22
CDJ-3000
1
2
3
4
A
B
C
D
E
F
1
2
3
4
—
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
1
Format version
Confirm that it is correctly formatted.
[6] Interface
[6-1] It does not recognize the USB flash drive (USB-A)
If not confirm, use a properly formatted (e.g. FAT32)
version.
—
2
USB bus power
supply have
defect
Confirm that the voltage of V+5USB_SSA2
is normal.
+
The voltage is designed approximately as
the circuit name. (e.g. V+3R3*
d
3.3 V)
If not confirmed, confirm IC3001, IC3002 and the
peripheral circuit of these parts and repair the
defective soldering and replace parts if found.
—
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
1
VBUS circuit
from PC have
defect
MAIN Assy
Confirm that pin 4 of IC3601 (LOGIC) is H
while PC is connected.
[6-3] It does not be recognized the PC (USB-B), or it does not be recognized from the PC
If not confirmed, confirm VBUS circuit from
JA3601 (USBB jack) and repair the defective
soldering and replace parts if found.
—
2
USB HUB power
supply have
defect
MAIN Assy
Confirm that the voltage of V+3R3USBHUB
is normal.
+
The voltage is designed approximately as
the circuit name. (e.g. V+3R3*
d
3.3 V)
If not confirmed, confirm IC3604 and the
peripheral circuit of this parts and repair the
defective soldering and replace parts if found.
—
3
USB signal circuit
from MAIN CPU
have defect
MAIN Assy
Confirm the below circuits.
1. From IC1801 (MAIN CPU) to
IC3602 (USB-B HUB)
2. From IC3602 (USB-B HUB) to
JA3601 (USBB jack)
Repair defective solder and defective connections
if found.
—
4
MAIN CPU or
USBHUB have
defect
MAIN Assy
The problem has not improved until the above. If not confirmed, confirm the peripheral circuit of
IC1801 (MAIN CPU) and IC3602 (USB-B HUB),
and repair the defective soldering if found.
If not confirmed, replace MAIN Assy.
—
USBA Assy
3
USB circuit from
MAIN Assy have
defect
Confirm the circuit from IC1801 (MAIN CPU)
to JA4601 (USBA jack).
Repair defective solder and defective connections
if found.
—
Each Assy
4
MAIN CPU has
defect
The problem has not improved until the above. If not confirmed, confirm the peripheral circuit of
IC1801 (MAIN CPU) and repair the defective
soldering if found. If not confirmed, replace
MAIN Assy.
—
MAIN Assy
—
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
1
Format version
Confirm that it is correctly formatted.
[6-2] It does not recognize the SD card
If not confirm, use a properly formatted (e.g. FAT32)
version.
—
2
The detection
signal circuit to
MAIN Assy have
defect
Confirm that the voltage on pin 2 and 4
(SD_xWP, SD_CD) of CN2801 change
according to the state of the SD card.
+
When an SD card is inserted with a write
unlocked state, both pins are L. When an
SD card is inserted with the write lock state,
RekordboxDB will not be loaded. So, an
error is displayed on Main LCD.
Repair defective solder and defective connections
if found.
—
MAIN Assy
3
Card bus power
supply have
defect
Confirm that the voltage of V+3R3D_SD0 is
normal.
+
The voltage is designed approximately as
the circuit name. (e.g. V+3R3*
d
3.3 V)
If not confirmed, confirm IC2801 and the
peripheral circuit of this parts and repair the
defective soldering and replace parts if found.
—
SDCB Assy
4
SD signal circuit
from MAIN Assy
have defect
Confirm the circuit from IC1801 (MAIN CPU)
to CN4702 (SD card slot).
Repair defective solder and defective connections
if found.
—
Each Assy
5
MAIN CPU has
defect
The problem has not improved until the above. If not confirmed, confirm the peripheral circuit of
IC1801 (MAIN CPU) and repair the defective
soldering if found. If not confirmed, replace
MAIN Assy.
—
MAIN Assy
