VSX-74TXVi
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7.1.9 HOW TO REWRITE THE DSP FLASH ROM BY PLAYING BACK A CD
1. Reset the receiver.
Note:
Note that all the data the receiver retains will be cleared.
(1) Check the versions of the DSP and microcomputer.
Check the versions by referring to "Version indication" in "7.1.1 TEST MODE."
2. Connect a CD or DVD player.
(1) Connect the CD or DVD player to be used for writing to any digital input connector of this unit.
(2) With the INPUT SELECTOR, select the input being used.
3. Check if the digital signal is locked (received).
(1) Play back a stream for writing with the player.
(2) Set the receiver to normal playback, "Signal Select" to Auto, then check on the Signal Select indicator whether the
input is set to Auto and Digital.
[Procedures]
[Connections]
Connect this unit and a player, as shown in the figure below.
[Preparations]
Write the provided DSP program to a CD-R, using commercially available software for writing.
Note:
Depending on the writing format of the commercially available software to be used, data on a CD-R may not be used for DSP
program rewriting. If the HDMI indicator does not flash when the disc is played back in the way indicated in Step 5 below, data
written on the CD-R are not appropriate. To know whether the writing software is OK or not, play back the WMA9Pro stream
stored on the last track of the disc. (Refer to "Troubleshooting" on next section.)
If audio data are normally played back, the disc and the player can be used for rewriting. If audio data are not correctly played
back (with noise, etc.), that writing software is not appropriate. Write the DSP program, using other writing software.
• CD or DVD player that can recognize a CD-R
Note:
List of players that cannot recognize a CD-R
DV-U7 (Pioneer)
DV-S9 (Pioneer)
DVD-S97 (Panasonic)
• Digital coaxial cable or optical cable
• CD-R disc on which a DSP program has been recorded
[Tools to be used]
[Purpose]
[Note]
Do NOT disconnect the AC cords of this unit nor the CD/DVD player while rewriting is in progress.
The "OK" indication displayed after rewriting means the checksum on the flash ROM is OK. If the "OK" indication is not displayed,
rewriting has not been completed.
Note that confirmation with audio check or version check is insufficient for checking if rewriting has been completed.
If you set the unit to STANDBY OFF without confirming if rewriting has been completed correctly, be sure to perform the rewriting
procedures again.
By referring to this section, rewrite the DSP Flash ROM when required. Rewriting is instructed through service information, etc.
By playing back a CD-R on which a DSP program is recorded, using a normal CD player, rewriting is possible.
This unit
CD or DVD player
Digital connection
