Sony HCD-GZR33D Operating Instructions Manual page 121

Self-diagnosis Function
(When letters/numbers appear in the
display)
When 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 on the TV screen or the front
panel display. In this case, check the
following table.
First  Cause and corrective
characters of action
the service
number
C 13 This disc is dirty.
 Clean the disc with a
soft cloth (page 125).
C 31 The disc is not inserted
correctly.
 Restart the system,
then re-insert the
disc correctly.
E XX To prevent a
(XX is a malfunction, the
number) 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
When displaying the version number
on the TV screen
When you turn on the system, the
version number [VER.X.XX] (X is a
number) may appear on the TV screen.
Although this is not a malfunction and
for Sony service use only, normal system
operation will not be possible. Turn off
the system, and then turn on the system
again to operate.
Messages
Messages similar to the following, or
more detailed information, may appear
on the TV screen during operation.
CANNOT PLAY
 A disc that cannot be played back was
inserted.
 A DVD VIDEO with unsupported
region code was inserted.

Continued
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