36
DJM-900NXS
1
2
3
4
A
B
C
D
E
F
1
2
3
4
[3-6] No signal is output from the DIGITAL MASTER OUT connector.
5
MAI
N
Assy
IC3406
HP_L1/HP_L2
HP_R1/HP_R2
Check the audio signals input to and output
from IC3406.
• If a signal is interrupted at the periphery of
IC3406, IC3406 or peripheral parts must be
improperly soldered or defective.
• If no signal is input to IC3406, go to [6].
6
MAI
N
Assy
IC3405
HP_L+/L-/L1
HP_R+/R-/R1
Check the audio signals input to and output
from IC3405.
• If a signal is interrupted at the periphery of
IC3405, IC3405 or peripheral parts must be
improperly soldered or defective.
• If no signal is input to IC3405, go to [7].
7
MAI
N
Assy
IC3404-3 pin
Check that a signal is supplied to the
ADAT_HP.
• If no signal is found, DSP(IC701) must be
improperly soldered or defective.
• If a signal is found, go to [8].
8
MAI
N
Assy
IC3404-5 pin
Check that the DIR_ADC_DAC_RESET
signal level is High.
• If it is H, go to [9].
• If it is L, check for R709. If no problem is found,
ETHER UCOM (IC501) must be improperly
soldered or defective.
9
MAI
N
Assy
LRCK: IC3201-4 pin
BCLK: IC3201-2 pin
MCLK: IC3201-1 pin
Check for the CLK signal of the IC3404.
• If a CLK signal is not found, go to [9] of [3-1]
N
o
signal is output from the MASTER1/MASTER2
connectors.
1
MAI
N
Assy
IC2405-16 pin
Check for the signal at Pin 16 of DIT
(IC2405).
• If a signal is output, parts between IC2405 and
JA2401 must be improperly soldered or defective.
• If no signal is output, go to [2].
2
MAI
N
Assy
DIT_RESET: 31 pin
LRCK_DOUT: 24 pin
BCLK_DOUT: 26 pin
DAUX: 28 pin
XTI: 30 pin
DIT_TXD: 33 pin
DIT_SCK: 34 pin
DITD_CS: 35 pin
Check for input signal at each points of IC2405.
• A signal level at Pin 31 of the DIT_RESET
must be High.
• LRCK_DOUT: 24 pin
• BCLK_DOUT: 26 pin
• DAUX: 28 pin
• XTI: 30 pin
• DIT_TXD: 33 pin
• DIT_SCK: 34 pin
• DITD_CS: 35 pin
• If Pin 31 of DIT_RESET is not High, check for
R710. If no problem is found, Ether UCOM (IC501)
must be improperly soldered or defective.
• If the signals at Pin 24 of LRCK, Pin 26 of BCLK,
and Pin 28 of DAUX are not normal, go to [3].
• If the signal at Pin 30 of XTI is not normal and no
problem is found on IC2403, FPGA (IC2214) must
be improperly soldered or defective.
• If signals at Pin 33 of the DIT_TXD, Pin 34 of the
DIT_SCK, and Pin 35 of the DITD_CS are not
normal, MAI
N
UCOM (IC2011) must be improperly
soldered or defective.
• If both are normal and no signal is detected at Pin
16 of IC2405, IC2405 must be improperly soldered
or defective.
3
MAI
N
Assy
DOUT_SRC_RESET:
5 pin
SRC_LRCK: 7 pin
SRC_BCLK: 8 pin
ADAT_DOUT: 9 pin
MS_SEL: 15 pin
Check for input signal at each points of DOUT
SRC (IC2404).
• A signal level at Pin 5 of the DOUT_SRC_
RESET must be High.
• SRC_LRCK: 7 pin
• SRC_BCLK: 8 pin
• ADAT_DOUT: 9 pin
• MS_SEL: 15 pin
• If Pin 5 of DOUT_SRC_RESET is not High, check
for R708. If no problem is found, Ether UCOM
(IC501) must be improperly soldered or defective.
• If the signals at Pin 7 of the LRCK and Pin 8 of the
SCLK are not normal but no problem is found on
IC2401/IC2402, FPGA (IC2214) must be
improperly soldered or defective.
• If no signal is found at Pin 9 of the ADAT_DOUT,
DSP (IC701) must be improperly soldered or
defective.
• If the signal at Pin 15 of the MS_SEL is not
normal and Q2403/Q2402/Q2401 do not function
properly, they must be improperly soldered or
defective. If the DOUT_MS_SEL signal is not
supplied properly, check for R711. If no problem is
found, Ether UCOM (IC501) must be improperly
soldered or defective.
• If both are normal and no signal is output from
IC2404, IC2404 must be improperly soldered or
defective.
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
No.
Cause
Diagnostics Point
Item to be Checked
Corrective Action
Reference
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
Loose connection
/defective parts
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
10.41 WA
V
EFORMS
MAI
N
ASSY
1-64
1-69
1-74
1-74
1-71
1-72
1-69 1-71
1-72 1-70
1-68
1-65
1-66
1-67
1-65
1-66 1-67
1-63
1-61
1-62
1-60
1-64
1-63 1-61
1-62 1-60
1-140 1-142
1-141 1-143
1-140 1-142
1-141 1-143
1-136 1-137 1-140
1-139 1-138 1-141
1-136 1-137 1-140
1-139 1-138 1-141
1-131
1-131
1-132
1-132
1-135
1-134
1-133
1-135
1-134
1-133
Summary of Contents for DJM-900NXS
Page 10: ...10 DJM 900NXS 1 2 3 4 A B C D E F 1 2 3 4 2 2 PANEL FACILITIES ...
Page 11: ...11 DJM 900NXS 5 6 7 8 5 6 7 8 A B C D E F ...
Page 12: ...12 DJM 900NXS 1 2 3 4 A B C D E F 1 2 3 4 ...
Page 15: ...15 DJM 900NXS 5 6 7 8 5 6 7 8 A B C D E F ...
Page 20: ...20 DJM 900NXS 1 2 3 4 A B C D E F 1 2 3 4 4 3 DSP BLOCK DIAGRAM ...
Page 21: ...21 DJM 900NXS 5 6 7 8 5 6 7 8 A B C D E F ...
Page 87: ...87 DJM 900NXS 5 6 7 8 5 6 7 8 A B C D E F ...
Page 189: ...189 DJM 900NXS 5 6 7 8 5 6 7 8 A B C D E F ...
Page 192: ...192 DJM 900NXS 1 2 3 4 A B C D E F 1 2 3 4 A SIDE B A INPUT ASSY CN4003 CN4002 CN5001 CN5401 ...