Test Mode - Sony HCD-S20 Service Manual

HCD-S20
SOFTWARE VERSION
It can confi rm the software version.
Procedure:
1. Press the [ / ] button to turn the power on.
? 1
2. Press the [ ] button to open the disc tray.
Z
3. Press the button on the remote commander as following order.
[CLEAR] → [ ] → [RETURN]
B
(Displayed values in the following fi gure are example)
Screen display
M20F3P15
MCU IC Software
Software version difference
Software Difference
Destination Display
110 – 240V AC area in
F3
E model
Saudi Arabia model
F4
Mexican model
F4
Singapore model
F4
Argentina model
F3
Korean model
F6
Releasing method:
Press the [ ] button to close the disc tray or press the [
Z
to turn the power off.
FACTORY 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 [ / ] button to turn the power on.
? 1
2. Press two buttons of the [
[EQ] on the main unit simultaneously for fi ve seconds.
3. The message "RESET OK is displayed on the fl uorescent indi-
cator tube, then returns to the normal mode.
12
SECTION 3

TEST MODE

MPEG IC
Software version
Specifi cations
FM 50 kHz step, no RDS,
Tuner output level 2.2 dB,
12 hours display
FM 50 kHz step, no RDS,
Tuner output level 4.2 dB,
12 hours display
FM 50 kHz step, no RDS,
Tuner output level 4.2 dB,
12 hours display
FM 50 kHz step, no RDS,
Tuner output level 4.2 dB,
12 hours display
FM 50 kHz step, no RDS,
Tuner output level 2.2 dB,
12 hours display
FM 50 kHz step, no RDS,
Tuner output level 7.2 dB,
12 hours display
/ ] button
? 1
] on the remote commander and
x
TRAY LOCK
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 [ ] button to open the disc tray.
Z
3. Set a disc on the disc tray.
4. Press the [ ] button to close the disc tray.
Z
5. Press two buttons of the [
x
on the main unit simultaneously for fi ve seconds.
6. The message "LOCKED" is displayed on the fluorescent indi-
cator tube and the disc tray is locked.
(Even if pressing the [ ] button, the message "LOCKED" is
Z
displayed on the fluorescent indicator tube and the disc tray is
locked)
Releasing method:
1. Press two buttons of the [
x
on the main unit simultaneously for fi ve seconds.
2. The message "UNLOCKED" is displayed on the fluorescent
indicator tube and the disc tray is unlocked.
PANEL TEST
It can confi rm the fluorescent indicator tube.
Procedure:
1. Press the [ / ] button to turn the power on.
? 1
2. Press two buttons of the [
x
CANCEL] on the main unit simultaneously for fi ve seconds.
3. All segments on the fluorescent indicator tube light up.
Screen display
Releasing method:
Press two buttons of the [ ] on the remote commander and [
x
CANCEL] on the main unit simultaneously for fi ve seconds or
press the [ / ] button to turn the power off.
? 1
] on the remote commander and [
] on the remote commander and [
] on the remote commander and [
]
Z
]
Z
/
x
/
x