Olivetti d-Copia 3501 Service Manual page 255

Remove the boot ROM and
replace it with a spare.
(If another ROM is NG, replace it, too.)
Writing by CN6 of the
controller PWB (C.)
Result: OK ?
NO
ROM trouble?
Replace the ROM and retry.
Remove the ROM and
replace it with a spare.
Writing by CN6 of the
controller PWB (C.)
Result: OK ?
NO
ROM trouble?
Replace the ROM and retry.
12-4
NO
Rebootable?
Update completed
YES
Update completed
NO
Rebootable?
Update completed
YES
Update completed
Service Manual
YES
Write with onboard
collective files (B.)
YES
Result: OK ?
NO
YES
Write with onboard
collective files (B.)
YES
Result: OK ?
NO
Y105220-6