How To Update The Flash Roms For Various Microcomputers - Pioneer VSX-84TXSi Service Manual
Audio/video multi-channel receiver
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Also See for VSX-84TXSi:
- Operating instructions manual (92 pages) ,
- Service manual (72 pages) ,
- Service manual (72 pages)
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7.1.9 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS
HDMI, MAIN and DSP microcomputer
[Purpose]
Refer to this section when updating of a Flash ROM is required by the service information, etc.
[Tools to be used]
• PC with a serial port
• RS-232C cable (9-pin to 9- or 25-pin, cross)
• Program for updating (ufu.exe)
[Connections]
(HDMI microcomputer)
Connect as indicated in the figure below:
PC
GGF1348
RS-232C
cross cable
(9-pin to 9- or 25-pin)
[Note]
Do NOT disconnect the AC power cords of this unit nor the PC.
[Procedures]
1. Turn off the power to this unit by setting the main volume
level to "---dB."
2. Connect the 232C I/F jigs and the PC, as
indicated in "Connections."
3. (HDMI microcomputer) :
Simultaneously press and hold the VSEL and
about 5 seconds.
(MAIN microcomputer) :
Simultaneously press and hold the VSEL and
about 5 seconds.
(DSP microcomputer) :
Simultaneously press and hold the VSEL and
about 5 seconds.
4. The unit is turned on, and "HDMI DOWNLOAD", "MAIN
DOWNLOAD" or "DSPM DOWNLOAD" is displayed.
5. Double-click on "ufu.exe".
6. Check that "Full" is selected in MODE SELECT.
7. Select the firm ware file with "mot" extension.
8. Select the communication speed.
• Basic speed: 19200
• Data transfer speed: 57600
9. Click on "START" button.
10. (HDMI microcomputer) :
"Completed" is displayed for about 1 minutes in
the"ufu.exe" window.
(MAIN microcomputer), (DSP microcomputer) :
"Completed" is displayed for about 3 minutes in
the"ufu.exe" window.
5
6
Rear side
This unit
FFC
(VDA1681)
Slit for an HDMI
DIGITAL
for downloading
keys for
keys for
keys for
6
7
• RS-232C I/F jig (GGF1348)
• Firmware ("mot" extension)
• 7-pin FFC (VDA1681)
[Connections]
(MAIN microcomputer)
(DSP microcomputer)
Connect as indicated in the figure below:
OUT
PC
(9-pin to 9- or 25-pin)
11. Disconnect then reconnect the AC power cord of the
unit. If the unit is not reset, retry from Step 2.
12. Check the version.
Following the procedures described in
"Version indication" in "7.1.1 TEST MODE," check
that the version has been changed to a new one.
Check that "Full" is selected in MODE SELECT.
Select the communication speed.
• Basic speed: 19200
• Data transfer speed: 57600
VSX-74TXVi
7
8
This unit
RS-232C
cross cable
8
A
B
C
D
E
F
229
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