16
CDJ-3000
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5.2 TROUBLESHOOTING
Contents
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No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
1
Power supply
malfunction is
detected
Each Assy
The power supply malfunction has been
detected, and it is in a shutdown state.
Confirm the each circuit in "5.4 VOLTAGE
MONITORING CIRCUIT"
+
This state is kept until IC7202 (PANEL
CPU) is reset.
5.4 VOLTAGE
MONITORING
CIRCUIT
4.3 POWER BLOCK
DIAGRAM
4.3 POWER BLOCK
DIAGRAM
1
SW POWER
SUPPLY has
defect
SW POWER SUPPLY
If not confirmed, replace SW POWER SUPPLY.
2
Power supply
circuit have defect
MAIN Assy
Confirm that there is the signal of V+3R3E
(PANEL CPU Power) while the power cord is
plugged in.
Confirm that pin 5 of CN2 on SW POWER
SUPPLY is 12 V while the power cord is
plugged in.
If not confirmed, confirm the peripheral circuit of
IC1003 (DC/DC CONVERTER) and repair the
defective soldering if found. If not confirmed,
replace MAIN Assy.
3
Power switch
have defect
AUDB Assy
Confirm the circuit between S5001 (Power
switch) on AUDB Assy and IC7202 (PANEL
CPU) on PNLB Assy.
Repair defective soldering and connection if found.
If the signal does not change from H to L when
Power switch is turned from OFF to ON, replace
the switch.
4
PANEL CPU or
peripheral circuit
have defect
PNLB Assy
Confirm that the signal of pin 35 (EUP_CTRL) of
IC7202 (PANEL CPU) on PNLB Assy changes to
H when Power switch is turned to ON.
Confirm the peripheral circuit of IC7202 (PANEL
CPU), and repair defective soldering if found.
If not found, replace IC7202 (PANEL CPU).
6
Power supply
circuit for MAIN
CPU has defect
MAIN Assy
Refer to "4.3 POWER BLOCK DIAGRAM" to
confirm that the voltages of IC1201 (V+5D)
and IC1401 (PMIC) are normal.
+
The voltage is designed approximately as
the circuit name. (e.g. V+3R3*
d
3.3 V)
Confirm the peripheral circuit of IC1201 (V+5D)
and IC1401 (PMIC), and repair defective soldering
if found. If not found, replace MAIN Assy.
7
The other power
supply circuits
have defect
Each Assy
Refer to the "4.3 POWER BLOCK DIAGRAM"
to confirm that Power supply circuits except
the above are normal.
Search for defective power circuits, repair the
defective soldering and replace parts if found.
5
SW POWER
SUPPLY or Power
control circuit have
defect
SW POWER SUPPLY Confirm that pin 1 and 2 (V+12TPS, V+12D)
of CN2 on SW POWER SUPPLY is 12 V
when Power switch is turned to ON.
If pin 10 (STBY) of CN2 is 0 V, replace SW POWER
SUPPLY. If it is about 10 to 12 V, confirm the circuit
between pin 35 (EUP_CTRL) of IC7202 (PANEL CPU)
and pin 10 (EUP_CTRL) of CN2.
[1] Startup
[1-1] No startup (Only the SOURCE indicator keeps blinking)
[1-2] No startup (All LEDs and LCD light off including the SOURCE indicator)
Search for defective power circuits, repair the
defective soldering and replace parts if found. If
the parts that are difficult to replace are defective,
the relevant Assy must be replaced.
[1] Startup
[1-1] No startup (Only the SOURCE indicator keeps blinking)
[1-2] No startup (All LEDs and LCD light off including the SOURCE indicator)
[2] LCD display
[2-1] Main LCD does not turn on or the display is abnormal
[2-2] Jog LCD does not turn on or the display is abnormal
[3] LED indication
[3-1] Monochromatic LED does not turn on
[3-2] Full-color LED does not turn on
[4] Operation
[4-1] The rotary encoder is not working
[4-2] The button is not working
[4-3] TEMPO slider is not working
[4-4] TOUCH/BRAKE volume is not working
[4-5] The touch panel is not working
[4-6] The Jog rotation is not detected
[4-7] The Jog touch is not detected
[4-8] Turning the jog makes a strange noise
[4-9] Turning the jog is light
[4-10] Turning the jog is heavy
[4-11] The switching of the Jog touch from ON to OFF is slow
[5] Sound output
[5-1] There is no sound from the analog output jack
[5-2] There is no sound from the digital output jack
[6] Interface
[6-1] It does not recognize the USB flash drive (USB-A)
[6-2] It does not recognize the SD card
[6-3] It does not be recognized the PC (USB-B), or it does not
be recognized from the PC
[6-4] It does not be recognized from the PC (LAN)
[7] EUP
[7-1] It cannot switch to the EUP mode
[7-2] It does not return from the EUP mode
[8] Power supply monitoring
[8-1] Power supply monitoring
