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Riso MZ1090

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Replacement. SH4F PCB

  1. Memo down the User Mode setting made on the machine for the re-inputting purpose at the end of the procedure.
  2. Turn OFF the machine power. Then insert a clean CF (compact flash) card, in a card adopter with no data inside, into the card slot on the SH4F PCB.
  3. Turn ON the machine power in Test Mode and activate Test Mode No. 103 to upload the test mode settings from the existing SH4F PCB onto the CF card.
  4. Turn OFF the machine power and remove the CF card from the slot
  5. Replace the existing SH4F PCB with a new one.
  6. Download SH4F PCB firmware onto the new SH4F PCB, using another CF card in a card adopter. The firmware version to download must be the same version as the one which was on the removed SH4F PCB.
  7. Turn OFF the machine power once the firmware is downloaded onto the new SH4F PCB, and remove the CF card from the slot.
  8. Turn the machine power back ON in Test Mode. Activate Test Mode No. 9874 to access into the protected area test mode.
  9. Without turning the power OFF, activate Test Modes No.110 (Jam status clear), No.112 (test mode data clear), No.111 (user area memory clear) and No.1193 (REv data clear) in the order given.
  10. Turn OFF the machine power and insert CF card, with the uploaded test mode settings, uploaded from the machine in step No. 3 above.
  11. Turn the machine power back ON in Test Mode and activate Test Mode No. 105 (downloading of the stored test mode settings back into the new SH4F PCB).
  12. Turn OFF the machine power and remove the CF card from the card slot.
  13. Turn ON the machine power, and confirm that the machine starts up in the normal condition.
  14. Complete the PCB replacement job by re-inputting the User Mode settings, copied down in Step No.1.
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