Replacement And Adjustment; Main Board; Precautions; Controller Board - Ricoh B867 Manual

Main Board

2. REPLACEMENT AND ADJUSTMENT

2.1 MAIN BOARD

2.1.1 PRECAUTIONS

Turn off the main power switch and unplug the machine before starting
replacement.
Before turning off the main power switch, check that no mechanical component is
operating. Mechanical components may stop out of their home positions if you turn
off the main power switch while they are operating. The component may be
damaged if you try to remove it when it is not in the home position.

2.1.2 CONTROLLER BOARD

Before replacing the controller board, be sure to print out SMC or save the
NVRAM data.
Saving from the Controller NVRAM to an SD card (
Upload/Download [SP5-824/825]" in the chapter "Service Tables" of the this
manual)
B867
"NVRAM Data
18 SM