Pioneer AVIC Z120BT Operation Manual page 191

Appendix
Symptom
There's no picture.
Rear display picture disappears. The source disc being listened to in
Nothing is displayed and the
touch panel keys cannot be
used.
There is no response when the
touch panel keys are touched, or
a different key responds.
The external storage device
(USB, SD) cannot be used.
Problems in the AV screen
Symptom
CD or DVD playback is not pos-
sible.
The screen is covered by a cau-
tion message and the video can-
not be shown.
Cause
The parking brake cord is not con-
nected.
The parking brake is not applied.
The backlight of the LCD panel is
turned off.
the navigation system has been
ejected.
There is a problem with the "Rear
display", for example a faulty wiring
connection.
An AV source that cannot output to
the rear display is selected.
The setting for the rear view camera
is incorrect.
The shift lever was placed in [R]
when the rear view camera was not
connected.
The touch panel keys deviate from
the actual positions that respond to
your touch for some reason.
The USB storage device has been
removed immediately after plugging
it.
Cause
The disc is inserted upside down.
The disc is dirty.
The disc is cracked or otherwise da-
maged.
The files on the disc are an irregular
file format.
The disc format cannot be played
back.
The loaded disc is a type this system
cannot play.
The parking brake lead is not con-
nected or applied.
The parking brake interlock is acti-
vated.
Action (Reference)
Connect the parking brake cord, and apply
the parking brake.
Connect the parking brake cord, and apply
the parking brake.
Turn on the backlight. (Page 177)
Before ejecting the disc, switch the source.
This problem may occur when certain con-
nection methods are used.
Check the "Rear display" and its connection.
Select an appropriate AV source.
Select the appropriate setting for the rear
view camera.
Select the correct polarity setting for "Back
Camera". (Page 164)
Perform touch panel calibration. (Page 165)
Park your vehicle in a safe place, and turn off
the engine. Turn the ignition key back to Acc
off. Then start the engine again, and turn the
power to the navigation system back on.
Action (Reference)
Insert the disc with the label upward.
Clean the disc.
Insert a normal, round disc.
Check the file format.
Replace the disc.
Check what type of disc it is. (Page 204)
Connect the parking brake lead correctly, and
apply the parking brake.
Park your vehicle in a safe place and apply
the parking brake.
Appendix
191
En