When Replaced Rom Ics Or Upgraded Firmware - Mitsubishi Electric DD-5000 Service Manual

2-6. When Replaced ROM ICs or Upgraded Firmware

1. When replaced the following ROM ICs, it is necessary
to write the data into the new ICs.
1) IC615 (firmware)
2) IC613 (Setup default data and other information)
2. When the firmware is upgraded, rewriting the new
firmware into IC615 may be requested for servicing.
Computer
(MS-DOS/PC-DOS)
Note:
• The firmware and setup data floppy discs are not available as service parts.
DATA UPDATE KIT
(RS-232C Interface/cable)
RS-232C
cable
3. Connect a computer to the main PC board of the DVD
video player with using DATA UPDATE KIT (P/No.
79080074). (Fig. 3-2-6)
4. Writing operation
Refer to the instruction attached to the data floppy
disc.
Fig. 3-2-6
3-4
CN601