| POR Procedure?? Need Help on X642 MFP Service manual says:
POR = Power On Reset
Under system board replacement it warns you not to replace the Flatbed Interconnect board, System board, and/or Interface Card assembly simultaneously.
Although the manual never actually explains the procedure, to me a power on reset is cycling power off and then on.
If you replace one or more of these you have to power it off and then back on. If you don't the service manual says it will render the machine inoperable. (Probably has something to do with firmware built into the boards). |