HCD-GT220, HCD-GT440, HCD-GT660, MHC-GT220, MHC-GT440, MHC-GT660 - Sony Audio Service Manual (repair manual). Page 17

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HCD-GT220/GT440/GT660
17
The 9th and 10 th digit from the left indicates:
(Tray status display)
The 9th and 10th digit from the left indicates which target process-
ing when an error occurred is indicated.
Display
Status
0
1
Open operation
1
2
Close operation
1
8
Ex-open operation
2.  Optical Pick-up Error Code Mode
When this mode is entered, optical pick-up error code is displayed 
with the 8-character format on the fl uorescent indicator tube.
The fi rst digit from the left indicates:
The fi rst digit from the left indicates which mode the error history 
is. In the optical pick-up error code mode, “D” is displayed on the 
fl uorescent indicator tube.
The second digit from the left indicates:
(Error history No. display)
The second digit from the left indicates which order the error histo-
ry is. “0” indicates the latest error history, and each time the num-
ber increases by one, the error history goes back to one-previous 
error.
The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
Display
Status
0
1
Not focused (TOC read without a disc)
0
2
GFS NG (TOC read with a disc chucked)
0
3
Start operation time-over
0
4
Defocused continuously (Defocused during TOC 
reading)
0
5
Q code not entered for specifi ed time
0
6
Tracking not turned ON
0
7
Blank disc (Blank disc TOC read)
The 5th and 6th digit from the left indicates:
(Error step display)
The 5th and 6th digit from the left indicates which processing 
when a trouble occurred
Display
Contents
0
1
Power OFF in progress
0
2
Initialize in progress
0
3
Oscillation stopping
0
4
From oscillation stop, oscillation starting
0
5
Stopping
0
6
Stop operation is under way
0
7
Start operation in progress
0
8
TOC read in progress
0
9
Search operation is under way
0
A
Playback operation is under way
0
B
Pause operation is under way
0
C
Playback manual search operation is under way
0
D
Pause manual search operation is under way
0
E
The 7th and 8th digit from the left indicates:
The 7th and 8th digit from the left indicates which operation in 
progress when a trouble occurred. (Step of each processing of the 
5th and 6th digits is indicated)
5  REPEAT  LIMIT  CANCEL  MODE
Number of repeat for CD playback is 5 times when the repeat 
mode is “REPEAT”. This mode is used to enables CD to repeat 
playback for limitless times.
Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  Press the [CD] button to select “CD”.
3.  Press three buttons of [
x
], [CD] and [
u
] simultaneously.
4.  The message “LIMIT OFF” is displayed on the fl uorescent in-
dicator tube momentarily, CD repeat 5 limit is cancelled.
CD/USB  POWER  MANAGE
This mode is used to changed over CD and USB power on/off for 
decreasing of reception noise in the tuner mode.
Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  Press the [CD] button to select “CD”.
3.  Press the [
?/1
] button to turn the power off.
4.  Press two buttons of [
x
] and [
?/1
] simultaneously.
5.  The message “CD/USB POWER ON” or “CD/USB POWER 
OFF” is displayed on the fl uorescent indicator tube, and CD 
and USB power on/off changed over in the tuner mode.
BOOSTER  ON/OFF
This mode is used to changed over MP3 booster on/off.
Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  Press the [USB] button to select “USB”.
3.  Press three buttons of [
x
], [SURROUND] and [USB] simulta-
neously.
4.  The message “BOOSTER ON” or “BOOSTER OFF” is dis-
played on the fl uorescent indicator tube, and MP3 booster on/
off changed over.
EXCITER  ON/OFF
This mode is used to changed over the exciter on/off.
Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  Press the [CD] button to select “CD”.
3.  Insert a MP3 disc.
4.  Press three buttons of [
x
], [SURROUND] and [AUDIO] si-
multaneously.
5.  The message “EXCITER ON” or “EXCITER OFF” is dis-
played on the fl uorescent indicator tube, and the exciter on/off 
changed over.
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