Pioneer CDJ-2000NXS, Service Manual

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CDJ-2000NXS
1 2 3 4
A
B
C
D
E
F
1 2 3 4
[2-2] An LED does not light.
1 Defective SW P N LB Assy Check if there is loose connection on the
signal line from the PA
N EL CPU (IC 8 003)
up to the SW.
If there is no loose connection and if the signal
does not become L when the SW is pressed,
that SW is defective. Replace it. —————
2 Defective PA N EL
CPU
P N LB Assy If the symptom persists after the above
corrections. Check the connection of the PA N EL CPU
(IC 8 003). If the connection is OK, the port may
be damaged. Replace it.
—————
2 Defective PA N EL
CPU
P N LB Assy If the symptom persists after the above
corrections. Check the connection of the PA N EL CPU
(IC 8 003). If the connection is OK, the port may
be damaged. Replace it.
—————
2 Defective PA N EL
CPU
P N LB Assy If the symptom persists after the above
corrections. Check the connection of the PA N EL CPU
(IC 8 003). If the connection is OK, the port may
be damaged. Replace it.
—————
1 Defective SW P N LB Assy Check if there is loose connection on the
signal line from the PA
N EL CPU (IC 8 003)
up to the SW.
If other SWs connected to the same port on the
PA
N EL CPU (IC 8 003) function properly and if
connection is properly made, replace the SW.
—————
2 Defective
MAI
N CPU
MAI N Assy If the symptom persists after the above
corrections. The MAI N CPU (IC10) is defective.
Replace the MAI N Assy.
—————
1 Defective SW SDSW Assy,
MAI
N Assy
Check if there is loose connection on the
signal line from the MAI
N CPU (IC10)
up to the SW.
If there is no loose connection and if the signal
does not become L when the SW is pressed,
that SW is defective. Replace it. —————
1 Defective
Tempo slider SLDB Assy,
P
N LB Assy
Check the waveform of signals on the
signal line (ADCT, ADI
N ).
If the voltage on the signal line (ADI N ) fluctuates
within the range of 0–3.3 V , with 1.65 V at the
center, go to Step 2. If it does not, the Tempo
slider (
V R 8 701) is defective. Replace it.
—————
2 Defective PA N EL
CPU
P N LB Assy If the symptom persists after the above
corrections. Check the connection of the PA N EL CPU
(IC 8 003). If the connection is OK, the port may
be damaged. Replace it.
—————
1 Defective V OL P N LB Assy Check the connections of and waveforms
of signals on the signal lines (TCH/BRK)
and (RELS/ST). If the voltage on the signal line (TCH/BRK and
RELS/ST) fluctuates within the range of 0–3.3
V ,
go to Step 3. If it does not, the TOUCH/BRAKE
(
V R 8 001) and RELEASE/START ( V R 8 002) are
loosely connected or defective. Connect them
properly or replace them.
—————
1 Defective LEDs LED in question Check that soldering at the LED in question
is properly made. If it is OK, check that the
forward voltage (2.2 - 2.7
V ) is present at
both ends of the LED.
Correct any defective soldering.
If the forward voltage is present, then the LED
itself is defective. Replace it. —————
2 Defective drive
circuit Transistor in
question Check that the control signal for the LED in
question is output from the PA
N EL CPU (IC 8 003).
If the LED does not light even if the control signal is
output properly, then the transistor is defective. Replace it. —————
3 Defective PA N EL
CPU
P N LB Assy If the symptom persists after the above
corrections. Check the connection between the PA N EL CPU
(IC 8 003) and the LED in question. If the connection
is OK, the port may be damaged. Replace it.
—————
[3] Operations (Keys/variable controls/JOG)
[3-1] N o key functions.
[3-2] V ariable controls not controllable
As operations of all keys, variable controls, and JOG dial can be checked in Service mode, it is recommended to check operations of
those controls in Service mode before proceeding to the subsequent checks. (For details, refer to 6. SER
V ICE MODE.)
The PLAY, CUE, AUTO BEAT LOOP, BEAT SELECT, RE V , LOOP I N , LOOP OUT, or RELOOP key does not function (direct input).
Other keys (except for the USB STOP key) do not function. (Because of A/D input, multiple SWs are connected to the same port on the PA N EL CPU.
The USB STOP key does not function. (The signal from the USB STOP key is input to the MAI N CPU.)
Tempo slider not controllable
TOUCH/BRAKE and RELEASE/START not controllable
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference
No. Cause Diagnostics Point Item to be Checked Corrective Action Reference