4.6.8Update method of firm ware
Power on.
Insert the disc which a farm was written in at.
Screen indication
VERSION UP DISC
PROGRAM WRITING MODE
CURRENT VERSION 0735 
Current version
NEW VERSION 0795 
Version to write in
READING...
If "PLEASE EJECT" was displayed after the writing end, take out a disc.
Close a panel and confirm a version.
Confirmation method of a version
Keep this state more than 2 seconds while continuing pressing the [DISP] button, [VOLUME+] button and [EJECT] button sequentially to enter this set in service mode 3.
Select the service mode and press the [OK] button. Select the version and press the [OK] button.
JD4
It is a version written in.
Power off.
