Engine Control Circuit Board (Pl12.1.1) - Xerox Phaser 6250 Service Manual

Engine Control Circuit Board (PL12.1.1)

Caution
Critical printer specific information is stored in the engine NVRAM. Save
this information to the Image Processor Board using the Service Diagnostic
NVRAM Access/MCU NVRAM Store/Restore
information is provided in "Service Diagnostic Tests" on page 3-9. If the
printer is not functional, or optionally even if it is, restore the information by
swapping the NVRAM following board replacement.
1.
If the printer is functional, save the information in the engine NVRAM using the
Service Diagnostic
starting disassembly.
Caution
Observe proper ESD procedures (page 8-3) when removing any circuit
board from the printer.
2.
Remove the Image Processor Board (page 8-110).
3.
Remove the Card Cage (page 8-103).
4.
Remove the Housing Assembly Contact (page 8-106).
5.
Remove the 4 screws securing the Cover Engine Control Board to the Card Cage.
Service Parts Disassembly
NVRAM Access/MCU NVRAM Store
function. Detailed
function before
6250-226
8-107