Each Setting And Adjustment; Adjustment; How To Update The Dsp Flash Rom By Playing Back A Cd - Pioneer VSX-94TXH Service Manual

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8. EACH SETTING AND ADJUSTMENT

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8.1 ADJUSTMENT

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• There is no information to be shown in this chapter.

8.2 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD

A
[Purpose]
By referring to this section, rewrite the DSP1 and DSP2 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.
[Tools to be used]
Please use DVD player based on MTK system (DV-270, 370, 373, 575K, 280, 380, 383, etc. ) ,Mitsubishi system (DV-59AVi,
868AVi, S969AVi, 668AVi, etc. ) or Fujitsu system (DV-343, 444, 545, etc.) DO NOT use DVD player based on ST system
(DV-353, 454, 250, 400, 555K, 260, 363, 464, 466, 563, etc. ) The factory confirmed that DVD players based on ST system
cannot send the correct data to the VSX unit using the update disc.
B
You can check the base system of our DVD players on the firmware version list at PSN web (Niis)
• Coaxial cable or Optical cable
• Update disc(CD-R disc)
• Headphone
[Connections]
Connect this unit and a player, as shown in the figure below.
C
[Preparations]
Burn the DSP flash ROM firmware (.wav file) to a CD-R disc using commercially available burning software.
It is necessary to select the writing format to "For music player", not "For PC data".
Note:
Depending on a burning software, data on a CD-R may not be worked for updating the DSP flash ROM.
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If the HDMI indicator does not flash when playing back a update disc, the disc is not able to use for updating.
Burn the DSP flash ROM firmware to a CD-R disc, using other burning software.
[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 updating means the checksum on the flash ROM is OK.
D
If the "OK" indication is not displayed, updating has not been completed.
Note that confirmation with audio check or version check is insufficient for checking if updating has been completed.
If you set the unit to STANDBY OFF without confirming of "OK" indication on the FL display, be sure to perform the updating
procedures again.
[Procedures]
1. Check the versions of the DSP and microcomputer.
Check the versions by referring to "Version indication" in "6.1 SERVICE MODE (P.74)."
2. Connect a CD or DVD player.
E
(1) Connect the CD or DVD player to be used for updating 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 updating with the player.
(2) Set the receiver to normal setting, "Signal Select" to Auto, then check on the Signal Select indicator whether the
input is set to Auto and Digital.
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