IBM 6500-V05 Maintenance Manual - Page 90

Operator Panel Message 102 LOWER DRIVER SHORT * SEE USERS MANUAL Display Messages Table 3. Message List Explanation Corrective Action Circuit(s) on the hammer bank or in the hammer bank power cable are shorted to ground. 1. Cycle power. If the message appears, press STOP. If the message does not clear, replace the hammer bank logic cable and the hammer bank power cable. 2. Check the shuttle for electrical shorts (page 252). 3. Power on the printer. If the message appears, replace the shuttle frame assembly. 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). 11. If you encounter the failure after replacing the controller board, reinstall the original controller board and contact your DDS and Second Level Support. 90