27
CDJ-3000
5
6
7
8
5
6
7
8
A
B
C
D
E
F
MAIN ASSY
JLCD
ASSY
Jog
PNLB ASSY
97
PANEL CPU
V+12DEN
JOGT
LPF
3
After disassembling the JLCD Assy and the COIL2 Assy, be sure to do the calibration of JOG LCD.
(Refet to "6.2 JOG LCD CALIBRATION".)
2
-3 Stack a Barrier (DEC3932) on the Flat cable jumper and screw them together.
In order to perform a diagnosis in this case, you need to disassemble the Jog to the following states.
Case 2 : The procedure for repairing that
the product cannot detect the Jog touch
2
Remove Jog Assy from the Control panel Section. (Refer to Case 1)
3
Disassemble the Jog Assy, and show the diagnostic side of the JLCD Assy.
3
-1 Remove the center Holder (DNK6780) and separate the top and bottom. (Refer to Case 1)
3
-2 Remove the three screws, and separate the touch part. (Refer to Case 1)
If you don't find any problems after confirming so far, disassemble the Jog Assy.
"
Remove the Control panel Section.
(Refer to "7. DISASSEMBLY".)
g
Diagnostic procedure and contents
1
Before disassembling the Jog Assy, confirm that the PNLB Assy side is not defective.
+
PNLB Assy defects can be diagnosed without having to disassemble the Jog Assy.
!
Is the power for touch detection, or V+12DEN supplied?
r
Confirm the 1 pin (12V) of CN1212 on the PLNB Assy.
!
Is the touch detection signal (JOGT) output when you touch the Jog?
r
Confirm if there is a change of voltage from 0.5 V to 2 V at the 2 pin of CN7206 on the PLNB Assy.
!
Is the JOGT signal input to pin 97 of the PANEL CPU (IC7002)?
r
Confirm the CPU directly with a tester or oscilloscope.
!
The Jog touch cannot be detected even though the JOGT signal is input to the pins of the PANEL CPU.
r
Replace the PANEL CPU (IC7002).
