2-17
EP757
SERVICE MANUAL
Introduction Fundamental Principle
Mechanical Construction
Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware Upgrading Procedure DDC Key-In Procedure Appendix
m
e
tI
N
/
P
.
v
e
R
n
o
it
p
i
r
c
s
e
D
e
p
y
T
2
1
0
.
4
4
6
3
8
.
1
5
A
t
0
.
5
*
0
2
*
5
.
5
R
E
B
B
U
R
T
R
O
P
P
U
S
D
R
A
O
B
N
I
A
M
M
C
1
0
0
.
1
0
6
3
8
.
3
5
A
5
5
7
o
r
P
z
E
G
A
B
Y
R
R
A
C
T
F
O
S
M
C
1
0
0
.
2
0
3
3
8
.
5
5
A
0
3
7
o
r
P
z
E
X
O
B
Y
R
O
S
S
E
C
C
A
N
O
T
R
A
C
M
C
0
0
.
1
0
6
3
8
.
5
5
2
A
5
5
7
P
E
2
2
3
*
4
8
3
*
4
2
4
B
A
N
O
T
R
A
C
M
C
1
0
0
.
2
0
3
3
8
.
6
5
A
5
3
7
o
r
P
z
E
E
P
E
X
O
B
Y
R
O
S
S
E
C
C
A
R
O
F
N
O
I
T
I
T
R
A
P
M
C
1
0
0
.
1
0
6
3
8
.
6
5
A
5
5
7
o
r
P
z
E
E
P
E
N
O
I
H
S
U
C
M
C
1
0
0
.
2
0
6
3
8
.
6
5
A
5
5
7
o
r
P
z
E
E
P
E
E
S
A
C
T
F
O
S
E
D
I
S
N
I
N
O
I
H
S
U
C
M
C
2
0
0
.
2
0
6
3
8
.
5
7
H
F
5
5
7
P
E
S
P
V
L
+
C
F
P
Y
L
P
P
U
S
R
E
W
O
P
Y
S
S
A
W
S
1
0
0
.
2
0
5
6
8
.
0
8
G
6
5
H
D
R
A
O
B
-
D
N
E
-
T
N
O
R
F
A
B
C
P
W
S
1
1
0
.
1
0
5
6
8
.
0
8
C
7
5
7
P
E
D
R
A
O
B
-
D
M
D
A
B
C
P
W
S
1
0
0
.
5
1
5
6
8
.
0
7
A
7
5
7
o
r
P
z
E
E
L
U
D
O
M
D
R
A
O
B
L
A
M
R
E
H
T
W
S
1
1
0
.
3
0
6
3
8
.
5
7
B
0
0
/
P
0
0
2
C
U
E
S
P
I
L
I
H
P
W
0
0
2
T
S
A
L
L
A
B
P
M
A
L
Y
S
S
A
W
S
3
0
0
.
6
0
6
3
8
.
5
7
A
5
5
7
P
E
E
L
U
D
O
M
R
O
T
A
V
E
L
E
Y
S
S
A
Y
U
B
M
C
1
0
0
.
7
0
6
3
8
.
5
7
A
5
5
7
o
r
P
z
E
E
L
U
D
O
M
P
A
C
S
N
E
L
Y
S
S
A
Y
U
B
M
C
1
0
0
.
4
0
5
6
8
.
0
8
A
7
5
7
o
r
P
z
E
D
R
A
O
B
V
A
-
R
O
T
C
E
N
N
O
C
A
B
C
P
W
S
1
0
0
.
6
0
6
3
8
.
0
8
A
5
5
7
o
r
P
z
E
D
R
A
O
B
D
A
P
Y
E
K
A
B
C
P
W
S
1
0
0
.
7
0
0
6
8
.
0
8
B
S
A
L
L
A
C
D
R
A
O
B
R
O
S
N
E
S
-
R
I
A
B
C
P
M
C
1
0
0
.
8
0
6
3
8
.
0
8
A
5
5
7
o
r
P
z
E
D
R
A
O
B
R
E
K
A
E
P
S
A
B
C
P
M
C
1
0
0
.
9
0
6
3
8
.
0
8
A
0
9
=
D
I
5
5
7
o
r
P
z
E
D
B
R
O
S
N
E
S
L
A
M
R
E
H
T
A
B
C
P
M
C
1
0
0
.
6
0
4
3
8
.
0
8
D
1
9
=
D
I
5
3
7
/
0
3
7
o
r
P
z
E
D
B
R
O
S
N
E
S
L
A
M
R
E
H
T
A
B
C
P
M
C
0
4
0
.
G
A
5
0
0
.
5
8
A
K
O
L
Y
N
5
.
5
L
*
4
H
*
C
N
U
0
4
-
4
#
L
E
E
T
S
O
/I
W
E
R
C
S
M
C
0
5
0
.
3
2
3
A
0
.
5
8
A
5
5
7
o
r
P
z
E
K
C
A
L
B
5
*
3
M
H
C
E
M
F
/
P
W
E
R
C
S
M
C
0
4
0
.
3
2
1
A
1
.
5
8
A
i
N
4
*
3
M
H
C
E
M
N
A
P
W
E
R
C
S
M
C