3
1
5
6
2
4
A14
A13
C20
A20
C19
A19
A26
A21
C13
C17
C14
C16
C15
A15
C18
A17
A18
39
1
4
3
6
5
8
7
10
9
12
11
33
25
23
21
26
31
24
22
36
34
30
27
28
35
32
29
20
17
15
13
18
19
16
14
38
37
2
40
25
16
24
17
23
18
22
19
21
30
11
29
12
28
13
27
14
26
15
9
8
35
1
3
5
6
34
31
10
7
4
36
2
39
38
37
32
33
2
15
4
13
6
11
5
12
1
16
3
14
4
13
4
13
3
14
5
12
3
14
8
9
5
12
6
11
1
16
4
13
7
10
2
15
4
13
6
11
1
16
8
9
7
10
2
15
6
11
8
9
7
10
5
12
6
11
3
14
5
12
8
9
7
10
2
15
1
16
1
16
3
14
2
15
7
10
8
9
10
12
13
14
7
6
18
19
5
22
17
20
21
16
23
4
24
1
3
2
15
11
9
8
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
C28
C29
C30
C31
A28
8
16
27
42
49
60
64
22
78
73
38
29
28
59
30
74
77
63
84
79
65
18
19
50
1
2
71
72
51
52
14
3
4
5
75
76
62
15
17
13
7
83
80
82
81
68
67
26
24
25
23
12
11
43
35
9
10
31
21
66
39
20
33
56
69
36
55
41
34
32
57
45
46
58
47
48
61
44
70
37
53
54
6
40
J4
J4
J4
J4
J4
J4
C21
C22
C23
C25
C24
C20
TP1
TP5
TP3
TP4
TP6
TP2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
J2
TP10
R1
R5
C19
C14
C13
Y1
C17
C16
C18
C15
U1
RZ7
RZ7
RZ7
RZ7
RZ7
RZ7
RZ6
RZ4
RZ6
RZ4
RZ5
RZ4
RZ5
RZ4
RZ5
RZ5
RZ4
RZ6
RZ2
RZ5
RZ6
RZ5
RZ5
RZ4
RZ6
RZ6
RZ6
RZ6
RZ2
RZ2
RZ2
RZ2
RZ2
RZ2
RZ2
RZ4
RZ4
RZ5
RZ7
RZ7
U4
R4
CR5
CR4
CR3
CR6
CR2
CR1
CR7
RZ1
R12
TP9
J1
R14
U2
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
DIGT.1
DIGT.1
DIGT.0
DIGT.0
DIGH.6
DIGH.6
DIGH.5
DIGH.5
DIGH.4
DIGH.4
DIGH.3
DIGH.3
DIGH.2
DIGH.2
AD0
AD0
IP6
IP6
DP2
IP0
LT
DIG3-C
DIG3-B
DIG3-A
ANN2
ANN1
ANN3
ANN5
DIG3-D
DIG3-E
DIG3-F
DIG3-G
DIG2-F
DIG2-E
DIG2-D
DIG2-C
DIG2-A
DIG2-G
DIG1-A
DIG1-B
DIG1-C
DIG1-D
DIG1-E
DIG1-F
DIG1-G
DIG2-B
AD2
AD2
AD1
AD1
DIGH.1
DIGH.1
DP3
DIGH.7
DIGH.7
WR
WR
DIGH.0
DIGH.0
COMINT
TXDA
OP0
RXDA
RST
RST
SRCLK
SRCLK
LT
RD
ALE
ANN7
COMS
COMS
A13
A15
A15
A14
A7
A6
A5
A4
AD6
AD6
A3
A3
A2
A2
A1
A1
AD5
AD5
AD4
AD4
AD7
AD7
ANN9
ANN11
AD3
AD3
DP1
A0
A0
IP4
IP4
IP3
IP3
IP2
IP2
IP1
IP1
GND
GND
GND
DIGT.2
DIGT.2
DIGT.3
DIGT.3
DIGT.4
DIGT.4
DIGT.5
DIGT.5
DIGT.6
DIGT.6
DIGT.7
DIGT.7
DIGU.0
DIGU.0
DIGU.1
DIGU.1
DIGU.2
DIGU.2
DIGU.3
DIGU.3
DIGU.4
DIGU.4
DIGU.5
DIGU.5
DIGU.6
DIGU.6
DIGU.7
DIGU.7
IP5
IP5
.0056uF
.0056uF
.0056uF
.0056uF
.0056uF
.0056uF
499k
3.01K
20V
4.7uF
10pF
10pF
3.6864MHZ
20V
4.7uF
20V
4.7uF
20V
4.7uF
20V
4.7uF
RD
WR
CE
A0
A1
A2
A3
RXDA
RXDB
IP0
IP1
IP2
IP3
IP4
IP5
IP6
X1/CLK
X2
OP0
OP1
OP2
OP3
OP4
OP5
OP6
OP7
INTR
TXDA
TXDB
D7
D6
D5
D4
D3
D2
D1
D0
RESET
88C681
10K
10K
10K
10K
10K
10K
680
680
680
680
680
680
680
680
680
680
680
680
330
680
680
680
680
680
680
680
680
680
330
330
330
330
330
330
330
680
680
680
10K
10K
SHTDWN
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
EN
R3IN
R2IN
R1IN
T4OUT
T3OUT
T2OUT
T1OUT
V-
V+
VCC
GND
MAX236
137
P6KE16CA
P6KE16CA
P6KE16CA
P6KE16CA
P6KE16CA
1N5817
1N914B
20K
20K
GND-C
GND-B
GND-A
GND-E
GND-D
A7
A6
A5
A4
A3
A2
A1
A0
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
WR
ALE
SRCLK
GND-F
TMS
TCK
TDO
TDI
VCCIO-B
VCCIO-A
VCC-C
VCC-B
VCC-A
ANN1
ANN2
DIGH.0
DIGH.1
DIGH.2
DIGH.3
DIGH.4
DIGH.5
DIGH.6
DIGH.7
DIGT.0
DIGT.1
DIGT.2
DIGT.3
DIGT.4
DIGT.5
DIGT.6
DIGT.7
DIGU.0
DIGU.1
DIGU.2
DIGU.3
DIGU.4
DIGU.5
DIGU.6
DIGU.7
RST
CLK_OUT
SR_OUT
TIP
CHKBK
TEST_OUT
COMS
LEDGRN
LEDRED
ANN12
ANN11
ANN10
ANN9
ANN8
ANN7
ANN6
ANN5
ANN4
ANN3
CHKBKLEV
A15
A15
A14
A13
XILINX_XC95108-15-PC84
DSR
DSR
START
STOP
EXTERNAL INPUTS
RESERVE
TX FAIL
BLK OUT
RMT INIT
AD0 THRU AD7
TO SHEET 1
TO SHEET 1
SPARE
22K
RTS
RTS
GND
RXD
CTS
TXD
CTS
RXD
TXD
LED DIGIT 1
LED DIGIT 2
LED DIGIT 3
LED ANNUCIATORS
SHEET 3
CLK OUT
SR OUT
TIP
CHKBKLEV
TEST OUT
LED (RED)
LED (GREEN
CHKBK
Figure 16-20. Schematic, RFL 9785 Checkback (Dwg. No. D-106529-C) Sheet 2 of 3
RFL
9785
RFL
Electronics
Inc.
July 26, 2007
16-33 (16-34 Blank)
(973) 334-3100