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Emtron DX-3SP - DISPLAY BOARD - Circuit Diagram

Emtron DX-3SP
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33
15.2.7 DISPLAY BOARD – Circuit Diagram
Figure 15
L63
R
L16
Y
VR2
50k
VR1
5k
L76
R
C11
2.2nF
L56
Y
L52
Y
R12
2k2
L38
G
C6
1nF
R3
1k2
R8
100
L55
G
R2
1k2
R7
2k2
L19
R
L33
G
X3-8
Ig2-
1
U5
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG IN
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L44
G
L22
G
L18
R
X3-9
Ig2+
1
L31
G
L41
G
L13
Y
R9
560
U7
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
U6
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L58
Y
R4
1k2
L28
G
L70
R
L9
Y
L73
G
X3-10
OD/TX
1
L48
Y
L79
G
L59
Y
L5
Y
L43
G
X3-1
1
L12
Y
U3
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L23
G
VR5
5k
L39
G
L64
R
L11
Y
L77
R
L35
G
L50
R
L6
Y
L7
Y
L78
R
C12
1nF
L46
Y
L61
Y
VR6
5k
X3-11
1
X3-7
T X
1
L75
R
+5V
C8
1nF
FORWARD POWER
R6
1k2
L53
Y
L27
G
U9
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L74
G
L10
Y
X3-16
O/D
1
U10
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L21
G
X3-13
REFLECTED POWER
1
E M T R O N
X3-4
1
L67
R
R14
100
L8
Y
L72
G
L62
R
R15
560
R11
U2
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
L17
R
L37
G
U4
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG IN
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
X3-15
SWR
1
X3-3
FAULT
1
L14
Y
L71
G
L54
G
L15
Y
L47
Y
C7
2. 2nF
X3-6
SWR/FLT
1
L30
G
L57
Y
C15
1nF
L29
G
L51
Y
L34
G
L42
G
L26
G
VOLT
X3-5
READY
1
U8
LM3914
5
9
4
6
8
32
7
10
11
12
13
14
15
16
17
18
1
SIG I N
MODE
RLO
RHI
REF ADJ
V+V-
REF OUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
C5
1nF
L25
G
L2
Y
C9
2.nF
+
C3
47uF
L4
Y
X3-2
AMP
1
L18
R
L45
Y
L60
Y
L3
Y
L81
R
L1
Y
L40
G
L65
R
X3-12
1
R1
1k2
C14
2.2nF
+
C1
100uF
R13
2k2
VR4
5k
L49
R
VR3
5k
X3-14
1
L69
R
L36
G
D1
4V3
L32
G
L20
R
C10
2.2nF
L66
R
C4
1nF
L24
G
3
DISPLAY PANEL
A3
1 1Monday, January 07, 2002
DP-1 V.3
T itle
Size Document Number Rev
Date: Sheet of
R5
2k2
+
C2
47uF

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