Sony MHC-V7D Operating Instructions Manual page 52

Returning the SETUP settings to
the default
You can return the SETUP settings
(except for PARENTAL CONTROL
settings) to the default settings.
1
Press SETUP.
2
Press /
[SYSTEM SETUP], then press
3
Press /
[RESET], then press
4
Press /
[YES], then press
It takes a few seconds to complete.
Do not press  when resetting the
system.
Self-diagnosis Function
When letters/numbers appear
on the TV screen or in the display
panel
The self-diagnosis function is activated
to prevent the system from
malfunctioning, a 5-character service
number (e.g. C 13 50) with a
combination of a letter and 4 digits
appears. In this case, check the
following table.
First 3 characters
of the service
number
C 13
C 31
52 GB
repeatedly to select
repeatedly to select
.
repeatedly to select
.
Cause and corrective
action
This disc is dirty.

Clean the disc with a
soft cloth (page 54).
The disc is not inserted
correctly.

Restart the system,
then re-insert the disc
correctly.
First 3 characters
of the service
number
E XX
(XX is a number)
.
Messages
One of the following messages may
appear or flash in the display panel
during operation.
CANNOT PLAY
 A disc that cannot be played back
was inserted.

A DVD VIDEO with unsupported
region code was inserted.
DATA ERROR
 The file does not conform to the
required format.

The file extensions does not match
the file format.
DEVICE ERROR
The USB device could not be
recognized or an unknown device is
connected.
DEVICE FULL
The memory of the USB device is full.
ERASE ERROR
Erase of audio files or folders on the
USB device failed.
FATAL ERROR
The USB device was removed during
transfer or erase operation, and may
have been damaged.
Cause and corrective
action
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