IBM 6500-V1P Maintenance Manual - Page 119
the Main Wire Harness Test Tables in Replace
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Operator Panel Message 139 OVERSPEED CHECK * SEE USERS MANUAL Display Messages Table 3. Message List Explanation Corrective Action Firmware error on the controller board. 1. Cycle power. Run the print job again. If the message appears, download the emulation software again. 2. Remove the shuttle cover. Remove the paper guide assembly or the pedestal top cover. Make sure the MPU cable (P/N 14H5329) is not pinched. Check both the section of MPU cable coming from the sensor and the intermediate cable extension that runs to the controller board. (Refer to the Interconnection Diagram in Chapter 3.) Check the resistance of the MPU at connector P107. (Refer to the Main Wire Harness Test Tables in Chapter 3.) Replace the MPU if it fails the test. Adjust the gap between the MPU and the shuttle motor flywheel to 0.010 inch (0.254 mm). 3. Check the shuttle for electrical shorts (page 252). 4. Power on the printer. If the problem reappears, the controller board or microcode is suspect. Do the following: 5. Save the printer configuration values. (Refer to the User's Manual.) 6. Clear NVRAM (page 237). 7. Download and install the latest code from IBM First (page 231). 8. Power on the printer in download mode and load flash memory (page 238). a. If you encounter loading problems, go to the appropriate error code for resolution. b. If you encounter the failure or message that brought you to this procedure, replace the controller board (page 319). After replacing the controller board, DO NOT make the printer READY, but proceed immediately to the next step. 9. Download and install the latest code from IBM First (page 231). 10. 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. 119