Test Mode - Sony HCD-SX7 Service Manual

HCD-SX7/SX7B
Ver. 1.1
1. TEST MODE BY THE MAIN UNIT OPERATION
It operate the test mode by the main unit.
1-1. Cold Reset
It can clears all data including preset data stored in the memory to
initial conditions. Execute this mode when returning the this unit
to the customer.
Procedure:
1. Press the [ @ / 1 ] button to turn the power on.
2. Press two buttons of the [PUSH ENTER] and [
ously for three seconds.
3. The message "All Reset" is displayed on the liquid crystal display
then becomes the standby state.
Screen display
All Reset
1-2. Disc Tray Lock Mode
It can be unable to take sample disc out of disc tray in the shop.
Procedure:
1. Press the [ ] button to turn the power on.
@ / 1
2. Press the [MENU] button, then rotate [– TUNING +
] dial to select the "Function Select" and press the
>
[PUSH ENTER] button, then rotate [– TUNING +
] dial to select the CD function and press the [PUSH EN-
>
TER] button.
3. Press the [ ] button to open the disc tray and set the CD.
Z
4. Press the [ ] button to close the disc tray.
Z
5. Press two buttons of the [BACK] and [
fi ve seconds.
6. The message "LOCKED" is displayed on the liquid crystal
display and the disc tray is locked.
(Even if pressing the [ ] button, the message "LOCKED"
Z
is displayed on the liquid crystal display and the disc tray is
locked)
Screen display
LOCKED
Releasing method:
1. Press two buttons of the [BACK] and [
fi ve seconds
2. The message "UNLOCKED" is displayed on the liquid crystal
display and the disc tray is unlocked.
Screen display
UNLOCKED
32
SECTION 3

TEST MODE

1-3. AM Step Change Mode (SX7: Canadian, Latin
Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
Procedure:
1. Press the [
2. Press the [MENU] button, then rotate [– TUNING +
] simultane-
@ / 1
3. Press the [
4. While pressing the [MENU] button, press the [
5. Either the message "Step 9k" or "Step 10k" appears, select the
.
1-4. Check Version Display
. It can confi rm the MC, CD and NW version.
Note: Please perform this mode in the state where this unit has started
Procedure:
] simultaneously for
@ / 1
1. Press the [
2. Press two buttons of the [
3. It enters the check version display mode, the MC version is
4. Each time [– TUNING +
] simultaneously for
@ / 1
American, Singapore, Argentina, Thai and Indone-
sian models)
@ / 1 ] button to turn the power on.
] dial to select the "Function Select" and press the
>
[PUSH ENTER] button, then rotate [– TUNING +
] dial to select the AM tuner function and press the [PUSH
>
ENTER] button.
] button to turn the power off.
@ / 1
turn the power on.
desired step.
Screen display
Step 9k
or
Step 10k
completely. If it perform in the state where it has not started com-
pletely, it may not be displayed correctly.
] button to turn the power on.
@ / 1
] and [PUSH ENTER] simultane-
Z
ously for three seconds.
displayed on the liquid crystal display.
Screen display
MC
(Displayed values in the above fi gure are example)
.
wise, the display changes CD version and NW version this or-
der, and release from check version display mode.
MC version
MC
CD version
CD 0.010
NW version
NW 21.82
Check version display mode is releasing
(Displayed values in the above fi gure are example)
.
.
] button to
@ / 1
0.37
] dial is turned clock-
>
0.37
SYS SET