supply connector voltages. Measure between a connector ground pin and the voltage pins. See "Reference Table 8, Power Supply Connector Pins and Voltages" on page 156 for pins and voltages. Are the voltage measurements OK? Chapter 1. Diagnosing Problems 77
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