20
CDJ-3000
1
2
3
4
A
B
C
D
E
F
1
2
3
4
—
1
Power supply
circuit have
defect
If not confirmed, search for defective power
circuits, repair the defective soldering and replace
parts if found.
[4-7] The Jog touch is not detected
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
Confirm that V+12DEN is output.
MAIN Assy
—
1
Jog brake has
defect
Wipe Jog dial (DNK6777) clean with ethanol.
Replace Brake.
[4-8] Turning the jog makes a strange noise
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
Confirm that the brake (DED1189) is not
peeling.
JOG section
—
2
Jog roller has
defect
Remove foreign materials or replace Roller.
Confirm that there are no foreign materials
on Roller (DXB2178) or that Roller (DXB2178)
is not deformed.
JOG section
1
Jog adjustment
or Jog assembly
is incorrect
- If it is out of specification, refer to "8.4 JOG
DIAL ROTATION LOAD ADJUSTMENT" for
calibration. Wipe and reassemble Jog dial
(DNK6777) as necessary.
- Apply grease to the shaft if it is low in grease.
[4-9] Turning the jog is light
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
Refer to "8.4 JOG DIAL ROTATION LOAD
ADJUSTMENT" to confirm that the jog load
value is within the specification.
JOG section
—
2
JOGT circuit
have defect
If confirmed, confirm that the signal reaches the
panel microcomputer. If not confirmed, confirm
the signal circuit. If the signal is reaching the pins
of PANEL CPU but the touch operation cannot be
detected, replace PANEL CPU.
If not confirmed, disassemble Jog Assy and move
on to the internal checking.
Confirm that the signal is input to pin 2
(JOGT) of CN7206 when the jog is touched.
PNLB Assy
—
3
The sensor has
defect
Install Sensor correctly. Replace Sensor if it has
dirt, damage, or moisture in it.
Confirm that Sensor is properly installed
and that Sensor is not dirty, damaged or
contaminated with water.
Sensor (Sheet switch)
—
4
COIL2 has defect
Repair defective solder and defective connections
if found.
Confirm the circuit from Sensor to COIL2
Assy, and confirm that there is no defective
soldering on the parts of COIL2 Assy.
COIL2 Assy
—
6
JLCD has defect
If not confirmed, replace the parts in the order of
JLCD Assy, COIL2 Assy and COIL1 Assy.
Confirm that the voltage of pin 2 (JOG_SW) of
CN7002 change the following state.
1. It changes to about 0.5 V when you stop
touching Jog
2. It changes to about 1.5 V when you touch Jog
JLCD Assy
5
COIL drive circuit
have defect
- Repair the connection between COIL1 Assy and
JLCD Assy if there are connection defects.
- Repair the defective soldering on JLCD Assy, if found.
- If pin 5 of IC7002 (LDO) is not 3.3 V, replace IC7002.
- If pin 4 of IC7003 (LOGIC) is not 8 MHz, replace
X7001 (Resonator) or IC7003.
- If pin 8 of IC7004 (LOGIC) is not 2 MHz, replace
IC7004.
- If the gate of Q7003 (FET) is not 2 MHz, replace
IC7006 (LOGIC).
- If pin 2 of CN7003 is not Half-wave waveform of
2 MHz, replace Q7003 (FET).
Confirm the peripheral circuits of COIL1 Assy
and JLCD Assy.
JLCD Assy
10.45 WAVEFORMS
4
8.4 JOG DIAL
ROTATION
LOAD
ADJUSTMENT
8.4 JOG DIAL
ROTATION
LOAD
ADJUSTMENT
1
Poor Jog
adjustment
If it is out of specification, refer to "8.4 JOG DIAL
ROTATION LOAD ADJUSTMENT" for calibration.
Wipe and reassemble Jog dial (DNK6777) as
necessary.
[4-10] Turning the jog is heavy
No.
Cause
Diagnostics Point
Item to be Confirmed
Corrective Action
Reference
Refer to "8.4 JOG DIAL ROTATION LOAD
ADJUSTMENT" to confirm that the jog load
value is within the specification.
JOG section
