33
DDJ-RZX
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Yes
Refer to “No audio signals are output from the
MASTER 1/ MASTER 2 connectors.”
MAIN CPU or DSP (IC2601 and IC3101)
is defective.
Replace the MAIN Assy.
Is the DDJ-RZX unit recognized
by the PC?
Yes
No
No
Defect of the USB HUB1 and HUB2
(IC4901, IC4951) in the USB line or
MAIN CPU (IC1701).
Rpelace MAIN Assy
Is the input of the CD or LINE
functioning?
Can not be USB audio input and output.
Confirmation the USB audio
Input an audio signal to the CH input
connector in question.
Are the channel level indicators lit?
Yes
Yes
Yes
DSP (IC2601) and peripheral circuits is defective.
Replace the MAIN Assy.
Is the objective CH is CH3 or CH4?
No
Is the signal not input to both the
LINE and PHONO?
No audio signals from the CH audio input
connectors are available.
Confirmation the CH input
Remove the “LCD Assy and the rest
(DNF1983)” .
No
Yes
Ch 1: IC4501_ pin 11
V: 1 V/div. H: 500 us/div.
Ch 1
HP OUT
1-14
Ch 1: CN4501_pin 4 (TP4505)
V: 1 V/div. H: 500 us/div.
Ch 1
HP_L
1-15
Ch 1: R8101
V: 1 V/div. H: 500 us/div.
Ch 1
HP OUT
7-5