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 Power is not
supplied properly. MAI N Assy Check the power voltages of V +3R3_CPU
and V +1R2_CPU) lines.
The MAI N CPU requires two power supply systems.
Check the connections of the power supply lines.
If soldering is improper, resolder it.
—————
3 Loose connection
between the MAI
N
CPU and SD_RAM
MAI N Assy Check the connection between the MAI N
CPU and SD_RAM.
Check the connections between MAI N CPU
(IC10) and SD_RAM (IC10 8 and IC109).
If soldering is improper, resolder it.
—————
4 Loose connections
in the communi-
cation line. MAI N Assy,
TFTB Assy
Check the connections of communication
line between the MAI
N CPU (IC101) and
TFT CPU (IC4001).
If soldering is improper, resolder it. —————
5 The clock is not
properly input. MAI N Assy Check that the frequency at Pin 3 8
(CPU_CLKOUT) of SD_RAM (IC10 8 and
IC109) are approx. 107.9 MHz.
Check the connection of the logic IC (IC10).
If soldering is improper, resolder it. —————
6 Loose connection
between the MAI
N
CPU and SD_RAM
MAI N Assy Check the connection between the MAI N
CPU and SD_RAM.
Check the connections between MAI N CPU
(IC10) and SD_RAM (IC1, 2, 12 and 13).
If soldering is improper, resolder it.
—————
2 Loose connections
in the communi-
cation line. P N LB Assy,
CDCB Assy
Check the connections of communication
line between the PA
N EL CPU (IC 8 003)
and CDC (IC5001).
If soldering is improper, resolder it. —————
3 Defective
CDCB Assy CDCB Assy If the symptom persists after the above
corrections. Replace the IC5001.
If the symptom persists, replace the CDCB Assy. —————
3 The clock is not
properly input. TFTB Assy Check that the frequency at Pin 3 8 (BUSCLK)
of SD_RAM (IC4005) is approx. 9 8 MHz.
Check the connection of the Oscillator (X4002) and
its periphery. If soldering is improper, resolder it. —————
4 The RESET
signal is not
properly input. TFTB Assy,
MAI
N Assy
Check that the signals of the TFT_RST
line is H. Check the connection of the logic IC (IC7).
If soldering is improper, resolder it.
If the signal of the TFT_RST line is L, check the
connection of the logic IC (IC7) and its periphery. —————
5 Loose connection
between the TFT
CPU and FLASH TFTB Assy Check the connection between the TFT
CPU and FLASH. Check the connections between TFT CPU
(IC4001) and FLASH (IC4004).
If soldering is improper, resolder it. —————
6 Loose connection
between the TFT
CPU and SD_RAM TFTB Assy Check the connection between the TFT
CPU and SD_RAM. Check the connections between TFT CPU
(IC4001) and SD_RAM (IC4005).
If soldering is improper, resolder it. —————
1 ————— ————— ————— If it is judged as N G, the CDC (IC5001) does not
work properly or communication between the
PA
N EL CPU (IC 8 003) and CDC (IC5001) is not
established. Proceed as follows:
—————
[12-6] E-7025: CDC DE V ICE ERROR
The CDC device (IC5001) for the needle search pad does not work properly.
1 ————— ————— ————— If it is judged as N G, the MAI N CPU (IC10) or SD_RAM
(IC1, 2, 12 and 13) does not work properly or
communication between the MAI
N CPU (IC10) and
TFT CPU (IC4001) is not established. Proceed as follows:
—————
[12-7] E- 8 709: COMMU N ICATIO N ERROR
Communication between the TFT CPU (IC4001) and MAI N CPU (IC10) is not possible.
1 Loose connection
between the MAI
N
CPU and
AUTH CHIP
MAI N Assy Check the connections of communication
line between the MAI
N CPU and
AUTH CHIP.
Check the connections between MAI N CPU
(IC10) and AUTH CHIP (IC14).
If soldering is improper, resolder it.
—————
[12- 8 ] E-7026: AUTH CHIP ERROR
The Apple authentication chip (IC14) for the needle search pad does not work properly.
7 ————— ————— If the symptom persists after the above
corrections. Replace the TFT CPU (IC4001). —————
7 ————— ————— If the symptom persists after the above
corrections. Replace the MAI N Assy. —————
2 ————— ————— If the symptom persists after the above
corrections. Replace the MAI N Assy. —————
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