Pioneer XDJ-RX Service Manual page 28

1
A
No HP output
B
C
The LINE/PHONO audio signal is not output.
D
E
F
28
1
2
The MUTE signal (TP7052) from
the MAIN Assy is "H."
No
The audio signal is
interrupted around the muting
transistors in the MAIN Assy.
No
The audio signal is
interrupted around the muting
transistors in the HPJB Assy.
No
Is switching among DECK, LINE,
and PHONO possible?
No
Are the CH level indicators lit?
No
Check the indication on the
No
LCD if switching between LINE and
PHONO is properly made.
Yes
Are the waveforms detected at Pins 16,
20 of CN5101 inthe JACK1 Assy?
Are the waveforms detected at Pins 1,
4 of CN5201 inthe JACK2 Assy?
No
Check if SW_IN1, SW_IN2 operates
properly, referring to "10.46 WAVEFORMS
h: Audio INPUT/SW AMP switching."
Operates properly.
Yes
A
XDJ-RX
2
3
Muting is activated. The MUTE circuit in the
Yes
MAIN Assy is in failure.
Replace the MAIN Assy.
The muting transistors in the MAIN Assy are
Yes
defective, which disables audio signal output.
Replace Q7201 and Q7206 in the MAIN Assy.
The muting transistors in the HPJB Assy are
Yes
defective, which disables audio signal output.
Replace Q5901 and Q5902 in the HPJB Assy.
Check Pins 3 and 5 of JP5901 in the HPJB
Assy.
If an audio waveform cannot be detected,
check the connecting cable. If the cable is
OK, the audio circuit in the MAIN Assy may
be in failure. Replace the MAIN Assy.
If an audio waveform is detected, check
connections in the HPJB Assy.
Yes
See "No operation with keys (switches)."
The LINE/PHONO input circuits are normal.
See also "No MASTER output" and "No HP
Yes
output."
If the problem is not resolved after the above
corrections, the MAIN Assy may be in failure.
Replace it.
Check the connections between the JAC1,
JACK2 and MAIN Assys.
Yes
If the connections are OK, then audio data
are not input to I.MX. As this indicates that
the MAIN Assy is in failure, replace it.
Check for a point where the audio signal is
interrupted:
Channel 1: Check the periphery of IC5101,
and IC5102. If they are OK, then replace the
OP amplifiers (IC5101and IC5102 in the
JAC1 Assy).
Channel 2: Check the periphery of IC5201,
and IC5202. If they are OK, then replace the
OP amplifiers (IC5201and IC5202 in the
JAC2 Assy).
Check the connection between the switch in
No
the JACK1, JACK2 Assemblies and the
MAIN Assy.
Check if S5101 and S5201 can be switched.
3
4
4