BLOCK DIAGRAM
DISASSEMBLY PROCEDURE
DG80-112
6
INPUT LOW
JK501
INPUT HIGH
JK701
TRIM
VR
IC501
RED
GREEN
INPUT LEVEL
INDICATOR
IC701
ANF2
ANF
DM
IC104
IC105
IC118
IC119
IC3
IC8,11
IC2
IC123
IC125
I/
V
IC122
IC124
IC403
IC34
IC13
IC21,27
IC36
I/
V
D/A
D/A
DRAM
F-ROM
IC12,14
75
1
2
75
57
21
61
57
57
31
16
57
21
31
2
1
27
S-RAM
DSP
CPU
D•FF
D•FF
BUFF
A/D
DF
PN
VR
G
A
I
N
M
A
S
T
H
•
M
I
D
L
•
M
I
D
B
A
S
S
T
R
E
P
R
E
P
R
V
MOTOR
DRIVE
PS
PW
ANF
ANR
AC IN
POWER SW
TRANS
MUTING
POWER
SUPPLY
+HB
+/-15V
+/-5V
OUTPUT
VR
POWER AMP
SP JACK
LOAD:
(EXT)
4~8
RETURN
SEND
JK403
IC402
IC401
JK402
JK401
EFECT
LEVEL
LINE OUT LEVEL
LINE OUT
KEC-54160
1
[60]: Hexagonal Nut 5.0 MFC2BL
(20040400)
[30A]: Oval Head Screw 5.0X35 MFC2BL
(VP104600)
[70]: Oval Head Tapping Screw-1 4.0X30 MFC2BL
(EN240090)
(Fig. 1)
(Fig. 2)
[70]
[60A]X4
Connector assembly (speaker)
Speaker
Back board(U)
Pre-main unit
Pre-main unit
[70]
[30A]
1.
Pre-Main Unit
1-1
Remove the four (4) screws marked [70]. The
back board (U) can then be removed. (Fig. 1)
1-2
Remove the plug of the connector assembly
(speaker) located on the rear panel and the six
(6) screws marked [30A]. The pre-main unit
can then be removed by sliding it backward.
(Fig. 1, Fig. 2)
2.
Speaker
2-1
Remove the pre-main unit. (See Procedure 1.)
2-2
Remove the four (4) hexagonal nuts with
flanges marked [60A]. The speaker can then be
removed. (Fig. 1)
3.
Front Panel Assembly
3-1
Remove the pre-main unit. (See Procedure 1.)
3-2
Remove the five (5) screws marked [30B]. The
front panel assembly can then be removed.
(Fig. 3)
