Diagnosis; Startup Sequence - PIONEER DJ DJS-1000 Service Manual

5

5. DIAGNOSIS

5.1 STARTUP SEQUENCE

Timimg chart of Power-on,Reset and Muting
Startup Sequence
Power-on/Standby Return
Power
Clock
Hardware Cont. Sig.
Standby State
Software Cont. Sig.(M1)
Software Cont. Sig.(iMX)
At the time of standby return from here
V+12E V+5E
V+3R3E
16MHz
280ms
M1
M1_xRST
boot
PWRSW_xON
Ton0 128ms
V+12SW_CONT
V+12SW
V+12A
V-12A
V+12HP_CONT
V+12HP
V-12HP
6.4ms @3.1V
V+4R2D
V+3VSNVS
3.2ms
PMIC_ON_REQ
3.2ms
V+1R375CORE
3.9ms
V+1R375SOC
2ms
V+1R5DDR
2ms
V+3R3D
4ms
24MHz
18ms
32.768kHz
V+1R8VGEN4
4ms
V+3R3VGEN6
V+2R8VHIGH
M2_xRST
IMX_xRST
DDR_xRST
V+5R1D_CONT
V+5R1D
V+9R6LCD
V-6LCD
V+18LCD
LCD signals
BL control
V+10BL
LAN_xRST
CLK_CONT
22.5792MHz
ADDA_xRST
USBPWR_EN
V+5R2USB
USBPWR_OC
eMMC_xRST
USBHUB_xRST
xMUTE
L_MUTE
FAULT DET
xAC_OFF
5
6
Starting LCD display
Ton1
80ms
28ms
2ms
8ms
Ton2
231ms
Ton2
231ms
24ms
Ton3 165ms
12ms
22.5ms
28ms
17ms
13ms
Ton6
Ton4 1.2s
Ton5
3.7s
Ton5 3.7s (22.5792MHz -> ADDA_xRST :92ms)
Ton5
3.7s
6.2ms
USBA VBUS Current monitoring
(Start as soon as application is started up)
Ton5 3.7s
Voltage monitoring (L=400ms : Abnormal detection)
Starting AC voltage monitoring (L=1ms : AC OFF detection)
6
7
Normal State
Mute canceled
4.8s
Ton7 860ms
Ton8 8.2s
Ton9 19.5s
DJS-1000
7
8
A
B
C
D
E
F
13
8