FIRMWARE UPDATE [Click on images to Enlarge]
When the following parts are replaced, the firmware must be updated to the latest version.
- DIGITAL P.C.B.
- Microprocessor (IC221, DIGITAL P.C.B)
CONFIRMATION OF SOFTWARE VERSION CHECKSUM
- Before 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.
- When the firmware version is different from written one after updating, perform the updating procedure again from the beginning.
INITIALIZING THE BACK-UP IC
- 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.
- Select “24. PRESET RSRV”, press the (Power) key of this unit to turn off the power once and turn on the power again. Then the back-up IC is initialized.
REQUIRED TOOLS
- 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.
CONNECTION
Connect this unit and DVD/CD player as shown
below.
EXAMPLE OF CONNECTION BETWEEN DIGITAL "OPTICAL" JACKS
EXAMPLE OF CONNECTION BETWEEN DIGITAL "COAXIAL" JACKS
OPERATION PROCEDURE
- While pressing the “INFO” key of this unit, connect the power cable of this unit to the AC outlet.
- The FIRMWARE UPDATE mode is activated and “CDDA Upgrader” is displayed.
- Play the firmware CD on the DVD/CD player. Writing of the firmware starts automatically.
- When writing of the firmware is completed, “Update Success”, “Please...” and “Power off!!” are displayed repeatedly.
- When the version of the firmware to be written is the same as the one existing in this unit, “Same Version”, “Please...” and “Power off!!” are displayed repeatedly. (Updating is not necessary.)
- 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.
- Press the “ ” (Power) key of this unit to turn off the power.
- Eject the firmware CD from the DVD/CD player.
- 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”)
SELF DIAGNOSTIC FUNCTION
- This unit has self-diagnostic functions that are intended for inspection, measurement and location of faulty point.
- There are 26 main menu items, each of which has sub-menu items.
- Listed in the table below are main menu items and sub-menu items.
- Note that not all menu items listed will apply to the models covered in this manual.
STARTING SELF-DIAGNOSTIC FUNCTION
- While pressing the “TONE CONTROL” and “STRAIGHT” keys of this unit as shown in the figure below, press the (Power) key of this unit to turn on the power.
- The self-diagnostic function mode is activated.
- If the protection function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current detect function will be disabled.)
- While pressing the “TONE CONTROL” and “STRAIGHT” keys as shown in the figure above, press the “” (Power) key to turn on the power and keep pressing those 2 keys and the (Power) key for 3 seconds or longer.
- The self-diagnostic function mode is activated with the protection functions disabled.
- In this mode, the “SLEEP” segment of the FL display of this unit flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled.
CAUTION!
Using this product with the protection function
disabled may cause further damage to this unit. Use special care for this point
when using this mode.
CANCELLING SELF DIAGNOSTIC FUNCTION
- Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No.24. (Memory initialization inhibited or Memory initialized).
- In order to keep the user memory preserved, be sure to select PRESET INHIBITED (Memory initialization inhibited).
- Press the “ ” (Power) key of this unit to turn off the power.
Display provided for self diagnostic mode: BY NEXT post.
