Sony MHC-V72D Operating Instructions Manual page 69

Resetting the system
If the system still does not operate
properly, reset the system to factory
default settings.
Use the controls on the unit to
perform this operation.
1
Unplug the AC power cord (mains
lead), then plug it back in.
2
Press  to turn on the system.
3
Touch and hold GUITAR and
MEGA BASS for about 3 seconds.
"RESET" appears on the display.
After the reset completes, the
system automatically reboots. Press
 to turn on the system.
All BLUETOOTH pairing information
and user-configured settings, such
as preset radio stations are reset to
factory default setting (except for
some setup menu settings).
To reset all setup menu settings, see
"Returning the setup menu settings
to the default" (page 69).
Returning the setup menu
settings to the default
You can return the setup
menu settings (except for
[PARENTAL CONTROL] settings) to
the default settings.
1
Hold down SHIFT and press
SETUP.
The setup menu appears on the TV
screen.
2
Press / repeatedly to select
[SYSTEM SETUP], then press
3
Press / repeatedly to select
[RESET], then press
4
Self-diagnosis function
When the self-diagnosis function is
activated, a service number appears
on the TV screen or the display.
The service number consists of an
alphabet and numerals (e.g. C 13 50).
See the following table for the cause
and corrective action.
First 3
characters of
the service
number
C 13
C 31
E XX
(XX is a
number)
.
.
Press / repeatedly to select
[YES], then press
It takes a few seconds to complete.
Do not press  while resetting the
system.
Cause and corrective
action
This disc is dirty.
Clean the disc with a
• •
soft cloth (page 71).
The disc is not inserted
correctly.
Turn off the system,
• •
then turn it on again.
Then re-insert the disc
correctly.
To prevent a
malfunction, the system
has performed the
self-diagnosis function.
• • Contact your nearest
Sony dealer or local
authorized Sony service
facility and give the
5-character service
number.
Example: E 61 10
.
69
GB