If You Replace The Main Pcb; 1 ] Load Update Programs/Data; 2 ] Initialize The Eeprom On The Main Pcb (Function Code 01); 3 ] Customize The Eeprom On The Main Pcb (Function Code 74) - Brother MFC990CW Service Manual

7.3

IF YOU REPLACE THE MAIN PCB

Note: If you replace the main PCB, it is necessary to make a backup of the machine information and
user setting information into an external memory before starting disassembly of the machine. After
the completion of reassembling jobs, restore the backup data to the new main PCB. For detailed
procedure of the backup and restoration, refer to
Information (Function code 46) (User-accessible)."

[ 1 ] Load update programs/data

If the main PCB is replaced with a new one:
Load the desired programs onto the flash ROM. Refer to
If the main PCB loaded with programs is used (Updating existing programs):
Change the programs stored in the flash ROM. Refer to

[ 2 ] Initialize the EEPROM on the main PCB (Function code 01)

Refer to Chapter 9, Section

[ 3 ] Customize the EEPROM on the main PCB (Function code 74)

Refer to Chapter 9, Section

[ 4 ] Specify the CIS type (Function code 59)

Refer to Chapter 9, Section
[ 5 ] Register base ID code to the main PCB and base unit (cordless PCB) (For models
with cordless handsets)
The following procedure registers the base ID code to both the main PCB and base unit
(cordless PCB) at the same time. For the registration procedure of cordless handsets, see [19]
below.
(1) Read the base ID code from the label attached to the rear of the machine.
NOTE: The code may be 8 or 10 digits long depending upon the machine models.
Base ID code label
(2) On the machine, press the Menu, Black Start (Mono Start), Copy, Scan, Copy, and Scan
keys in this order.
The machine enters the maintenance mode and displays the "
the LCD.
Chapter 9, Section 9.1.4.13 "Backup of Machine
9.1.4.1.
9.1.4.25.
9.1.4.19.
7-30
Appendix 2, page App.
Appendix 2, page App.
(base_ID_code_label_mini9)
2-5.
2-7.
" on
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