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Ver. 2
Please refer to the
MODIFICATION NOTICE.




SERVICE MANUAL
MODEL JP E3 E2 EK K2A E1C E1K EUT

DN-X500

DJ MIXER




For purposes of improvement, specifications and
design are subject to change without notice.



Please use this service manual with referring to the
operating instructions without fail.


Some illustrations using in this service manual are
slightly different from the actual set.




D&M Holdings Inc.


S0127-1V02DM/DG1008 Copyright 2010 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
DN-X500



SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.




2
DN-X500
BLOCK DIAGRAMS



MAIN MIC LEVEL
MAIN MIC IN MAIN MIC BUFFER
AMP




2
AMP MIC EQ OFF 1 A




3
3 C H 2 1 2 C1
1 2 2
ON POWER SW. POWER
G 15V




1
MAIN MIC FX 1 2 TRANS.
LOW MID HI




1
INV. AC IN 5V
POWER SUPPLY




3



3



3
2 2 2
AUX MIC
OFF
AUX MIC LEVEL




1



1



1
AUX MIC IN 1 2 BUFFER
AMP -15V
AMP 1 A
ON




3
2
C1
1 2 2




1
AUX MIC FX



INV.




HPF HI
LC78211




3
2 BOOTH LEVEL INV.
BOOTH AMP
INV.




1
3 L




3
1 2 2
2 R BOOTH OUT
3 A CH1 GAIN BOOTH 1
2

1




EQOFF 1 G
LPF HPF 1 A 1 2 VCA MASTER




1
AMP MID
4 C1 1 A POST OFF
3




3
2 2 1 2
C1 2 C1
5 1 2 2
EQON 1 2 ON
1




1
6 CH1FX
CUE
BUFFER
7

8




LPF
LOW
RECOUT




3
2 LPF
AMP
PH1/LINE1




1
PH LINE
C1




INV.
2
1




LPF
LINE2
BUFFER HPF HI 3 L
LC78211 INV. 2 R SUBWOOFER OUT




3
2 1 G




1
40-200Hz ADJ
3 A EQ OFF
2

1




CH2GAIN BOOTH 2
LPF HPF MID 1 A 1 2 VCA
AMP




3
C1 1 A 2
4
3




3
C1 2 2 2 C1
AMP 1 2
5 2




1
PH2/LINE3 EQON 1 2
1




1
6 CH2FX
CUE
7

8




LPF LOW
PH LINE LPF
C1




3




1
2 MASTER BAL. MASTER LEVEL
2




INV.
1




G
MONO/ST ATT -10dB
AMP 3
1




BUFFER MASTER BAL. OUT




3




3
C
LINE4 2 2 H
BUFFER




2
C1




C1
2

1




2

1
1




1
HPF
INV.
INV. 1 A MASTER OUT
CUE MASTER
C1
1 2 2 1 2




1
2
MASTERX
F
HPF HI
LINE5




2 3
LC78211
3




BUFFER 2 SPLIT CUE
OFF ON
CUEPAN
CUELEVEL




1
TALKOVER SPLIT CUE
1




MASTER AMP
3 A CH3GAIN EQOFF BOOTH 3 1 2
2

1




3
3
LPF HPF 1 A 1 2 2 1 2 2
AMP MID VCA 3 L
4 C1 1 A 2 R PHONES OUT
3




3




C1 2 2 C1




1
2 CUE G




1
LINE6 1
5 1 2 2
EQON 1 2 1 2
BUFFER
1




1




CH3FX
6 CUE
FX CUE
7

8




LPF LOW LPF
3




2

INV.
1




LINE7 3L
BUFFER SEND
1G

DRY/WET
INV.
DRY




3
LINE8 2
HPF HI AMP
BUFFER LC78211
3




2 3L
WET




1
R/PGM
RETURN




L/CUE
3 A KEYS & SWITHES 1G
1




2

1
3 A CH4GAIN EQOFF 4
2

1




AMP LPF HPF MID 1 A 1 2 VCA C1
SWITCHES ADC
4 C1 1 5
A
3




3




C1 2 2 2 BOOTH 4
C1




C1
1 2




2

1
5 2 6
EQON 1 2
1




1




7

8
CH4FX BUFFER
6 CUE
7

8




LPF LOW 3L
LPF PWM CPU CF COCTROL
3




2 1G




3
2
CROSSFADER
1