Orban OPTIMOD-FM 5500 Operation Manual page 270

+5V P4-1 and P4-2 provide GND to gnd plane on front bd.
There is no other connection to GND on the front bd to the plane.
IC4
D0 2 19 F1
1D 1Q
D1 3 18 F2
2D 2Q
D2 4 17 F3
3D 3Q
D3 5 16 F4
4D 4Q
D4 6 15 F5
5D 5Q
D5 7 14 F6
6D 6Q
D6 8 13 F7
7D 7Q
D7 9 12 F8
8D 8Q
D[0..7]
74FCT574
1
DISROWA
F1 3
F3 5
F5 7
F7 9
F9 11
+5V F11 13
F13 15
IC5
8x2 POSTS
D0 2 19 F9
1D 1Q
D1 3 18 F10
2D 2Q
D2 4 17 F11
3D 3Q
D3 5 16 F12
4D 4Q
D4 6 15 F13
5D 5Q
D5 7 14 F14
6D 6Q
D6 8 13 F15
7D 7Q
D7 9 12 F16
8D 8Q
D[0..7]
74FCT574
DISROWB
+5V
IC6
D0 2 19 F17
1D 1Q
D1 3 18 F18
2D 2Q
D2 4 17 F19
3D 3Q
D3 5 16 F20
4D 4Q
D4 6 15 F21
5D 5Q
D5 7 14 F22
6D 6Q
D6 8 13 F23
7D 7Q
D7 9 12
8D 8Q
F15 1
N/C
F17 3
D[0..7] F19 5
F21 7
74FCT574
DISROWC F23 9
+5V F25 11
13
+5V FS3 15
8x2 POSTS
IC9
D0 2 19 F24
1D 1Q
D1 3 18 F25
2D 2Q
D2 4 17 F26
3D 3Q
D3 5 16
4D 4Q N/C
D4 6 15
5D 5Q N/C
D5 7 14
6D 6Q N/C
D6 8 13
7D 7Q N/C
D7 9 12
8D 8Q N/C
D[0..7]
74FCT574 IC3
DISROWD
D0 3
D0
D1 4
D1
D2 7
D2
D3 8
D3
D4 13
D4
D5 14
D5
D6 17
D6
D7 18
D7
D[0..7]
74HC374
+5V
IC2
RP2
D0 2 19 1
1D 1Q
D1 3 18 2
2D 2Q
D2 4 17 3
3D 3Q
D3 5 16 4
4D 4Q
D4 6 15 5
5D 5Q
D5 7 14 6
6D 6Q
D6 8 13 7
7D 7Q
D7 9 12 8
8D 8Q
RES_NET
D[0..7] 100 OHM
P4 74AC574
2
. .
4 F2
DISCOLB
. .
6 F4
. .
8 F6
. .
10 F8
. .
12 F10
. .
14 F12 +5V
. .
16 F14
. .
IC1
RP1
D0 2 19 1
1D 1Q
D1 3 18 2
2D 2Q
D2 4 17 3
3D 3Q
D3 5 16 4
4D 4Q
D4 6 15 5
5D 5Q
D5 7 14 6
6D 6Q
D6 8 13 7
7D 7Q
D7 9 12 8
8D 8Q
RES_NET
D[0..7] 100 OHM
74AC574
DISCOLA
MAIN BOARD
D[0..7]
JP203
D0
1 2
D2
3 4
D4
5 6
D6
7 8
P3
LED
9 10
2 F16 ENCODER
. . 11 12
4 F18
DISCOLA
. . 13 14
6 F20
. . 15 16
8 F22
DISROWB
. . 17 18
10 F24 DISCOLB
. . 19 20
12 F26
. . 21 22
14 FS2
. . N/C 23 24
16 FS4
. . N/C 25 26
CABLE_26P
+5V P1
1 2
. .
FS6 3 4
. .
FS2 FS3 FS4 FS8 5 6
. .
FS10 7 8
. .
R17 R18 R19
FS12 9 10
. .
110.0 110.0 110.0
5x2 POSTS
+5V 1% 1% 1%
R20
2 FS5
Q0
5
110.0
Q1 1%
6
Q2
R21
9 FS6
Q3
12
Q4 110.0 1%
15
Q5 R22
16 FS7
Q6
19 S12
110.0 1%
Q7
ROTARY ENCODER
R23
FS8
110.0
1%
4
R24
FS9
LED
110.0 1%
6-50
TECHNICAL DATA
16 FY7
15 FY6
14 FY5
13 FY4
12 FY3
11 FY2
10 FY1
9 FY0
P2
FY0 1 2 FY1
. .
FY2 3 4 FY3
. .
FY4 5 6 FY5
. .
FY6 7 8 FY7
. .
FY8 9 10 FY9
. .
FY10 11 12 FY11
. .
FY12 13 14 FY13
. .
FY14 15 16 FY15
. .
8x2 POSTS
16 FY15
15 FY14
14 FY13
13 FY12
12 FY11
11 FY10
10 FY9
9 FY8
HDR 2_RA
D[0..7]
+5V
D1 JP202
D3 FROM
1
D5 POWER
2
D7 SUPPLY
3 +9VB
BOARD
DISROWD
4
C1
IN_SENSIT +
HDR 4 6.8UF
DISROWA
25V
DISROWC
N/C
N/C
N/C
FS5
FS7
FS9
FS11
FS13
+5V +5V +5V +5V
+5V
R25 R26 R27 R28
IC8
100K 100K 100K 100K +5V
1% 1% 1% 1%
1 19
ENCODER
DIR E
FS10 2 18 D7
A0 B0
FS11 3 17 D6
A1 B1
FS12 4 16 D5
A2 B2
FS13 5 15 D4
A3 B3
6 14 D3
A4 B4
+5V 7 13 D2
IC7A A5 B5
R29
IN_SENSIT 8 12 D1
10.0K 1%
A6 B6
1 2 9 11 D0
A7 B7
74HC14A
+5V 74HC245
R30
10.0K 1% IC7B
3 4
74HC14A
SOEARTH
MNT HOLE
FRONT PANEL SCHEMATIC DIAGRAM -- REAR CIRCUIT BOARD
ORBAN MODEL 5500
+5V
IC7C IC7F
5 6 13 12
N/C N/C
74HC14A 74HC14A
IC7D
9 8
N/C
74HC14A
IC7E
11 10
N/C
74HC14A
SPARES
CR1
J1
1 2
1
2
BI-COLOR LED
C2 C3 C4 C5 C6 C7 C8
0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF
50V 50V 50V 50V 50V 50V 50V
D[0..7]
Drawing Number Ver. Rev. Sheet
62155 000 02 1 1
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