Sony HCD-EC55 Service Manual page 23

[CD SERVICE MODE]
This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.
Procedure:
1. Press the @/1 button to turn the power on.
2. Press three buttons of CD u ,
simultaneously.
4. It enters the CD service mode and displays "SERVICE".
5. To exit from this mode, press three buttons of CD u ,
and DISPLAY simultaneously.
Key Operation:
TUNING+ML , lm –TUNING :
Use these keys to move the SLED. When
TUNING+ML is pressed in this mode, the
SLED moves to outer circumference and the message
"SLED OUT" is displayed.
When lm –TUNING is pressed in this mode,
the SLED moves to inner circumference and the
message "SLED IN" is displayed.
PLAY MODE/TUNING MODE :
Use this key to turn the optical pick-up laser power
on and off. When the laser power is turned on, the
message "LD ON" is displayed. When the laser
power is turned off, the message "LD OFF" is
displayed.
[CD ERROR CODE]
The past errors of the CD mechanism (CDM) are displayed as the
CDM Errors, and those of the optical pick-up system (= optical unit
+ BD board) are displayed as the BD Errors as shown below.
Procedure:
1. Press the @/1 button to turn the power on.
2. Press the FUNCTION button to select CD function.
3. Press three buttons of CD u , x and DISPLAY
simultaneously.
4. Then, the CDM error code is displayed as "M0xxxxxx" (x
means hexadecimal number) on the LCD screen as shown
below.
5. Every pressing of the TUNING+ML button in this mode
increments the number after "M" starting from "M0" up to
"M9", and then returns to "M0". Every pressing of the
lm–TUNING button in this mode decrements the
number after "M". The smaller the error code number is, the
newer the error content is.
6. When the PLAY MODE/TUNING MODE button is pressed
then, the BD error code is displayed as "D0xxxxxx" (x means
hexadecimal number) on the LCD screen as shown below. In
the same way as the CDM error code, use of the
TUNING+ML and the lm –TUNING buttons in
this mode enables tracing of the error history.
7. To exit from this mode, press the @/1 button to turn the
power off.
Contents of "CDM Errors"
Error display example
1 It indicates the error history number
+ , and DISPLAY
2 It indicates whether the CDM error occurs in the normal
+
3 It indicates the processing during which the trouble has
4 It indicates the operation during which the trouble has occurred.
Contents of "BD Errors"
Error display example
1 It indicates the error history number
2 It indicates the error content
HCD-EC55/EC77/GX99
M 0 FF 11 42
1 2 3 4
0 to 9: The error code number 0 indicates the newest error.
operations or during the initialization operation.
FF : The error has occurred in the normal
operations.
Other than FF : The error has occurred during the initialization
operation.
occurred.
01: The disc EJECT processing is in progress.
02: The disc INSERTION-WAITING processing is in
progress.
03: Processing of the disc INSERTION-REQUEST for the
upper CD tray is in progress.
04: Processing of the disc EJECTION-REQUEST for the
upper CD tray is in progress.
05: The disc pulling-in operation is in progress.
06: The disc chucking processing is in progress.
07: The disc re-chucking processing is in progress.
08: The disc chucking-release completion operation is in
progress.
00 : Waiting for the operation.
10 to 13 : The disc EJECT operation is in progress.
20 : The disc pulling-in operation is in progress.
30 : The disc chucking-release operation is in progress.
40 to 43 : The disc EJECT operation due to error is in progress.
D 0 02 09 01
1 2 3 4
0 to 9: The error code number 0 indicates the newest error.
01: The focus servo cannot lock-in.
02: GFS is no good (NG).
03: The startup time exceeds the specified period of time (time
over)
04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specified period of
time.
06: The tracking servo cannot lock-in.
07: Blank disc
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