10
DDJ-RB
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5. DIAGNOSIS
5.1 POWER ON SEQUENCE
Operation clock setting: 144 MHz
Power ON
Yes
No
Mute: ON
Update mode
Utility setting mode
Starting opening indication
Service mode
1
Version check mode
Check mode of the buttons,
knobs, etc.
Factory reset mode
Voltage value display mode
Voltage value fluctuation
range check mode
Power failure monitoring
Power voltage monitoring
Detection of change in
operating elements
USB transmission
(sending operating element
information, MIDI/HID)
USB reception
(reception and indication of
LED display data)
Audio control
Service mode
2
Measurement mode of the
load of JOG dial
Photo interrupter
check mode
Peripheral device power: ON
Loading the program from
FLASH to RAM
Start-up
Start-up of each task
Initial settings of related port
Related register/
RAM returns to a default
Generation of tasks Start-up
*In the order of
start-up
*To normal main
loop processing
Update
mode ?
Operation mode
judgment
Start-up of real time OS
Oscillation of
peripheral module clock starts
Power supply control task
LED control task
KEY input control task
AD input control task
LED/KEY scan control task
JOG input control task
USB control task
DMA control task
Serial FLASH control task
DAC control task
Audio control task
MIDI control task
Service mode control task
System control task
ENCODER control task
Illumination control task
Demo mode control task
Customized setting mode
Normal mode
