32
DDJ-RZX
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Input an audio signal to any of the input
connectors. Or have an audio signal output by
performing OSC SAMPLER[SINE], etc.
Remove the “LCD Assy and the rest
(DNF1983)” .
Yes
Replace the MUTE transistor in JACB Assy if
there is no defect by confirming the defective
area of MUTE transistor and peripheral circuits.
Replace the defective device by confirming
the area where the signal is not continuous
inside the JACB Assy.
Yes
Is the audio signal input to the
output section of the MAIN Assy?
“ ”
Yes
No
No
Replace the DAC (IC3901) if there is no defect
by confirming the defective area of DAC and
peripheral circuits.
Is the audio signal not continuous
between input and output of the MUTE
transistor of JACB Assy?
“ ”
No audio signals are output from the
BOOTH connector.
Confirmation the BOOTH
Input an audio signal to any of the input
connectors. Or have an audio signal output by
performing OSC SAMPLER[SINE], etc.
Yes
Replace the MUTE transistor in HPJK Assy if
there is no defect by confirming the defective
area of MUTE transistor and peripheral circuits.
Replace the defective device by confirming
the area where the signal is not continuous
inside the HPJK Assy.
Is the audio signal input to the
output section of the MAIN Assy?
“ ”
Yes
No
No
Replace the DAC (IC4501) if there is no defect
by confirming the defective area of DAC and
peripheral circuits.
Is the audio signal not continuous
between input and output of the MUTE
transistor of HPJK Assy?
“ ”
1-8
1-9
1-14
1-15
7-3
7-5
No audio signals are output from the
PHONE connectors.
Confirmation the PHONE
Ch 1: IC3901_ pin 12 (BDA)
Ch 2: IC3901_ pin 11 (BDAC_OUT_L-)
V: 500 mV/div. H: 500 us/div.
Ch 1
Ch 2
BOOTH OUT
1-8
Ch 1: CN3701_ pin 3 ()
Ch 2: CN3701_ pin 5 (BOOTH_L-)
V: 500 mV/div. H: 500 us/div.
Ch 1
Ch 2
BOOTH OUT
1-9
Ch 1: R6529 (BOOTH_L_HOT)
Ch 2: R6532 (BOOTH_L_COLD)
V: 500 mV/div. H: 500 us/div.
Ch 1
BOOTH OUT
7-3
