Pioneer VSX-321-K-P Service Manual page 53

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17. Select the update file. Press the "FILE" button.
Select "CECCore_ADDSEL(BB)_V***.hex" file to update MCU.
When the update file is selecting, the check box is
automatically on.
18. While holding down the tact switch of the Upgrade Jig,
press STANDBY/ON button.
After 2 or 3seconds, release the tact switch button.
Check to the software virsion of MAIN, HDMI (SUB) and CEC microcomputers
23. Make sure that the main unit is in STANDBY mode.
Press and hold the " ENTER " and " STANDBY/ON " keys, then press the " ENTER "key to display each UCOM version.
Each time the " ENTER "key is pressed, then indications on the FL display change as follows:
"ENTER"
MAIN Ucom
MAIN Xx.xx
24. Turn the unit off.
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6
"ENTER"
SUB Ucom CEC
SUB zzz.zz CEC Vy,yy
"ENTER"
HTP-071
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19. Press the button.
20. Press the button to update the firmware.
Rate of the progression is appeared.
21. Update Finished CEC microcomputer.
If the following messages are displayed, shut the update
program down, and start the update again from step 19.
22. Turn the unit off (STANDBY mode) and unplug the
AC cord. Disconnect the FFC cable.
"ENTER" "ENTER"
DSP Ucom
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A
B
C
D
E
All segments lit.
F
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