Midian VS-1200-KW1 User manual

1
Installation Manual
VS-1200-KW1
Frequency Domain Scrambler with Multi-Format ANI
VS-110- KW1
Rolling Double Inversion Scrambler
VS-1100- KW1
Double Inversion Scrambler
VS-1000- KW1
Voice Inversion Scrambler
VS-1050- KW1
Voice Inversion Scrambler with Multi-Format ANI
Manual Revision: 2011-08-26
Covers Software Revisions:
VS-1XXX: 01.31.00 & Higher
This manual & product supports the following radios:
Portables: TK-2180, TK-3180
Mobiles: TK-5710, TK-7180, TK-8180
American Communication Systems
Discover the Power of Communications
™
TO ORDER –VISIT http://www.ameradio.com

2
HARDWARE SPECIFICATIONS
Operating Voltage 4.75-9.5 VDC
Operating Current – VS-1200, VS-110 & VS-1100:
Power Save Mode (COR Operation) 2.5 mA typical
Power Save Mode (VOX Operation) 10 mA typical
Clear or Inversion Operation 29 mA typical
FFT Scrambling Operation 83 mA typical
Average w/COR Power Save (80-10-10 cycle) <17 mA*
Average w/COR Power Save (90-5-5 cycle) ~10.5 mA*
Operating Current – VS-1000 & VS-1050:
Power Save Mode (COR Operation) 2.5 mA typical
Power Save Mode (VOX Operation) 10 mA typical
Clear or Inversion Operation 17.5 mA typical
Average w/COR Power Save (80-10-10 cycle) <5 mA*
Average w/COR Power Save (90-5-5 cycle) <4 mA*
Operating Temperature -30 - +60 C
Frequency Response 300-3000 Hz**
Input Impedance >45 k
Input Level (TX) 0.05-2.5 VPP
Input Level (RX) 0.05-2.5 VPP
Audio Output Impedance < 1200 Ohm
* - The transmit and receive cycles are based on scrambled mode. When using clear mode, the consumption will decrease.
** - This is based on FFT scrambling. When using voice inversion this will vary.
SECURITY SPECIFICATIONS
VS-1200:
Total Code Combinations ~6.2 x 10^23
Actual Code Combinations ~4 Billion
Number of Selectable Keys 3
Levels of Security 4
Inversion 2100-4100 Hz (0-15 Hz resolution)
Level 1 16 bins
Level 2 32 bins
Level 3 64 bins
VS-1100:
Total Number of Codes 32
Number of Selectable Codes 4
VS-1000 & VS-1050:
Number of Selectable Keys 4
Inversion Frequency Range 2100-4100 Hz (0-15 Hz resolution)
VS-110:
Total Number of Codes 1020
Number of Codes 255
Number of Groups 4
Number of Selectable Codes 4

3
VS-1200 & VS-1050 ANI SPECIFICATIONS
DTMF ANI Length Up to 6-digits
DTMF ANI Timing 60/40 msec (Programmable)
5-Tone ANI Length Up to 6-digits
5-Tone ANI Timing Programmable
G-Star ANI Range 0001-9999
G-Star ANI Timing 320 msec
Motorola’s MDC-1200 ANI Range 0000-FFFF
Motorola’s MDC-1200 ANI Timing ~180 msec
Kenwood’s FleetSync Unit ID Range 1000-4999
Kenwood’s FleetSyncUnit ID Timing ~100-150 msec
INSTALLATION OVERVIEW
1. Test the radio for functionality.
2. Program the scrambler per the Product Programming Section of this manual.
3. Install the scrambler into the radio per the Hardware Installation Section of this manual.
4. Program the radio per the Radio Programming Section of this manual.
*** Midian is not responsible for any damage/loss resulting from the use of Midian’s products.

4
GENERAL INFORMATION
VS-1200:
The VS-1200 is a Digital Signal Processor (DSP) based Frequency Domain voice scrambler offering a high level
of voice privacy. The DSP converts the analog signal into quantitized digital data. It then converts the “Time
Domain” signal into the “Frequency Domain”. This results in an audio “frequency spectrum”, which is then
partitioned into bins that are encrypted by the non-linear key generator. The digitized data is converted back to
the analog realm using a digital to analog converter.
The above technique and the lack of synchronization result in excellent audio quality, high security and enable the
VS-1200 to be used in virtually any type of radio system. These systems include HF SSB, Conventional Two-
Way, Trunking, Voting and Simulcast.
In addition to the scrambling functions the VS-1200 offers ANI and Emergency ANI encode in the following
formats:
Motorola’s MDC-1200
Kenwood’s FleetSync
Harris’ G-Star (aka GE-Star)
DTMF
5-Tone (all formats)
VS-110:
Midian’s VS-110 is a rolling double inversion scrambler that offers 1020 possible codes (4 groups with 255 codes
per group). Of these codes the scrambler may be programmed with up to 4 of these codes. The VS-110 series is
compatible with Icom’s UT-110.
VS-1100:
Midian’s VS-1100 is a double inversion scrambler (aka split-band scrambler) that offers 32 possible codes. Of
these 32 codes the scrambler may be programmed with up to 4 of these codes. The VS-1100 series is compatible
with Midian’s VPU-6, Icom’s UT-109 or Inysa’s XPTO.
VS-1000:
Midian’s VS-1000 voice inversion scrambler provides an entry level of voice security for two-way radio
communications. The VS-1000 provides up to 4 different inversion frequencies that are button selectable. These
inversion frequencies are programmable using Midian’s KL-3. The VS-1000 is compatible with Midian’s VPU
series voice inversion scramblers.
VS-1050:
Midian’s VS-1050 is a voice inversion scrambler with multi-format ANI encode. The VS-1050 has the same
scrambling features as the VS-1000, but adds ANI and Emergency ANI encode in the following formats:
Motorola’s MDC-1200
Kenwood’s FleetSync
Harris’ G-Star (aka GE-Star)
DTMF
5-Tone (all formats)

5
PRODUCT PROGRAMMING
Note: Greater details of the VS series products can be found in the VS Series Technical Reference Manual.
Midian’s VS-1xxx-KW1 is programmed via Midian’s KL-4 programmer. Please reference the KL-4 manual for
setup instructions of the programming software and hardware. From the product selection screen on the
programming software, select the VS-1xxx from the list and click OK.
Set the parameters of the scrambler software to fit the application. If any clarifications on a feature are required,
move the mouse cursor over the feature name until the question mark appears and right click, a definition of the
feature will be shown.
After entering the parameters, save the file by going to File - Save As. Enter the file name in the File Name block
and click Save. Saving the file will allow for quick and easy reprogramming of units.
Programming: Plug the board onto the KL-4. Push the power button on the KL-4 and click “Program Unit” in the
programming software. The LED on the KL-4 will faintly flash if programmed successfully.
Reading: Plug the board onto the KL-4. Push the power button on the KL-4 and click “Read Unit” in the
programming software.
Note: The security pass phrases can use any 8-bit ASCII keyboard characters. These include the characters on a
typical English keyboard such as 0-9, A-Z (upper and lower case), *, #, @, $, etc. Spaces are also allowed.
Midian does not recommend using international language character such as ñ, ä, ß, ü, é, etc. as these have not
been tested. Please also note that the pass phrases are case sensitive.
Important Note: Do not attempt to ‘clone’ the scrambler by reading one and then programming another. When
the scrambler is read, the pass phrases will be read out as “<undefined>”. If another scrambler is then cloned
with this information, the scramblers will be incompatible because they have different pass phrases. To ensure
scramblers communicate with each other, program them from a saved file.

6
HARDWARE ALIGNMENT
This section describes how to determine and set the audio levels.
Audio Levels Overview:
To ensure the best audio quality, the scrambler must be configured to match the audio levels used by the radio.
The scrambler uses programmable gain amplifiers to accomplish this. Determining the gain settings for these
amplifiers is an involved process, so Midian simplified this process by developing an algorithm that requires the
technician to make only four voltage measurements. From these four measurements, all of the many internal
settings are determined.
Still, getting the best audio quality will likely require a bit of trial and error. The scrambler only has control of audio
voltage levels, not input and output impedances. These impedances can dramatically influence the levels.
The Four Voltage Measurements:
An oscilloscope and a communications test set/service monitor are required for the measurements. It is
recommended that the measurements be recorded in units of mV peak-to-peak. Each measurement must be
taken with system modulation at either 60% or 100%, but Midian recommends using 60%
A method for controlling transmit modulation is required for accurate measurements in the TX mode. A small
speaker held in place near the microphone by a rubber band can serve this purpose in most cases. Use a sine-
wave generator to inject a 1000 Hz tone into the speaker. Adjust the output of the sine wave generator so that the
transmitter produces 60% of rated modulation while PTT is pressed. Note that if the audio source (such as a
speaker) is moved even slightly, the TX modulation may change significantly. Care must be taken to avoid
changing the TX modulation while taking the measurements.
The first two measurements must be taken using a radio that has not been modified. The 2nd two measurements
require that the scrambler is installed and power is applied to the radio/scrambler. These measurements must be
taken within 15 seconds of powering the scrambler on. This is because the scrambler may enter power saving
mode after that time. Measurements made while the scrambler is in power saving mode will not be valid. The unit
ships with the power save feature enabled by default. The power save feature can be disabled via the KL-3
programming software so that it will not interfere with taking measurements, if desired. Please note that the levels
provided to the option board are different between narrow band and wide band.
1. RX Output: The goal of this procedure is to determine the audio level that would normally appear at the RX
audio insertion point in an unmodified radio. With a fully quieting signal modulated with a 1000 Hz tone at
60%. Measure the voltage level appearing at the junction of R-670 and IC-607 Pin 28 on the TK-2180 & TK-
3180 or at the junction of C-591 and IC-413 Pin 4 for the TK-7180 & TK-8180.
2. TX Output: The goal of this procedure is to determine the audio level that would normally appear at the TX
audio insertion point in an unmodified radio. Provide the radio an audio source generating a 1000 Hz tone and
key the radio. Adjust the audio source such that the modulation is at 60%. Measure the voltage level
appearing at the junction of R-659 and R-660 on the TK-2180 & TK-3180 or at the junction of C-485 and IC-
413 Pin 14 for the TK-7180 & TK-8180.
3. RX Input: The goal of this procedure is to determine the audio level that the scrambler board will see at the
RX audio pickup point after it is installed. The scrambler must be installed and powered-on while making this
measurement. Modulate a 1000 Hz tone at 60%. Measure the audio level at the junction of P1-22 and C-42
on the scrambler.
4. TX Input: The goal of this procedure is to determine the audio level that the scrambler board will see at the
TX audio pickup point after it is installed. The scrambler must be installed and powered-on while making this
measurement. Provide the radio the same audio source and level as in Step 2, generating a 1000 Hz tone
and key the radio. Measure the audio level at the junction of P1-21 and C-3 on the scrambler.

7
Programming the Audio Levels:
After determining the audio levels at the audio hookup points, it will be necessary to program the scrambler to
match these levels. In the programming software, there is a slider control on the Audio Levels Screen for each of
the of four audio hookup points. Locate the column that corresponds to the modulation and units of measurement
for each of the audio hookup points. Adjust the slider bar such that the value appearing in the appropriate column
matches what was measured as closely as possible. Midian recommends the following values based on 60%
modulation:
The following table shows Midian’s recommended levels in mVpp for the VS-1200, VS-110 & VS-1100 at 60%
modulation for tested models of radios:
Radio Model RX In TX In RX Out TX Out
TK-2180, TK-3180 960 mVpp 66 mVpp 960 mVpp 72 mVpp
TK-7180, TK-8180 864 mVpp 354 mVpp 858 mVpp 330 mVpp
TK-5710 912 mVpp 576 mVpp 900 mVpp 588 mVpp
The following table shows Midian’s recommended levels in mVpp for the VS-1000 and VS-1050 at 60%
modulation for tested models of radios:
Radio Model RX In TX In RX Out TX Out
TK-2180, TK-3180 924 mVpp 102 mVpp 924 mVpp 126 mVpp
TK-7180, TK-8180 816 mVpp 288 mVpp 816 mVpp 354 mVpp
TK-5710 924 mVpp 618 mVpp 924 mVpp 546 mVpp

8
HARDWARE INSTALLATION
Be certain to follow standard anti-static procedures when handling any of Midian’s products. When ordering the
scrambler, the radio must be specified as audio levels vary between radio models.
TK-2180, TK-3180:
Plug the unit into the options connector located behind the options door under the battery. Before plugging the
unit in, remove R-659 to open the radio’s TX path and R-670 to open the radio’s RX path.
COR is needed for the power save function of the scrambler. Install a wire from the scrambler into the radio. This
wire should be installed on the scrambler to the pad marked “COR IN”. The wire should then be connected to the
radio’s Q-613 collector. The scrambler’s “COR In Polarity” should be programmed as “High”.
TK-5710:
Plug the unit into the options connector CN-771 labeled Scrambler.
Due to firmware compatibility issues between the radio and the scrambler the following wires must be added
depending on the features needed:
COR: Solder a wire from the junction of R-35 and the drain of Q7 on the VS module to Pin 2 of CN728 (AUX02)
on the radio. Program the VS module for a low COR polarity.
TK-7180, TK-8180:
Plug the unit onto the options connector CN-403. Due to firmware compatibility issues between the radio and the
scrambler the following wires must be added depending on the features needed:
COR: Solder this wire to the junction of D-416 (anode), C-560 and R642. This provides the power save function of
the scrambler.

9
RADIO PROGRAMMING
TK-2180, TK-3180:
Use KPG-89 version 1.51 or higher.
Under the “Edit” menu select “Extended Function” and set “Optional Board” as “Voice Scrambler”.
Under the “Edit” menu select “Key Assignment” and set “Side 2” under the “Top/Side” tab as “Scrambler”. This
will set the button under the PTT as the mode select button.
If scrambling on a per channel basis is desired or a combination of a mode button and per channel, then from the
“Zone Information” screen click on the “Channel Edit” button. Under “Scrambler Setting” enable the “Voice
Scrambler”. For scrambling on a per channel basis, this will need to be done for each channel where scrambling
is desired. If the box is checked, the radio will power up in coded mode & when that channel is selected. When
per channel scrambling is used, it is still possible to toggle in and out of scramble mode.

10
TK-5710:
Under the “Edit” menu select “Extended Function” and set “Optional Board” as “Voice Scrambler + ANI Board”.
Under the “Edit” menu select “Key Assignment” and under the “Head 1” tab set the desired button (PF1-PF5) as
“Scrambler/Encryption”. This will set the programmed button as the mode select button. If Emergency ANI in the
VS-1200 or VS-1050 is being used PF5 must be set to “Emergency”.
If scrambling on a per channel basis is desired or a combination of a mode button and per channel, then under
Personal > System select the channel to modify. Check the box labeled “Scrambler”. For scrambling on a per
channel basis, this will need to be done for each channel where scrambling is desired. If the box is checked, the
radio will power up in coded mode & when that channel is selected. When per channel scrambling is used, it is
still possible to toggle in and out of scramble mode. If the scrambler will be used with multiple codes, then select
which code (1-4) that is desired for that channel under “Scrambler Code”. The scrambler must have been
programmed for more than one code for this feature.
Under Extended Function on the AUX tab set the DB-25 Pin 15 to a Function of COR and the Active Polarity as
Low.
The scrambler should be programmed with a PTT Out Active Polarity as Lo and change the COR IN Polarity to
Lo.

11
TK-7180, TK-8180:
Use KPG-89 version 1.51 or higher.
Under the “Edit” menu select “Extended Function” and set “Optional Board” as “Voice Scrambler”.
Under the “Edit” menu select “Key Assignment” and under the “Panel” tab set the desired button Triangle, A, B, C
or Square as “Scrambler”. This will set the programmed button as the mode select button. If using Midian’s
Kryptic ENI set the triangle button to Emergency.
If scrambling on a per channel basis is desired or a combination of a mode button and per channel, then from the
“Zone Information” screen click on the “Channel Edit” button. Under “Scrambler Setting” enable the “Voice
Scrambler”. For scrambling on a per channel basis, this will need to be done for each channel where scrambling
is desired. If the box is checked, the radio will power up in coded mode & when that channel is selected. When
per channel scrambling is used, it is still possible to toggle in and out of scramble mode.
Change the COR IN Polarity to High, the Mode Input is Latched and Low.

12
OPERATION
Scrambler Operation:
Mode Select: Press the radio key that was assigned in the radio programming. A tone will be emitted from the
radio and the symbol will appear on the display of the radio indicating scramble mode. If scrambling on a per
channel basis is being used, then switching between a scrambled or non-scrambled channel causes the symbol
to appear or disappear.
Code Select Per Channel: Codes 1-4 (VS-1200 only supports 3 codes) can be selected using 2-line binary by
programming the radio channel with the desired Scrambler Code (1-4) and enabling the Binary Select in the KL-3
programming software. Note: The TK-5710 uses a high Binary Select Polarity.
ANI Operation:
Transmitting ANI: When the PTT button is pressed and/or released the VS-1200 or VS-1050 will key the radio
and transmit the programmed ANI.
Transmitting Emergency ANI: When the Emergency button on the radio is pressed (if programmed) the VS-
1200 or VS-1050 will key the radio and transmit the programmed ENI for the programmed number of times.
TECHNICAL NOTES
Radio Compatibility: Midian has taken the utmost care to ensure the option board integrates into the radio with
minimal impact to the features of the radio. However, some features may not be available in the radio when an
option board is used. If a feature is not available, please contact Midian to see if the feature can be added.
Audio Enable: This feature currently is not supported in the TK-7180/8180. This feature provides go-ahead
beeps, ringing tones, etc.
MIDIAN CONTACT INFORMATION
Midian Electronics, Inc.
2302 East 22nd Street
Tucson, Arizona 85713 USA
Orders: 1-800-MIDIANS
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.midians.com

1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
1.2M
R42
GND
P1:10
*
R22
TP5
TP18
*
R53
100K
R15
47K
R39
0R
R44
-
+
9
10
8
U7:3
SB1
D6
560p
C2
AUDIO EN
P1:17
TP7
TP17
P4:4
3
1
2
4
5 6
U5
100p
C14
P3:2
TXI
P1:24
560p
C11
N/C
P1:7
SB1
D7
100p
C39
.1u
C30
0R
L1
4.7K
R30
.1u
C48
EMER IN
PAD1
PROG OUT
PAD4
PROG IN
PAD3
.01u
C21
2.2u
C20
0R
R45
.1u
C41
TP4
.1u
C34
75K
R19
39p
C44
+5V
P1:14
COR IN
PAD2
*
R36
TXO
P1:21
560p
C37
1.2M
R20
PTT IN
P1:4
.1uC13
.1u
C29
47K
R41
AUDIO EN
PAD6
2.2u
C26
16
13
42
11
9
4
3
37
8
47
28
24
27
20
18
36
43
46
48
45
41
644
1 2
38 40 39
34
21
22
7
35
17
19
29
25
23
26
12
10
5
15
14
33
32
30
31
49
U1
TP9
N/C
P1:11
.1u
C42
.1u
C22
P4:6
10u
C36
.1u
C46
27K
R13
*
R35
.01u
C9
SB1
D8
560p
C19
*
R52
*
R23
47K
R31
560p
C4
47K
R3
47K
R6
NTA4001
Q7
8.2K
R16
10K1%
R11
KW3 COR IN
P1:18
.1u
C10
OPT 1
P1:1
TP14
47K
R1
*
1
2
5
6
8
7
3
4
U6
.0068u
C15
16
15
33
35
36
37
38
3
11
12
20
46
21
2
39
40
41
42
32 31 13 10 45 17 43
30
29
26
27
28
5 14 34 44
1
4
6
7
8
9
18
19
22
23
24
25
47
48
U3
*
R17
OPT 6
P1:25
10K
R9
OPT 5
P1:8
1K
R32
.1u
C12
P4:3
0R
R47
560p
C43
47K
R38
.1u
C3
.1u
C23
.1u
C31
10u
C32
.1u
C7
.1u
C25
10K1%
R12
SIDE TONE
P1:15
SB1
D5
SB1
D1
TP12
RXEO
P1:22
*
R48
1
3
2 4
5
VR3
KW1 PROG IN
P1:5
7 4 8
2 5
1 6 3
U4
100K
R40
0R
R54
P3:5
SB1
D2
12p
C38
TP11
2.2u
C27
P4:2
*
R55
P4:1
36K
R21
560p
C1
56K
R18
N/C
P1:12
1K
R33
1K
R26
.1u
C28
KW3 PTT OUT
P1:19
1
3
2 4
5
VR1
P4:5
-
+
6
5
7
U7:2
SB1
D4
OPT 3
P1:2
P3:3
N/C
P1:26
47K
R2
N/C
P1:9
-
+
13
12
14
411
U7:4
220p
C24
.1u
C33
100K
R14
-
+
2
3
1
U7:1
TP16
NTA4001
Q6
C17
.0068u
C16
Y1
TRUNK DELAY
PAD7
N/C P1:16
P3:4
2R
R49
2R
R50
2R
R51
1
3
2 4
5
VR2
SB1
D9
10K
R10
TP6
47K
R4
RXEI
P1:23
.001u
C18
KW1 PTT OUT
P1:6
47K
R7
100K
R37
4.7K
R8
10u
C35
TP13
TP15
1K
R25
TP8
NTA4001
Q4
TP10
GND
P1:13
P3:1
TP2
MODE IN
P1:20
PROG OUT
P1:3
TP1
.01u
C45
TP3
0R
R43
+VIN
+3.3VDD
+3.3VDD
+3.3VA
+3.3V
VAN
VAN
VAN
VAN
+3.3V
+3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V
+3.3V
+3.3VDD
+3.3VA
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
VAN
+3.3V
+VIN
+3.3V
+3.3V
+3.3V
A_ROUTE
B_ROUTE
IN SYSTEM
SERIAL PROGR.
(SOURCE)
NOTES:
* = NOT INSTALLED
KW3 PTT IN
KW3 PTT IN
KW3 PROG IN
KW3 PROG IN
cs7508b4_vs10kw1
CJS
2007-12-16
GPC
2009-10-22
B4
1 of 1 7508
MIDIAN L CTRONICS, INC.
DAT :
D SIGN:
DWN BY:
R V:
APPR
SCH MATIC
COPYRIGHT © 2009
R V
SH T PROJ CT NUMB R
DOCUM NT NAM
VS-1000/1050-KW1
A_ROUTE
B_ROUTE
+
10u
C5
AGND
AGND
0R
R56
.01u
C47
3.3K
R24
3.3K
R28
2.2u
C40

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1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
1.2M
R42
GND
P1:10
*
R22
TP5
TP18
*
R53
100K
R15
47K
R39
0R
R44
-
+
9
10
8
U7:3
SB1
D6
560p
C2
AUDIO EN
P1:17
TP7
TP17
P4:4
3
1
2
4
5 6
U5
100p
C14
P3:2
TXI
P1:24
560p
C11
N/C
P1:7
SB1
D7
100p
C39
.1u
C30
0R
L1
4.7K
R30
.1u
C48
EMER IN
PAD1
PROG OUT
PAD4
PROG IN
PAD3
.01u
C21
2.2u
C20
0R
R45
.1u
C41
TP4
.1u
C34
75K
R19
39p
C44
+5V
P1:14
COR IN
PAD2
*
R36
TXO
P1:21
560p
C37
1.2M
R20
PTT IN
P1:4
.1uC13
.1u
C29
47K
R41
AUDIO EN
PAD6
2.2u
C26
16
13
42
11
9
4
3
37
8
47
28
24
27
20
18
36
43
46
48
45
41
644
1 2
38 40 39
34
21
22
7
35
17
19
29
25
23
26
12
10
5
15
14
33
32
30
31
49
U1
TP9
N/C
P1:11
.1u
C42
.1u
C22
P4:6
10u
C36
.1u
C46
27K
R13
*
R35
.01u
C9
SB1
D8
560p
C19
*
R52
*
R23
47K
R31
560p
C4
47K
R3
47K
R6
NTA4001
Q7
8.2K
R16
10K1%
R11
KW3 COR IN
P1:18
.1u
C10
OPT 1
P1:1
TP14
47K
R1
*
1
2
5
6
8
7
3
4
U6
.0068u
C15
16
15
33
35
36
37
38
3
11
12
20
46
21
2
39
40
41
42
32 31 13 10 45 17 43
30
29
26
27
28
5 14 34 44
1
4
6
7
8
9
18
19
22
23
24
25
47
48
U3
*
R17
OPT 6
P1:25
10K
R9
OPT 5
P1:8
1K
R32
.1u
C12
P4:3
0R
R47
560p
C43
47K
R38
.1u
C3
.1u
C23
.1u
C31
10u
C32
.1u
C7
.1u
C25
10K1%
R12
SIDE TONE
P1:15
SB1
D5
SB1
D1
TP12
RXEO
P1:22
*
R48
1
3
2 4
5
VR3
KW1 PROG IN
P1:5
7 4 8
2 5
1 6 3
U4
100K
R40
0R
R54
P3:5
SB1
D2
12p
C38
TP11
2.2u
C27
P4:2
*
R55
P4:1
36K
R21
560p
C1
56K
R18
N/C
P1:12
1K
R33
1K
R26
.1u
C28
KW3 PTT OUT
P1:19
1
3
2 4
5
VR1
P4:5
-
+
6
5
7
U7:2
SB1
D4
OPT 3
P1:2
P3:3
N/C
P1:26
47K
R2
N/C
P1:9
-
+
13
12
14
411
U7:4
220p
C24
.1u
C33
100K
R14
-
+
2
3
1
U7:1
TP16
NTA4001
Q6
C17
.0068u
C16
Y1
TRUNK DELAY
PAD7
N/C P1:16
P3:4
2R
R49
2R
R50
2R
R51
1
3
2 4
5
VR2
SB1
D9
10K
R10
TP6
47K
R4
RXEI
P1:23
.001u
C18
KW1 PTT OUT
P1:6
47K
R7
100K
R37
4.7K
R8
10u
C35
TP13
TP15
1K
R25
TP8
NTA4001
Q4
TP10
GND
P1:13
P3:1
TP2
MODE IN
P1:20
PROG OUT
P1:3
TP1
.01u
C45
TP3
0R
R43
+VIN
+3.3VDD
+3.3VDD
+3.3VA
+3.3V
VAN
VAN
VAN
VAN
+3.3V
+3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V
+3.3V
+3.3VDD
+3.3VA
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
VAN
+3.3V
+VIN
+3.3V
+3.3V
+3.3V
A_ROUTE
B_ROUTE
IN SYSTEM
SERIAL PROGR.
(SOURCE)
NOTES:
* = NOT INSTALLED
KW3 PTT IN
KW3 PTT IN
KW3 PROG IN
KW3 PROG IN
cs7508b4_vs12kw1
CJS
2007-12-16
GPC
2009-10-22
B4
1 of 1 7508
MIDIAN L CTRONICS, INC.
DAT :
D SIGN:
DWN BY:
R V:
APPR
SCH MATIC
COPYRIGHT © 2009
R V
SH T PROJ CT NUMB R
DOCUM NT NAM
VS-1200-KW1
A_ROUTE
B_ROUTE
+
10u
C5
AGND
AGND
0R
R56
.01u
C47
3.3K
R24
3.3K
R28
2.2u
C40

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