PIONEER DJ AlphaTheta CDJ-3000 Service Manual page 29

5
Structural Image Diagram
Sheet SW
Jog external form
JLCD ASSY
COIL1 ASSY
COIL2 ASSY
- Diagnosis -
! COIL drive circuit has the defective
r If the voltage on pin 5 of IC7002 (LDO) does not reach 3.3 V, replace the IC7002.
r If the clock on 4 pin of IC7003 (LOGIC) is not 8 MHz, replace X7001 (Resonator) or IC7003.
r If the clock on 8 pin of IC7004 (LOGIC) is not 2 MHz, replace IC7004.
r If the clock on the gate side of Q7003 (FET) is not 2 MHz, replace IC7006 (LOGIC).
r If 2 pin of CN7003 dose not have 2 MHz half-wave waveform, replace Q7003 (FET).
Structural Image Diagram
Sheet SW COIL2 ASSY
! Confirm the signal (JOG_SW) on 2 pin of CN7002
r When the jog is touched, the JOG_SW signal changes from about 0.5 V (touch off) to about 1.5 V (touch on).
If the signal has any problem, replace the JLCD Assy, the COIL2 Assy, and the COIL1 Assy in that order.
[Important] Caution after the repairing
[Important] Caution after the repairing
Refer to "
5
6
Wireless
COIL drive circuit
FET LCX
Wireless
COIL1 ASSY
JLCD ASSY
" in Case1.
CDJ-3000
6
7
FFC
8M
2M
Xtal
GEN.
GEN.
DET.
Reg
Resistor
7
8
PNLB ASSY
PANEL
UCOM
8
A
B
C
D
E
F
29