Controller Board/Control Panel Replacement; Ribbon Cable Connectors - Konica Minolta Bizhub 4700P Service Manual

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Be extra careful while working with ESD-sensitive parts when cold-weather heating is used,
because low humidity increases static electricity.
6.1.3

Controller board/control panel replacement

This procedure should be followed only if both the controller board and the control panel fail. If you need
to replace only one of the FRUs, follow the startup procedure described in the FRU's removal
procedure.
CAUTION—POTENTIAL INJURY
The lithium battery in this product is not intended to be replaced. There is a danger of explosion if a
lithium battery is incorrectly replaced. Do not recharge, disassemble, or incinerate a lithium battery.
Discard used lithium batteries according to the manufacturer's instructions and local regulations.
Warning—Potential Damage: If the control panel and the controller board are being replaced at the
same time, replace the parts in this order to avoid damage to the machine.
1. Replace the controller board.
Note: Do not replace the new control panel and controller board in the machine at the same time.
2. After installing the new controller board, and before installing the new control panel, start the printer
into diagnostics mode.
3. After the printer has completed startup, turn off the printer and replace the control panel.
Note: If the control panel display has failed, the printer's startup cycle is complete when the driver
motor and fans shut down, and the machine is quiet.
4. After installing the new control panel, start the printer into diagnostics mode, and allow the printer to
go through a complete startup cycle and the display to go to Ready.
5. If the problems persist, leave the new control panel in the machine, place the old controller board
back in the machine, and start it up. After the machine startup, shut down the machine, and install
the new controller board. After installing the new controller board, restart the machine, and let it go
through the startup cycle.
After this procedure is completed successfully, there is no need to adjust any settings.
If the above procedure fails, you must contact the technical support center for further instructions.
6.1.4

Ribbon cable connectors

Zero Insertion Force (ZIF) connectors
Zero Insertion Force (ZIF) connectors are used on the boards and cards used in this printer. Before
inserting or removing a cable from these connectors, read this entire section. Great care must be taken
to avoid damaging the connector or cable when inserting or removing the cable.
Warning—Potential Damage: Do not insert the cable so that the contacts are facing the locking
actuator. The contacts always face away from the actuator.
Warning—Potential Damage: Do not insert the cable diagonally into the ZIF socket. This can cause
damage to the contacts on the cable.
Warning—Potential Damage: Avoid using a fingernail, or sharp object to open the locking mechanism.
This could damage the cable.
bizhub 4700P/bizhub 4000P Service Manual
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