9785
RFL
Electronics
Inc.
ember 1, 2006
6-13 (6-12 Blank) (973) 334-3100
C4
C5
C3
C13
B13
C14
B26
A26
A13
B14
A14
C27
A15
B25
18
17
16
15
14
13
12
11
1
19
2
3
4
5
6
7
8
9
C15
A25
C32
A28
C22
B27
1
2
3
8
4
C11
C8
7
6
5
8
4
C10
C9
14
8
9
3
12
C17
13
10
11
3
12
B21
6
5
4
3
8
9
2
1
A27
C29
B29
A29
C26
B30
A16
12
13
C25
C7
C2
C1
B28
C28
B24
C6
1
6
7
3
12
2
4
5
3
12
2
1
4
3
6
5
8
9
10
11
18
17
16
15
14
13
12
11
1
19
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
1
19
2
3
4
5
6
7
8
9
B15
B16
B17
B18
B19
B20
C16
C31
B31
A31
3
1
2
11
13
12
8
10
9
6
4
5
U6
R1
R3
C2
C6
C3
-
+
U2
R2
-
+
U2
R33
R32
C9
C11
C10
R13
C12
R10
R35
C38
R12
R6
-
+
U1
R7
CR2
R8
R5
R4
R9
R34
R11
C22
TP3
R14
R15
TP16
TP2
R18
-
+
U1
R20
R21
R22
C13
R19
C4
C7
C8
C37
R28
R27
R17
R25
U4
C14
U4
U4
C16
C15
U4
R24
R26
TP7
TP5
TP6
U11
TP4
C1
R23
C5
R16
-
+
U1
-
+
U1
R47
TP21
R45
R37
R36
TP19
TP18
TP20
U11
TP17
U11
U11
U11
U11
U3
U5
U12
U12
U12
U12
TP22
+5V
-15V
+15V
+15V
+15V
-15V
+5V
+5V
+15V
+5V
+5V
+5V
-15V
+15V
+5V
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
VOICE_REQ_IN
A-SWITCH
SPARE_IN2
SIG_COMP_IN
START_OUT
START_2
CARR-DET
CARR_DET
B-SWITCH
STOP-OUT
VOICE-HIGH
RESERVE-OUT
OSC-3
RESERVE_IN
LM_SP6
START-OUT
START
VOICE_LOW
STOP
SIGNAL_ENVELOPE
LM_SP5
POWERFAIL_2
LMSP_1
LMSP_2
CBFAIL_IN
RMT_INIT
VOICE_HIGH
LM_SP4
CARRIER_SW_OUT
LM_SP3
VOICE-REQ-IN
SPARE-IN2
SIG-COMP-IN
UTILITY_OUT
STOP-2
LM_SP2
DIRECT-IN
CHKBACK-IN
CB-LEVEL-IN
POWERFAIL-2
LM_SP1
CBFAIL-IN
VOICE_MUTE
SPARE-OUT2
SPARE-OUT1
AM-EN
CB-TIP
RMT-INIT
RESERVE_OUT
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
START-2
STOP_2
CHKBACK_IN
AM_EN
SPARE_OUT2
SPARE_OUT1
CB_TIP
SPARE_OUT3
UTILITY-OUT
STOP
CARRIER-SW-OUT
VOICE-LOW
VOICE-MUTE
RLYGND
RLYGND
CB_LEVEL_IN
OSC_12
OSC_3
B_SWITCH
DIRECT_IN
OSC-12
A_SWITCH
+12V
STOP_OUT
SPARE-OUT3
START
LOSIG_IN
HISIG_IN
CE_LOW
CE_HIGH
LMSP_3
LMSP_4
LMSP_5
LMSP_6
THRESHOLD DETECTORS
SIGNAL LEVEL
CARRIER ENVELOPE
NOISE DETECTORS
G1
G2
A1
A2
A3
A4
A5
A6
A7
A8
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
74HC541
6.49K
NA
47uF
.1uF
47uF
TL082
2.05K
TL082
10K
10K
.1uF
.1uF
.1uF
4.53K
.056uF
75K
1M
.033uF
2.43K
5.11M
TS374N
10K
1N914
10K
1K
158K
75K
1M
6.98K
.1uF
8.25K
20K
10K
TS374N
33.2K
N/A
N/A
5600pF
3.92K
47uF
.1uF
.1uF
.1uF
33.2K
3.92K
20K
33.2K
74HC14
5600pF
74HC14
74HC14
5600pF
5600pF
74HC14
33.2K
3.92K
74HC14
47uF
3.92K
.1uF
1M
TS374N
TS374N
7.15K
10K
10K
10K
74HC14
74HC14
74HC14
74HC14
74HC14
G1
G2
A1
A2
A3
A4
A5
A6
A7
A8
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
74HC541
G1
G2
A1
A2
A3
A4
A5
A6
A7
A8
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
74HC541
74HC125
74HC125
74HC125
74HC125
N/A
N/A
RESERVE-IN
NOT INSTALLED
NOT INSTALLED
NOT INSTALLED
NOT INSTALLED
NOT INSTALLED
NOT INSTALLED
ARE OPTIONAL.
U14 & U16)
(USED WITH U11,
NOTE: C25, C33 & C37
.097V
7
6
5
4
3
2
RZ4
22K
1
RZ4
22K
8
9
D
C
B
A
B
A
D
C
B
A
A32,B32,
CHASSIS
GUARD
RELAY
A11,B11,
A8,B8,
9
8
7
6
5
4
3
2
1
1
1
RZ2
RZ2
10K
10K
-THRU-
A7,B7,
A5,B5,
A2,B2,
A4,B4,
A3,B3,
A6,B6,
A1,B1,
A10,B10,
A9,B9,
SPARE
RFL
Sept
Figure 6-4. Schematic, RFL 9785 AM Logic (Dwg. No. D-106544-C) Sheet 2 of 2