Test Mode - Sony HCD-HDX275 Service Manual

HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
Note: Incorrect operations may be performed if the test mode is not
entered properly. In this case, press the [ ? / 1 ] button to turn the
power off, and retry to enter the test mode.
COLD RESET
The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customers.
Procedure:
1. Press the [ / ] button to turn the power on.
? 1
2. Press three buttons [ ], [
s A
3. When this button is operated, display as "COLD RESET" for
a while and all of the settings are reset.
PANEL TEST MODE
This mode is used to check the software version, FL, LED and
KEY.
2-1. Display Test Mode
Procedure 1:
1. Press the [ / ] button to turn the power on.
? 1
2. Press three buttons [ ], [
S l
3. When the display test mode is activated, all segments are
turned on.
4. To exit from this mode, press three buttons [
simultaneously.
2-2. Version Test Mode
Procedure 1:
1. When the display test mode is activated, press the [
and "DCR2" is displayed, the version test mode is activated.
2. Whenever the [ ] button is pressed, the display changes in
l
order of "DCR2" (model name) → "NA" (destination) → MC
→ SYS → UI → DVD → CDMA → CDMB → ST → TA →
DSP → TM → CLA → CEC → SAIR → "DCR2" (model
name).
Note: Model name/destination is different according to model.
3. Press the [ ] button and the date of the software production
L
is displayed.
4. Press the [ ] button again and the version is displayed.
L
5. To exit from this mode, press three buttons [
simultaneously.
2-3. Key Test Mode
Procedure 1:
1. When the display test mode is activated, press the [
to select the key test mode.
2. To enter the KEY test mode, the fl uorescent indicator displays
"K0 V0". Each time an another button is pressed, "KEY" value
increases. However, once a button is pressed, it is no longer
taken into account. When all keys are pressed correctly, "K13
V0" is displayed.
3. When the [VOLUME] dial is turned in the direction of (+),
"V0" is changed to "V1", then ... "V9".
When the [VOLUME] dial is turned in the direction of (–),
"V0" is changed to "V9", then ... "V1".
4. To exit from this mode, press three buttons [
simultaneously.
DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the [ / ] button to turn the set on.
? 1
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the [ ] button and the [
s
seconds.
5. The message "LOCKED" is displayed and the tray is locked.
SECTION 4

TEST MODE

] and [ / ] simultaneously.
? 1
] and [ ] simultaneously.
A
], [ ] and [
S l
] button
l
], [ ] and [
S l
] button,
H
], [ ] and [
S l
] button simultaneously for fi ve
A
Releasing Procedure :
1. Press the [ ] button and the [
s
seconds again.
2. The message "UNLOCKED" is displayed and the tray is un-
locked.
Note: When "LOCKED" is displayed, the tray lock is not released by
turning power on/off with the [ ? / 1 ] button.
DVD SHIP MODE
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the [ / ] button to turn the set on.
? 1
2. Press the [FUNCTION] button to set the function "DVD".
3. Remove all discs, and then press two buttons [
simultaneously.
4. After a message "MECHA LOCK" h "UNPLAG" is dis-
played on the fl uorescent indicator tube, pull out the AC plug.
5. To exit from this mode, press the [
on.
AM STEP CHANGE
A step of AM channels can be changed over between 9 kHz and
10 kHz.
]
Procedure:
A
1. Press the [ / ] button to turn the set ON.
? 1
2. Press the [FUNCTION] button to set the function "TUNER
AM".
3. Press the [ / ] button to turn the set OFF.
? 1
4. Press two buttons [
play of fl uorescent indicator tube changes to "AM 9k STEP" or
"AM 10k STEP", and thus the channel step is changed over.
PRODUCT OUT
This mode moves the optical pick-up to the position durable to vi-
bration and clears all data including preset data stored in the RAM
to initial conditions. Use this mode when returning the set to the
customer after repair.
Procedure:
1. Press the [ / ] button to turn the power on.
? 1
]
2. Press the [FUNCTION] button to set the function "DVD".
A
3. Remove all discs, and then press three buttons [
[ / ] simultaneously.
? 1
4. After the "STANDBY" blinking display fi nishes, the message
"MECHA LOCK" h "UNPLAG" is displayed on the fl uo-
rescent indicator tube disconnect the AC power plug, then the
ship mode is set.
]
A
] button simultaneously for fi ve
A
H
/ ] button to turn the set
? 1
] and [ / ] simultaneously, and the dis-
L ? 1
L
] and [ / ]
? 1
], [ ] and
A
23