18
KDV-3241Y/MP4339
/MP4439/MP5032
MAIN FIRMWARE UPGRADE METHOD
1. Con
fi
rmation of version information
• Change the Source of audio set to CD/DVD. (Default:
tuner)
• Turn power off using power key.
• Press power key for 5 sec. (After power on, continue
pressing)
• After 5 sec, beep sound rings two times. Then version
information would show up at display.
• In order to check version of MAIN/CD system, Press
band key.
• The version of system for main & CD is displayed in se-
quence.
2. Upgrade Program reading
• Insert update CD in ACC on state and then [READING
→
M_UPGRAD] is displayed in order.
3. Upgrade start
• In order to start upgrade, Press 1 [ENTER] key
4. Upgrade progress display
• Upgrade is in progress now. [Erase
→
Write
→
I-VRF
→
D-VRF]
5. Upgrade Completion
• When Upgrade
fi
nished, the display shows up “DOWN
OK”. After 3 seconds, the audio set is reset automati-
cally.
•
Caution
If power is off on the way of upgrading
fi
rmware, the set
can’t be recovered. Therefore pay lots of attention for
power not to be off.