Canon 1730, Service Manual

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Disassembly/Assembly > Controller System > Removing the HVT PCB > Procedure
Disassembly/Assembly > Controller System > Removing the HVT PCB > Procedure
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■ After Replacement
1) When replacing the Main Controller PCB with a new one, be sure to perform the following
procedure.
• Download the latest firmware using UST.
(Refer to Software to Be Upgraded and Upgrading Method)
2) When backup data cannot be uploaded before replacement due to reasons such as
damage of the Main Controller PCB, enter the value of each service mode item described
on the service label.
Since the values recorded on the service label may not be the latest at this time, check the
service mode item list (#SERVICE DATA LIST) printed out in advance, and enter the values
on the list.
3) Turn OFF and then ON the power.
(By turning OFF and then ON the power, the value entered in each service mode item
becomes enabled.)
4) Upon completion of the replacement work, request the user to restore the user data.
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Removing the HVT PCB
■ Preparation
1) Remove the Rear Cover.(Refer to page 4-24)
2) Remove the Delivery Outer Cover.(Refer to page 4-29)
3) Remove the Left Cover.(Refer to page 4-27)
■
Procedure
1) Remove the HVT PCB [1].
• 3 Wire Saddles [2]
• 1 Edge Saddle [3]
• 1 Connector [4]
• 2 Screws [5]
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