3.1.8 Caution about Replacing SCNT Board
[1] Caution about the Jumper Switch when Replacing or Repairing SCNT Board
Backing up data stored in the control memory is activated by lithium battery with the jumper switch
(JP51) mounted on SCNT board being shorted out. If the power goes off with JP51being open, data stored
in the control memory is be deleted. If it is necessary to have JP51 open, be sure to check data in the
control memory and in the audio memory or output such data beforehand. Please note that JP51, which is
mounted on SCNT board (a service part), has a jumper plug inserted halfway (open) when stocked. (This is
to prevent battery drain when stocked as service part.) Therefore, it is necessary to insert a jumper plug
thoroughly to have JP51 being shorted out when replacing a mounted SCNT board with SCNT board
stocked as service part.
(*1) Caution about Image/Audio Data
Data stored in the image memory is deleted when the machine is turned OFF. Audio data is not deleted when the
machine is turned OFF as it is stored in the flash memory. Management information of image/audio data is
stored in SRAM and is backed up by lithium battery.
(*2) Caution about Undertaking Repair
When taking users’ machines for repairmen, data registered in the machine may be deleted during the course of
repair. So be sure to ask users to check registered data (user data of one-touch speed dialing) or to output such
data before repair. However, data may not be checked if LCD is damaged or the printer is damaged.
(*3) Caution about Returning Repaired Machine to Users
If ALL CLEAR is executed or SCNT board is replaced, registered data is deleted. Be sure to let users
know that registered data has been deleted due to repair.
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