Sony CMT-M90DVD - Manual (Page 50)

50 GB
Self-diagnosis function
(When letters/numbers appear in the
display)
When the self-diagnosis function is activated to
prevent the system from malfunctioning, a five-
character service number (e.g., C 13 00) with a
combination of a letter and digits appears on
the screen. In this case, check the following
table.
First three
characters of
the service
number
C 13
C 31
E XX
(XX is a number)
Cause and/or Corrective
Action
The disc is dirty
, Clean the disc with a soft
cloth (see page 51).
The disc is not inserted correctly.
, 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
C:13:00
Problems and remedies (continued)