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4-14 Chapter 4: Hardware ServiceRemoving the Main Processor BoardNote: The Power Supply does not have to be removed before theMain Processor board is removed, but the Auxiliary Power board does.1. For 686 and earlier processor boards, remove the screws (3) thatsecure the processor board bracket to the back of the chassis.Note: Series 4xxx main processor boards are not secured by abracket to the back of the chassis.Remove Screws (3)15127e2. Remove the Control Panel harness.3. Remove the screws (6) that secure the board to the chassis base(next page).
Chapter 4: Hardware Service 4-154. Lift the front of the board and slip it out of the chassis.Remove Screws (3)Remove Screws (3)15136a
Page 1 and 2: NCR 7453 WorkstationRelease 3.2Hard
Page 3 and 4: iSafety WarningsPrefaceAudienceThis
Page 5 and 6: iiiGrounding InstructionsIn the eve
Page 7 and 8: vTable of ContentsChapter 1: Produc
Page 9 and 10: viiRemoving the Fan................
Page 11 and 12: ixRevision RecordIssue DateRemarksA
Page 13 and 14: xiVoluntary Control Council for Int
Page 15 and 16: 11Chapter 1: Product OverviewIntrod
Page 17 and 18: 2Chapter 2: POST DiagnosticsPower-O
Page 19 and 20: Chapter 2: POST Diagnostics 2-3Beep
Page 21 and 22: Chapter 2: POST Diagnostics 2-5Beep
Page 23 and 24: 3Chapter 3: TroubleshootingIntroduc
Page 25 and 26: Chapter 3: Troubleshooting 3-3Diagn
Page 27 and 28: Chapter 3: Troubleshooting 3-5Gener
Page 29 and 30: Chapter 3: Troubleshooting 3-7Syste
Page 31 and 32: Chapter 3: Troubleshooting 3-9Power
Page 33 and 34: Chapter 3: Troubleshooting 3-11Hard
Page 35 and 36: Chapter 3: Troubleshooting 3-13Serv
Page 37 and 38: Chapter 3: Troubleshooting 3-15RESO
Page 40 and 41: 4-2 Chapter 4: Hardware ServicePowe
Page 42 and 43: 4-4 Chapter 4: Hardware ServiceAC I
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Index-2PCI LCD boardSVGA, 4-71VGA,
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