JVC KV-PX9BJ Service Manual page 18

Function buttons are gone after reboot.
1-18 (No.MA272)
Debug Info
uncheck
The setting is preserved when
coming off the service mode.
reboot
reset
Map Matching
Map Matching
check
The setting is preserved when
coming off the service mode.
Back
VP button
VP button
VP button
Removes debug information
Back
Back
VP button
VP button
VP button
Map Matching to ON
Back
Back
Back