DAV-X1G, HCD-X1G - Sony Audio Service Manual (repair manual). Page 17

17

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. Set to the standby mode.
2. Press three buttons of [FUNCTION], [VOLUME --] and

I

/1

simultaneously.

3. The message “COLD RESET“ is displayed on the fluorescent

indicator tube, then becomes standby mode.

This mode is used to check the fluorescent indicator tube, LED,
model, destination, software version and key.
Procedure:

1. Press three buttons of

x

,  [FUNCTION]  and  [VOLUME +]

simultaneously.

2. All LEDs and segments in fluorescent indicator tube are lighted

up.

3. When you want to enter the software version display mode,

press the [VOLUME --]. The model name is displayed.

4. Each time [VOLUME --] is pressed, the display changes from

destination, MC version, SYS version, UI version, DVD
version, ST version, TA version, TM version in this order, and
returns to the model name display.

5. When [FUNCTION] button is pressed while the version numbers

are being displayed except model name and destination, the
date of the software creation appear. When [FUNCTION] button
is pressed again, the display returns to the software version
display. When [VOLUME --] is pressed while the date of the
software creation is being displayed, the date of the software
creation is displayed in the same order of software version
display.

6. Press the

N

button, the key check mode is activated.

7. In the key check mode, the fluorescent indicator tube displays

“K 0”. Each time a button is pressed, “K 0” value increases.
However, once a button has been pressed, it is no longer taken
into account.

8. To release from this mode, press three buttons in the same

manner as step 1 or disconnect the power cord.

This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:

1. Press the  

I

/1

  button to turn the power on.

2. Press the [FUNCTION] button to select the “DVD”.
3. Press two buttons

x

and  

I/

1

simultaneously.

4. The message “MECHA LOCK” is displayed on the fluorescent

indicator tube and the ship mode is set.

This mode moves the optical pick-up to the position durable to
vibration 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. Set the DVD service mode. (See page 18)
2. Press the [4] key of the remote commander, and set the “Version

Information”.

3. Press the [DVD MENU] key of the remote commander.
4. Press the [CLEAR] key of the remote commander, the message

“Initialize all data” t  “Complete” are displayed on the
fluorescent indicator tube.

5. Press the

I/

1

button to turn the power off.

6. Press the  

I

/1

  button to turn the power on.

7. Press the [FUNCTION] button to select the “DVD”.
8. Press three buttons of [VOLUME --],

Z

and

I/

1

simultaneously.

9. After the “STANDBY” blinking display finish, the message

“MECHA LOCK” is displayed on the fluorescent indicator
tube and the ship mode is set.

1. Press the

I/

1

button to turn the power on.

2. Press three buttons of

x

,

N

and [FUNCTION] simultaneously.

3. The message “RAM OK” (IC507 on the MAIN board is

normal) or “RAM NG” (IC507 on the MAIN board is
abnormal) will be displayed on the fluorescent indicator tube.