HCD-GX40, MHC-GX40 — Sony Audio Service Manual (repair manual). Page 16

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16
HCD-GX40
[MC Test  Mode]
• This mode is used to test the function of the equalizer.
Procedure:
1. Press  ?/1  button to turn the set ON.
2. To enter the test mode, press the three buttons  x ,  GAME EQ
and  DISC 3  simultaneously.
3. Press the  MOVIE EQ  button.
The function of the equalizer is set to “MIN”.
4. Press the  MUSIC EQ  button.
The function of the equalizer is set to “MAX”.
5. Press the  P.FILE  button.
The function of the equalizer is set to “FLAT”.
6. To exit from this mode, press  ?/1  button to turn the set OFF.
[CD Ship Mode (No Memory Clear) ]
• This mode moves the pickup to the position durable to vibra-
tion. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press  ?/1  button to turn the set OFF.
4. Press  CD  button and  ?/1   button simultaneously.
5. The "STANDBY" display blinks instantaneously, and the CD
ship mode is set.
[Disc Tray  Lock]
Procedure:
1.
Press the  ?/1  button to turn the set on.
2.
Press two buttons of  x  and  OPEN/CLOSE  simultaneously
for five seconds.
3.
The message “LOCKED” is displayed and the tray is locked.
(Even if exiting from this mode, the tray is still locked.)
4.
Press two buttons of  x  and  OPEN/CLOSE  simultaneously
for five seconds again.
5.
The message “UNLOCKED” is displayed and the tray is
unlocked.
6.
To exit from this mode, press the  ?/1  button to turn the set
off.
[GC Test  Mode]
• All fluorecent segments and LEDs are tested.
• Keyboard check.
Procedure:
1. Press  ?/1  button to turn the set ON.
2. To enter the test mode, press the three buttons  x ,  GAME EQ
and  DISC 2  simultaneously.
3. All segments and LEDs (without STANDBY LED) are turned
on.
4. Press  GAME EQ  and  DISC 2  buttons simultaneously, and the
key check mode is activated.
5. The message “KEY 0 0 0 0” is displayed.
Each time a button is pressed, the key code number is displayed.
6. Press  GAME EQ  and  DISC 2  buttons simultaneously, and the
key count mode is activated.
7. The message “KEYCNT 0 1” is displayed.
Each time a button is pressed, “KEYCNT 0 1” value increased.
However, once a button is pressed, it is no longer taken into
account.
8. Press  GAME EQ  and  DISC 2  buttons simultaneously, and the
head phone detect mode is activated.
9. The message “H_P OFF” is displayed when a headphone jack
is not inserted.
“H_P ON ” is displayed when a headphone jack is inserted.
10. Press  GAME EQ  and  DISC 2  buttons simultaneously, and the
volume control detect mode is activated.
11. The message “VOLUME FLAT” is displayed.
“VOLUME UP” is displayed if rotating VOLUME knob
clockwise, or “VOLUME DOWN” is displayed if rotating
counterclockwise.
12. To exit from the GC test mode after the volume control detect
mode, press  GAME EQ  and  DISC 2  buttons simultaneously.
[Version and Destination Display Mode]
• The version or destination is displayed.
Procedure:
1. Press  ?/1  button to turn the set ON.
2. To enter the test mode, press the three buttons  x ,  GAME EQ
and  MOVIE EQ  simultaneously.
3. The destination is displayed.
4. Press  STOP  and  GROOVE  buttons simultaneously.
5. The version is displayed.
6. To exit from this mode, press  ?/1  button to turn the set OFF.
[CD Service Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. To enter the test mode, press three buttons x ,  GAME EQ ,
and  OPEN/CLOSE  simultaneously.
4. The CD service mode is selected.
5. With the CD in stop status, press  
 button  to move the pickup
to outside track, or press  
 button to inside track.
6. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press  ?/1  button to turn the set OFF.
Note:
 • Always move the pickup to most inside track when exiting from
this mode.  Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be
chipped.
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