Pioneer CDJ-400 Service Manual page 28

1
6.2.3 Version Check mode
This is the mode for checking the software version of each microcomputer.
A
POWER ON
Hold the RELOOP/EXIT key
pressed for about 10 seconds.
B
• Audio DSP and FPGA are the processors for audio processing and control of each signal, respectively, and operate
independently from the microcomputer for the Player section. However, their programs are stored in the flash ROM for the
microcomputer for the Player section and are transferred from the flash ROM to each processor each time the unit is turned
on.
• The version of the main microcomputer is also displayed in the TEMPO display when the unit enters Operation Check mode
for the Player section, mentioned above.
C
6.2.4 Updating Mode
D
Updating starts, and the
updating progress is
displayed in the PLAYING
ADDRESS section.
E
Note: NEVER turn the unit off, unplug the power cord, or remove the disc or USB memory stick before updating is completed.
F
28
1
2
RELOOP/EXIT
Version Check Mode
(Ver. 1.00 for the first
edition).
POWER
The unit enters Updating mode
POWER ON
When updating is completed
COMP L T
2
3
CALL
Toggle operation
FL Display
DOWN L A O D
FL Display
E E
CDJ-400
3
4
1 Ver.
1.00
Version of the microcomputer
for the Player section (main
microcomputer)
↓
2 disp
1.00
Version of the microcomputer
for the Display section
↓
3 DSP 1.00
Version of the audio DSP
↓
4 FPGA 1.00
Version of the FPGA
USB memory stick
with the updating file
(FAT format)
Disc for updating or
USB memory stick
(FAT format)
Disc for updating or
POWER
POWER OFF
4