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When the following parts are replaced, the firmware must be updated to the latest version.

DIGITAL P.C.B.

IC243 on DIGITAL P.C.B.

■ UPDATING FIRMWARE

●  Confirmation of firmware version and checksumBefore and after updating the firmware, check the firmware version and checksum by using the self-diagnostic

function menu.

Start up the self-diagnostic function and select “25. ROM VER/SUM/PORT” menu.

Using the sub-menu, have the firmware version and checksum displayed, and note them down.

 (See “SELF-DIAGNOSTIC FUNCTION”)

*  When the firmware version is different from written one after updating, perform the updating procedure again from

the beginning.

●  Initializing the back-up IC (EEPROM: IC222 on DIGITAL P.C.B.)

After updating the firmware, the back-up IC MUST be initialized by the following procedure to have proper

memorization of the set up information (soundfield parameters, system memory and tuner presetting, etc.).

Start up the self-diagnostic function and select “24. FACTORY PRESET” menu. (See “SELF-DIAGNOSTIC FUNCTION”)

Select “24. PRESET RSRV”, press the “ ” (Power) key to turn off the power once and turn on the power again. Then

the back-up IC is initialized.

●  Required Tools

• BD, DVD or CD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack)

• Optical cable (when OPTICAL jack is used)

• Digital audio pin cable (when COAXIAL jack is used)

• Firmware CD

*  Download the latest firmware from the specified download source and create the firmware CD.

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Digital audio pin cable

BD/DVD/CD player

This unit

Optical cable

BD/DVD/CD player

This unit

●  Connection

Connect this unit and BD/DVD/CD player as shown below. (Fig. 1)

Fig. 1

Example of connection between digital OPTICAL jacks

Example of connection between digital COAXIAL jacks

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"INFO" key

C D D A U p g r a d e r

Display

X X X X X X X X X X U p d a t e S u c c e s s

P l e a s e . . .

P o w e r o f f ! !

Writing is started Writing is completed

X X X X X X  : Received data

Fig. 2

●  Operation Procedures

1. While pressing the “INFO” key, connect the power cable to the AC outlet. (Fig. 2)

The FIRMWARE UPDATE mode is activated and “CDDA Upgrader” is displayed. (Fig. 2)

Fig. 3

2. Play the firmware CD on the BD/DVD/CD player. Writing of the firmware starts automatically. (Fig. 3)

3. When writing of the firmware is completed, “Update Success”, “Please...” and “Power off!!” are displayed

repeatedly. (Fig. 3)

*  If the display remains unchanged for more than 10 seconds after starting the firmware CD play procedure,

perform the firmware CD play procedure again from the beginning.

If “FILE CORRUPTED” is displayed after “Address:XXXXXX”, make sure that the written data is not corrupted

and perform Steps 1 to 7 of “Operation Procedures” again.If “Upgrade Failed” is displayed, perform “operation procedures” again from the beginning.

4. Press the “ ” (Power) key to turn off the power.

5. Eject the firmware CD from the BD/DVD/CD player.

6. Start up the self-diagnostic function and check that the firmware version and checksum are the same as written

ones. (See “Confirmation of firmware version and checksum”)

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