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NCR PC4i Service Manual

Also see for PC4I: Technical referenceService manualOwner's manual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. NCR Personal Computer Hardware
  5. Models
  6. Power On
  7. Model Numbers
  8. Tools
  9. Alternate Main Processor Board
  10. Power Cords and Switches
  11. Memory Test Messages
  12. After First Attempt
  13. After Second Attempt
  14. Power Supply
  15. Peripherals
  16. Restore Full Configuration
  17. Test CRT and Disk Drives
  18. Other MPB Tests
  19. Error Returns
  20. Parallel Port Error Codes
  21. Load the Diskette
  22. Main Menu
  23. Main Menu Help Screens
  24. Test Completion Displays
  25. Diagnostic Selections
  26. Run all Tests Once
  27. Memory (Main Menu Selection 1)
  28. Memory Test Help Screens
  29. RAM Address Test
  30. RAM Parity Test
  31. RAM Walking Ones Test
  32. Firmware Checksum Test
  33. Controllers Test Help Screens
  34. DMA Test
  35. Flexible Disk Controller Test
  36. Interval Timer Test
  37. Interrupt Controller Test
  38. CPU Controller Test
  39. Monochrome Display Controller Test
  40. Keyboard (Main Menu Selection 3)
  41. Read Only Drive A Test
  42. Fixed Disk Drive (Main Menu Selection 5)
  43. Read/Write Maintenance Track
  44. Read Only Sector 0
  45. Read Only Entire Disk
  46. Fixed Disk Controller
  47. Monochrome Display (Main Menu Selection 6)
  48. Serial Port Loopback Test
  49. Parallel Port Loopback Test
  50. Printer Tests
  51. Generic Printer Test
  52. PC Compatible Printer Test
  53. Utilities
  54. Local Test
  55. Picture Test
  56. Preliminary Checks
  57. Main Processor Board Components
  58. Memory Addressing
  59. Error Codes
  60. Format of Displayed Error Codes
  61. Memory Error Codes
  62. Repair Procedure 01
  63. Repair Procedure 02
  64. Repair Procedure 03
  65. Repair Procedure 04
  66. Flexible Disk Drive Error Codes
  67. Repair Procedure 06
  68. Keyboard Error Codes
  69. Repair Procedure 08
  70. Repair Procedure 09
  71. Peripheral Error Codes
  72. Repair Procedure 10
  73. Repair Procedure 11
  74. Repair Procedure 12
  75. Repair Procedure 14
  76. Repair Procedure 16
  77. Repair Procedure 17
NCR PC4i Service Manual Manual pdf 92 page image
LEVEL 1 DIAGNOSTICSRead Only Entire DiskIf selection 3 of the Fixed Disk Drive test menu ischosen. First a screen is displayed where you arerequested enter the number of fixed disk to test.After selecting the number of the drive to be testedthe Read Only Disk test is run:In the above display, the drive number is 00 for thefirst integrated fixed disk drive or for the firstexternal fixed disk drive if no integrated drive ispresent. Head number is increased by increments of 1from 00 to 03 as the test proceeds. Track number for4 - S 4
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This manual is suitable for:
PC4I
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