Vertex Standard VX-2100 Series User manual

©2006 VERTEX STANDARD CO., LTD. EC061N90A
VHF FM Transceiver
VX-2100 Series
VX-2200 Series
Service Manual
Specifications ...........................................................A-1
DSUB 15-pin Accessory Connector ...................... B-1
Exploded View & Miscellaneous Parts ............... C-1
Block Diagram ......................................................... D-1
Circuit Description .................................................. E-1
Alignment ..................................................................F-1
Installation of Option ............................................ G-1
Introduction
This manual provides the technical information necessary for servicing the VX-2100/-2200 Series Mobile Transceiver.
Servicing this equipment requires expertise in handing surface-mount chip components. Attempts by non-qualified
persons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal in
some countries.
Two PCB layout diagrams are provided for each double-sided board in this transceiver. Each side of the board is
referred to by the type of the majority of components installed on that side (“Side A” or “Side B”). In most cases one
side has only chip components (surface-mount devices), and the other has either a mixture of both chip and leaded
components (trimmers, coils, electrolytic capacitors, ICs, etc.), or leaded components only.
As described in the pages to follow, the advanced microprocessor design of the VX-2100/-2200 allows a complete
alignment of this transceiver to be performed without opening the case of the radio; all adjustments can be performed
from the personal computer, using with the Vertex Standard VPL-1 Programming Cable and CE82 Software.
While we believe the information in this manual to be correct, Vertex Standard assumes no liability for damage that
may occur as a result of typographical or other errors that may be present. Your cooperation in pointing out any
inconsistencies in the technical information would be appreciated.
Contents
Board Units (Schematics, Layouts & Parts)
MAIN Unit .......................................................... H-1
FRONT-A Unit (VX-2100)................................... I-1
FRONT-B Unit (VX-2200)................................... J-1
Optional Units (Schematics, Layouts & Parts)
FVP-25 Encryption/DTMF Pager Unit ............. K-1
FVP-36 Voice Inversion Type Encryption Unit .......... L-1
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
VX-2200 Series VX-2100 Series
Important Note
This transceiver was assembled using Pb (lead) free solder, based on the RoHS specification.
Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this
apparatus. The solder stated above utilizes the alloy composition required for compliance with the lead-free
specification, and any solder with the above alloy composition may be used.

Specifications
General
Frequency Ranges: 134 -174 MHz
Number of Groups: 1 groups (VX-2100 Series)
8 groups (VX-2200 Series)
Number of Channels: 8 channels (VX-2100 Series)
128 channels (VX-2200 Series)
Power Supply Voltage: 13.6 V ± 15%
Channel Spacing: 12.5 / 20 / 25 kHz
Current Consumption (Approx.): TX: 11 A, RX: 2.5 A, Standby: 250 mA
Operating Temperature Range: –22 °F to +140 °F (–30 °C to +60 °C)
Frequency Stability: Better than ±2.5 ppm
RF Input-Output Impedance: 50 Ω
Dimension (W x H x D): 6.5" x 1.8" x 6.1" inch (165 x 46 x 155 mm) (W/O knob)
Weight (Approx.): 2.87 lbs (1.3 kg)
Receiver (Measured by TIA/EIA-603-A)
Sensitivity (12 dB SINAD): 0.25 µV
Intermediate Frequency: 1st: 67.65 MHz, 2nd: 450 kHz
Adjacent Channel Selectivity: 75 dB (25 kHz)
65 dB (12.5 kHz)
Intermodulation: 73 dB (25 kHz)
70 dB (12.5 kHz)
Spurious & Image Rejection: 90 dB
Audio Output: Internal: 4 W @18 Ω, 5% THD
External: 12 W @4 Ω, 5% THD
Transmitter (Measured by TIA/EIA-603-A)
Output Power : 50 / 25 / 10 W
Modulation: 16K0F3E, 11K0F3E
Maximum Deviation: ±5 kHz (25 kHz)
±2.5 kHz (12.5 kHz)
Audio Distortion: < 3 % (@1 kHz)
Conducted Spurious Emission: 70 dB below carrier
Specifications subject to change without notice or obligation.
A-1

DSUB 15-pin Accessory Connector
Pin 1: AF IN (ANALOG INPUT)
External Microphone Input. Nominal input level is 6
mV at 600-ohm.
When connect the External Microphone to this port,
insert a 0.1 µF coupling capacitor between the micro-
phone and this port; as shown illustlation.
Pin 6: EXT PTT
Shorting this port to ground causes the transceiver to
be placed in the Transmit mode, while opening the
connection to this port returns the transceiver to the
Receive mode. Opening voltage is 5 V, closed current
approx. 5 mA.
Pin 7: TRX
This port is intended for controlling an external TX/
RX switching circuit. When the transceiver is placed
in the the Receiver mode, this port is 5 V. When the
transceiver is placed in the the Transmit mode, this port
reduse to 0 V.
Pin 8: IGN (IGNITION SENSE FEATURE)
The VX-2100/-2200 may be automatically be switched
to the STND-BY mode when the vehicle's ignition key
is turned on. Maximum current is 20 mA.
Pin 9 - 12: ACC1 - ACC4 (ACCESSORY PORT)
These port features can be programmed via the CE82
programmer. Each port is open collector output which
can sink approx. 100 mA when active. Max. output
16V.
When the input is selected, it becomes active between
2V and 16V.
Pin 13: ACC5 (ACCESSORY PORT)
The port 5 is available to set only for Output function,
and active logic is the opposite side against the Port 1
~ 4.
Max.output 5V, closed current approx. 1 mA.
(CMOS output)
Pin 14: ACC6 (ACCESSORY PORT)
The port 6 is available to set only for Input function,
and active logic is the opposite side against the Port 1
~ 4.
Max.input 5V. (CMOS input)
Pin 15: GND
Chassis ground
B-1
Pin 2: AF OUT (ANALOG OUTPUT)
Low-level receiver output. Peak signal level is 150 mV
at 600-ohm.
Pin 3: AF GND
Ground for all logic levels and power supply return.
Pin 4: DC OUT (13.6 V DC OUTPUT)
Switched 13.6V output for supplying power to an ac-
cessory.
Pin 5: RSSI (ANALOG OUTPUT)
A DC voltage proportional to the strength of the sig-
nal currently being received (Receiver Signal Strength
Indicator) is provided on this pin. This low impedance
output is gererated by the receiver IF sub-system and
bufferd by an internal op-amp. Typical output voltages
are 1 V (@No Signal Input) through 2.0 V (@50 dB Sig-
nal Input).

Note
B-2

C-1
Exploded View & Miscellaneous Parts



Non-designated parts are available only as
part of a designated assembly.



























C-2
Exploded View & Miscellaneous Parts
Note:

D-1
Block Diagram

D-2
Block Diagram
Note:

1. Circuit Configuration by Frequency
The receiver is a double-conversion superheterodyne with a
first intermediate frequency (IF) of 67.65 MHz and a second IF of
450kHz. The incoming signal from the antenna is mixed with the
local signal from the VCO/PLL to produce the first IF of 50.85MHz.
This is then mixed with the 67.2 MHz second local oscillator
output to produce the 450 kHz second IF. This is detected to
give the demodulated signal.The transmit signal frequencyis
generated by the PLL VCO and modulated by the signal from the
microphone. It is then amplified and sent to the antenna.
2. Receiver System
2-1. Front-end RF amplifier
The incoming RF signal from the antenna is delivered to the RF
Unit and passes through the Low-pass filter which removes
undesired frequencies by use of varactor diodes, tuned band-
pass filter consisting of diodes D1003 (1SV323), D1004
(1SV323), D1005 (1SV323), D1006 (1SV323) and Coils L1006
and L1009, capacitors C1013, C1016, C1033, and C1039, C1041,
C1044.
The passed signal is amplified in Q1007 (2SC3356) and more-
over cuts an image frequency with the band pass filter consist-
ing of Coils L1011, L1013 and L1014, L1015 and capacitors C1003
C1011,C1012,C1016andC1022, C1023, C1027and C1028, C1334,
C1141 and comes into the 1st mixer.
2-2. First Mixer
The 1st mixer consists of the Q1025 (3SK293). Buffered
outputfrom the VCO is amplified by Q1023 (2SC5226) to pro-
vide a purefirst local signal between 201.65 and 241.65 MHz for
injection to the first mixer. The output IF signal is entersfrom the
mixer to the crystal filter. The IF signal then passesthrough mono-
lithic crystal filters XF1001 (±5.5 kHz BW) to strip away all but
the desired signal.
2-3. IFAmplifier
The first IF signal is amplified by Q1033 (2SC5226). The
amplifiedfirst IF signal is applied to FM IF subsystem IC Q1036
(NJM2591) which contains the second mixer second local os-
cillator limiter amplifier noise amplifier and S-meter amplifier. The
signal from the refernce oscillator is tripled by Q1033 (2SC5226),
it is mixed with the IF signal and becomes 450 kHz. The second
IF then passes through the ceramic filter CF1001 (for wide chan-
nels) CF1002 (for narrow channels) to strip away unwanted mixer
products which removes amplitude variations in the 450 kHz IF
before detection of the speech by the ceramicdiscriminator
CD1001.
2-4. Audio amplifier
Detected signal from Q1036 (NJM2591V) is inputted to Q1042
(LM2902PW) and is output through the band pass filter inside
Q1042 (LM2902PW). When the optional unit is installed
Q1044 (SN74LV4066APW) is turned "OFF" and the AF sig-
Circuit Description
nal from Q1042 (LM2902PW) goes the optional unit. When
the optional unit is not installed, Q1042 (LM2902PW) is turned
"ON" and the signal goes through Q1004 (SN74LV4053APM).
The signal then goes through AF mute switch Q1044
(SN74LV4066APW) de-emphasis part Q1042 (LM2902PW).
amplified with AF power amplifier Q1003 (TDA1519CTH) after
passing AF volume Q1014 (M62364FP). The output of Q1003
(TDA1519CTH) drives a speaker (either the internal or external
speaker).
2-5. Squelch Circuit
There are 13 levels of squelch setting from 0 to 12. The level 0
means open the squelch. The level 1 means the threshold set-
ting level and level 11 means tight squelch. From 2 to 10 is estab-
lished in the middle of threshold and tight. The bigger figure is
nearer the tight setting. The level 12 becomes setting of carrier
squelch.
2-5-1. Noise Squelch
The noise squelch circuit is composed of the band pass filter of
Q1036 (NJM2591V) noise amplifier Q1047 (LM2902PW) and
noise detector D1047, D1048 (both MC2850). When a carrier
isn`t received, the noise ingredient which goes out of the de-
modulator Q1036 (NJM2591V) is amplified in Q1047
(LM2902PW) through the band pass filter Q1036 (NJM2951V)
is detected to DC voltage with D1047, D1048 (both MC2850)
and is inputted to 15 pin (the A/D port) of the Q1065 (CPU:
LC87F5CC8A). When a carrier is received the DC voltage be-
comes "LOW" because the noise is compressed. When the de-
tected voltage to CPU is "HIGH," the CPU stops AF output with
Q1044 (SN74LV4053) "OFF" by making pin 80 low. When the
detection voltage is low the CPU makes Q1068 "ON" making pin
80 "H" enabling AF output.
2-5-2. Carrier Squelch
The Pin 14 (A/D port) of Q1065 (CPU: LC87F5CC8A) detects
RSSI voltage output from pin 12 of Q1036 (NJM2591V), and
controls AF output. The RSSI output voltage changes accord-
ing to the signal strength of carrier. The stronger signal makes
the RSSI voltage higher. The process of the AF signal control is
the same as Noise Squelch. The shipping data is adjusted 3dB
higher than squelch tight sensitivity.
3. Transmitter System
3-1. Mic Amplifier
There are two micrphone inputs, J1004 (front) and J1006 (D-
Sub). Each microphone inputs has it's own amplifier. Which
micrphone is selected is controlled by the CPU and in addition,
the amplified AF signal is selected with Flat-AF selection switch
Q1043 (LM2902PW). Mic Gain is adjusted with Mic gain VR
Q1014 (M62364PF) through HPF-AMP Q1043 (LM2902PW),
and Pre Enphasis and Mic Mute Q1044 (SN74LV4066) are
passed at FLAT-AF OFF. And, the option use is selected with
E-1

OPT selection switch Q1044 (SN74LV4066) by the control
from CPU. The selected signal enters maximum deviation adjust-
ment volume Q1014 (M62364FP) after it goes out of Buffer
Amp Q1043 (LM2902PW) through limiter and splatter filter of
Q1040 (LM2902PW). The adjusted low frequency signal in-
gredient is amplified by Q1047 (LM2902PW) added modula-
tion terminal of TCXO (X1002) the FM modulation is made by
reference oscillator. The high frequency signal ingredient is
amplified Q1043 (LM2902PW), and the level is adjusted by
volume control Q1014 (M62364FP) to make frequency bal-
ance between low frequency. After that, the signal is delievered
to the tranmsit carrier by modulator D1023 (HVC383B).
3-2. Drive and Final amplifier
The modulated signal from the VCO Q1031 (2SC3356) is buff-
ered by Q1027 (2SC5226) and amplified by Q1015 (2SC3357).
The low-level transmit signal is then applied to the Power Mod-
ule Q1009 (S-AV32) for final amplification up to 50 watts out-
put power. The transmit signal then passes through a low-pass
filter to suppress harmonic spurious radiation before delivery to
the antenna.
3-3. Automatic Transmit Power Control
The output power of Power Module is detected by CM coupler,
and is detected by D1008 and D1038 (both HSM88AS) and is
inputted to comparator Q1048 (LM2902PW). The comparetor
compares two different voltages and makes output power stable
by controlling the bias voltage of the power module. There are 3
levels of output power (Hi, Mid and Lo) which is switched by
the voltage of Q1014-CH1 (M62364FP).
3-4. PLL Frequency Synthesizer
The frequency synthesizer consists of PLL IC Q1054
(ADF411BRU) VCO, TCXO (X1002)and buffer amplifier. The
output frequency from TCXO is 16.8 MHz and the tolerance is
±2.5 ppm (in the temperature range -30 to +60 degrees).
3-4-1. VCO
While the radio is receiving, the RX oscillator Q1029 (2SK508)
in the VCO generates a programmed frequency between 201.65
and 241.65 MHz as 1st local signal. While the radio is transmit-
ting the TX oscillator Q1031 (2SC3356) in the VCO generates
a frequency between 134 and 174 MHz. The output from oscilla-
tor is amplified by buffer amplifier Q1027 (2SC5226) and be-
comes the output of the VCO. The output from VCO is divided
one is amplified by Q1024 (2SC5226) and feed back to pin 6 of
the PLL IC Q1054 (TRF3750IP). The other is amplified in Q1023
(2SC5226) and in case of the reception it is put into the mixer as
the 1st local signal through D1020 (DAN222) in transmission it
is amplified in Q1027 (2SC5226) and more amplified in Q1023
(2SC5226) through D1022 (DA222) and it is put the input ter-
minal of the Power Module Q1009 (S-AV32).
3-4-2. VCV CNTL
Tuning voltage (VCV) of the VCO expands the lock range of
VCO by controlling the of varactor diode voltage and the con-
trol voltage from PLL IC Q1054 (ADF4111BRU). Control volt-
age is added to the varactor diode after converted to D/A con-
verter Q1029 (M62364FP).
3-4-3. PLL
The PLL IC Q1054 (ADF4111BRU) consists of reference di-
vider, main divider, phase detector, charge pumps and Pulse
Swallow Frequency Synthesis. The reference frequency from
TCXO is inputted to pin 8 of PLL IC Q1054 (ADF4111BRU)
and is divided by reference divider. This IC is decimal point
dividing PLL IC Q1054 (ADF4111BRU) and the dividing ratio
becomes 1/8 of usual PLL frequency step. Therefore, the output
of reference divider is 8 times of frequencies of the channel step.
For example when the channel stepping is 5 kHz, the output of
reference divider becomes 40 kHz. On the other hand, inputted
feed back signal to pin 6 of PLL IC Q1054 (ADF4111BRU) from
VCO is divided with the dividing ratio which becomes same
frequency as the output of reference divider. These two signals
are compared by phase detector, a phase pulse is generated.
The phase difference pulse and the pulse from fractional accu-
mulator pass through the charge pumps and LPF. This becomes
the DC voltage (VCV) to control the VCO. The oscillation fre-
quency of VCO is locked by the control of this DC voltage. The
PLL serial data from CPU Q1065 (CPU: LC87F5CC8A) is sent
with three lines of SDO (pin 12), SCK (pin 11) and PSTB (pin 13).
The lock condition of PLL is output from the UL (pin 14) terminal
and UL becomes "H" at the time of the lock condition and be-
comes "L" at the time of the unlocked condition. The CPU Q1065
(CPU: LC87F5CC8A) always watches over the UL condition,
and when it becomes "L" unlocked condition, the CPU Q1065
(CPU: LC87F5CC8A) prohibits transmitting and receiving.
Circuit Description
E-2

Introduction
The VX-2100/-2200 series has been aligned at the factory
for the specified performance across the entire frequency
range specified. Realignment should therefore not be nec-
essary except in the event of a component failure. All com-
ponent replacement and service should be performed only
by an authorized Vertex Standard representative, or the
warranty policy may be voided.
The following procedures cover the sometimes critical and
tedious adjustments that are not normally required once
the transceiver has left the factory. However, if damage
occurs and some parts are replaced, realignment may be
required. If a sudden problem occurs during normal op-
eration, it is likely due to component failure; realignment
should not be done until after the faulty component has
been replaced.
We recommend that servicing be performed only by au-
thorized Vertex Standard service technicians who are ex-
perienced with the circuitry and fully equipped for repair
and alignment. Therefore, if a fault is suspected, contact
the dealer from whom the transceiver was purchased for
instructions regarding repair. Authorized Vertex Standard
service technicians realign all circuits and make complete
performance checks to ensure compliance with factory
specifications after replacing any faulty components.
Those who do undertake any of the following alignments
are cautioned to proceed at their own risk. Problems
caused by unauthorized attempts at realignment are not
covered by the warranty policy. Also, Vertex Standard
must reserve the right to change circuits and alignment
procedures in the interest of improved performance, with-
out notifying owners. Under no circumstances should any
alignment be attempted unless the normal function and
operation of the transceiver are clearly understood, the
cause of the malfunction has been clearly pinpointed and
any faulty components replaced, and the need for realign-
ment determined to be absolutely necessary. The follow-
ing test equipment (and thorough familiarity with its cor-
rect use) is necessary for complete realignment. Correc-
tion of problems caused by misalignment resulting from
use of improper test equipment is not covered under the
warranty policy. While most steps do not require all of
the equipment listed, the interactions of some adjustments
may require that more complex adjustments be performed
afterwards. Do not attempt to perform only a single step
unless it is clearly isolated electrically from all other steps.
Have all test equipment ready before beginning, and fol-
low all of the steps in a section in the order presented.
Required Test Equipment
Radio Tester with calibrated output level at 200 MHz
In-line Wattmeter with 5% accuracy at 200 MHz
50-ohm, 50-W RF Dummy Load
Regulated DC Power Supply (standard 13.6V DC, 15A)
Frequency Counter: ±0.2 ppm accuracy at 200 MHz
AF Signal Generator
AC Voltmeter
DC Voltmeter
VHF Sampling Coupler
Microsoft® Windows® 95 or later operating system
Vertex Standard VPL-1 Connection Cable and CE82
Alignment program
Alignment Preparation & Precautions
A 50-ohm RF Dummy load and in-line wattmeter must be
connected to the main antenna jack in all procedures that
call for transmission, except where specified otherwise.
Correct alignment is not possible with an antenna.
Beacuse of the BTL (Bridged TransLess) Amplifier circuit
used in the VX-2200/-2100, do not connect eather side of
the speaker leads to chassis "ground."
After completing one step, read the following step to de-
termine whether the same test equipment will be required.
If not, remove the test equipment (except dummy load
and wattmeter, if connected) before proceeding.
Correct alignment requires that the ambient temperature
be the same as that of the transceiver and test equipment,
and that this temperature be held constant between 20 °C
and 30 °C (68 °F ~ 86 °F). When the transceiver is brought
into the shop from hot or cold air, it should be allowed
time to come to room temperature before alignment.
Whenever possible, alignments should be made with os-
cillator shields and circuit boards firmly affixed in place.
Also, the test equipment must be thoroughly warmed up
before beginning.
Note: Signal levels in dB referred to in this procedure are
based on 0 dBµ EMF = 1.0 µV.
Alignment
F-1

Alignment
Test Setup
Setup the test equipment as shown for transceiver align-
ment, apply 13.6V DC power to the transceiver. Refer to
the drawings above for Alignment Points.
The Alignment Tool Outline
Installation the tool
Install the CE82 (Clone Editor) to your PC.
The re-alignment for VX-2200/-2100 series may use
the "Alignment" menu of CE82.
Action of the switches
When the transceiver is in alignment mode, the action of
PTT and KEY is ignored. All of the action is remote con-
trolled by PC.
Basic Alignment Mode
The Basic Alignment mode allows you to align the entire
radio. The value of each parameter can be changed to the
desired position by use of the “” / “” and up/down
arrow keys, along with direct number input and drag-
ging of the PC mouse.
To enter the Basic Alignment Mode, select “Basic Align-
ment” in the main “Radio” menu. It will start to “Up-
load” the written personalized data from the radio. Press-
ing the “OK” button will then start the Basic Alignment
Mode.
Transceiver
Inline
Wattmeter
Power Supply
13.6 VDC
Deviation Meter
Frequency
Counter
RF
Signal Generator
50-ohm
Dummy Load
MIC
COM Port
ANT
RF Sampling
Coupler
DC INPUT
VPL-1
Connection Cable
F-2
Note: when all items are to be aligned, it is strongly rec-
ommended to align them according to following sequence.
When the item is selected with TAB key, and the F1 key is
pushed, the “Help” file is displayed.
Detailed information for each step may be found in the
“Help” file within CE82 (Clone Editor).
1. RX VCO Tune Voltage (RX VCO)
2. TX VCO Tune Voltage (TX VCO)
3. PLL Reference Frequency (Frequency)
4. RX Sensitivity (RX Tune)
5. Squelch (SQL)
6. TX Power
7. Maximum Deviation <Wide> / <Narrow>
8. Sub Audio Deviation <CTCSS> / <DCS>
9. Sequential Tone Deviation

Alignment
F-3
1. RX VCO Tune Voltage (RX VCO)
This parameter is to align the "Tune Voltage" of RX VCO. This alignment will be done automatically between the radio
and PC.
1. Press the "Start" button on the "Basic Alignment" win-
dow to open the RX VCO Adjustment window.
2. Press the "Start" button to start the alignment then
the "OK" and "Cancel" buttons are inhibited during
the alignment.
3. The aligned value will appear and the "OK", "Cancel"
buttons come alive when auto-alignment is finished.
4. Press the "OK" button on the window, the value of the
alignment for RX VCO will be saved in the radio.
2. TX VCO Tune Voltage (TX VCO)
This parameter is to align the "Tune Voltage" of TX VCO. This alignment will be done automatically between the radio
and PC.
1. Press the "Start" button on the "Basic Alignment" win-
dow to open the TX VCO Adjustment window.
2. Press the "Start" button to start the alignment then
the "OK" and "Cancel" buttons are inhibited during
the alignment.
3. The aligned value will appear and the "OK", "Cancel"
buttons come alive when auto-alignment is finished.
4. Press the "OK" button on the window, the value of the
alignment for TX VCO will be saved in the radio.
Unit
During alignment, the values of dBµV or µV (EMF or
PD) can be selected or dBm.

4. RX Sensitivity (RX Tune)
This parameter is to align the RX BPF (Band Pass Filter) for Rx sensitivity. It must be done both alignments of the "RX
VCO Tune Voltage" and "PLL Reference Frequency" before this alignment is going to start.
1. Press the "Start" button to start the alignment.
2. Set the Signal Generator according to the indication,
then press "OK".
3. Repeat the procedure no.2 until the 3point alignment
is finished.
4. It will show the result of 3 points alignment and press
"OK" then the confirmation window will open.
5. Press "OK" to finish the RX Sensitivity alignment and
save the data.
5. Squelch (SQL)
This parameter is to align the SQL (Squelch) Sensitivity. The "RX VCO Tune Voltage", "PLL Reference Frequency" and "RX
Sensitivity (RX Tune)" must be done before this alignment is started.
There are several alignments as follows in the Squelch Sensitivity.
Noise SQL Tight <Wide> (TH NSQ W)
The Alignment for the Noise SQL Tight level at Wide (5k/
4k).
Noise SQL Threshold <Wide> (TH NSQ W)
The Alignment for the Noise SQL Threshold level at Wide
(5k/4k).
RSSI SQL Level 11 <Wide> (RSSI SQL W)
The Alignment for the "level 11" of the RSSI SQL level at
Wide (5k/4k).
3. PLL Reference Frequency (Frequency)
This parameter is to align the reference frequency for PLL. The "TX VCO Tune Voltage" alignment must be done before
this alignment is going to start.
1. Press the "Start" button to start the alignment then
the radio will transmit on the center frequency. It will
appear the Frequency Alignment window.
2. Set the value to get desired frequency by left/right ar-
row key, drag the slide bar by mouse or direct num-
ber input.
3. Press the "OK" button on the alignment window to
save the re-aligned value, the alignment of the PLL
Reference Frequency is accomplished.
Alignment
F-4

RSSI SQL Full Scale <Wide> (S Full Scale W)
The Alignment for the RSSI Full Scale level at Wide (5k/
4k).
Noise SQL Tight <Narrow> (TI NSQ N)
The Alignment for the Noise SQL Tight level at Narrow
(2.5k).
Noise SQL Threshold < Narrow > (TH NSQ N)
The Alignment for the Noise SQL Threshold level at Nar-
row (2.5k).
RSSI SQL Level 11 < Narrow > (RSSI SQL N)
The Alignment for the "level 11" of the RSSI SQL level at
Narrow (2.5k).
RSSI SQL Full Scale < Narrow > (S Full Scale N)
The Alignment for the RSSI Full Scale levle at Narrow
(2.5k).
The procedure for all the alignment is as follows.
1. Press the “Start” button to start the alignment.
2. Set the signal generator according to the level indi-
cated, then press "OK".
3. Press the “OK” button after finish the alignment, then
the data will be saved and the alignment is accom-
plished.
6. TX Power
Open the "Basic2" window, this parameter is to align the Transmit Output (Hi/Low) Power.
The factory default is as followings.
High High power version: 50W
Low-High High power version: 25W
Low-Mid High power version: 10W
The procedure for the alignments of the TX Power is fol-
lowings.
1. Press the "Start" button to start the alignment then
the radio will transmit on the center frequency. The
TX Power Alignment window will open on the PC.
2. Set the value to get desired output power by left/right
arrow key, drag the slide bar by mouse or direct num-
ber input.
3. Press the "OK" button on the alignment window to
save the re-aligned value, the alignment of the TX
POWER is accomplished.
Alignment
F-5

9. Sequential Tone Deviation
This parameter is to align the "Sequential Tone Deviation" (for 2-Tone, 5-Tone and DTMF sequential tones).
1. Press the "Start" button to start the alignment.
2. Set the value to get desired deviation by changing the
slide bar on your PC.
3. Press the "OK" button after getting the desired value
to save the re-aligned value, the alignment of the SE-
QUENTIAL TONE DEVIATION is accomplished.
8. Sub Audio Deviation <CTCSS> / <DCS>
This parameter is to align the Deviation of Sub-Audio (CTCSS/DCS). The "TX VCO Tune Voltage" and "Max Deviation"
must be done before this alignment is started.
1. Press the "Start" button to start the alignment.
2. Set the value to get desired deviation (Wide: 0.6kHz)
on the deviation meter by changing the slide bar on
your PC.
3. Press the "OK" button after getting the desired value
to save the re-aligned value, the alignment of the MAX
DEVIATION is accomplished.
7. Maximum Deviation <Wide> / <Narrow>
This parameter is to align the Maximum Deviation (Wide/Narrow). The "TX VCO Tune Voltage" must be done before this
alignment is started.
1. Press the "Start" button to start the alignment.
2. Set the value to get desired deviation (Wide: 4.2kHz,
Narrow: 2.1kHz) on the deviation meter by changing
the slide bar on your PC.
3. Press the "OK" button after getting the desired Devia-
tion to save the re-aligned value, the alignment of the
MAX DEVIATION is accomplished.
Alignment
F-6

CH (Channel-by-Channel) Fine Alignment Mode
The CH Fine Alignment Mode allows you to align the ra-
dio separately for every operating channel. The value of
each parameter can be changed to the desired position
using the “” / “” and up/down arrow keys, direct
number input, and by dragging the PC mouse.
To enter the CH Fine Alignment Mode, select “CH Fine
Alignment” in the main “Radio” menu. It will start to
“Upload” the written personalized data from the radio.
Pressing the “OK” button will then start the CH Fine
Alignment Mode.
Note: Detailed information for each step may be found in
the “Help” file within CE82 (Clone Editor).
Alignment
F-7

Installation of Option
G-1
The FVP-25 is an Encryption/DTMF Pageing Unit which
permits secure voice communications with station within
your network, while preventing others from listening us-
ing normal communications equipment. It allows paging,
and enables selective calling using DTMF tone sequences.
The FVP-35 is an Rolling Code Encryption Unit which
permits secure voice communications with station within
your network, while preventing others from listening us-
ing normal communications equipment.
The FVP-36 is an Voice Inversion Type Encryption Unit
which permits secure voice communications with sta-
tion within your network, while preventing others from
listening using normal communications equipment.
Each optional Unit is easily programmed the configula-
tions using a Vertex CE82 programmer with an IBM PC-
compatible computer.
1. Disconnect the DC power cable.
2. Referring to Figure 1, remove the 8 screws affixing the
Top Cover, then remove the top cover.
3. Referring to Figure 2 & Figure 3, locate the empty con-
nector for the Optional Unit, connect the Optional Unit
here.
4. Replace the Top Cover and 8 screws . Installation is
now complete.
Do not install all Optional Unit at onece
Figure 1 Figure 2 Figure 3
¬
FVP-25/FVP-35/FVP-36

H-1
MAIN Unit
Circuit Diagram
EXT SP Jack
SP
5.0V
RX:0V
TX:5.0V
RX:5.1V
TX:0V
RX:0V
TX:5.0V
5.0V
12.9V
5.2V
5.2V
13.6V
SHIFT ON:0.1V
SHIFT OFF:3.4V
5.0V
POW OFF:0V
POW ON:5.5V
5.0V
7.9V
2.1V
2.1V
2.1V
5.2V
2.1V
8.1V
3.5V
MUTE:0V
UNMUTE:5.0V
5.2V
5.1V
5.0V
5.0V
RX:5.1V
TX:0V
2.1V
2.1V
RX:5.1V
TX:0V
HOOK ON:5.1V
HOOK OFF:0.3V
5.2V
5.2V
2.1V
5.0V
AF OFF:5.0V
AF ON:0V
13.6V
-120.5dBm
RX:0V
TX:0.9V
POWER OFF:0V
POWER ON:13.6V
RX:2.2V
TX:1.9V
8.1V
RX:0V
TX:8.0V 8.1V
4.3V
RX:0V
TX:5.0V
RX:1.9V
TX:0.4V
RX:0V
TX:8.0V
RX:8.1V
TX:0V
RX:8.1V
TX:0.4V
RX:5.4V
TX:3.7V
RX:0V
TX:0.2V
RX:0V
TX:5.0V
50W:4.3V
10W:3.1V
RX:2.5V
TX:5.9V
+27.5dBm
RX:13.6V
TX:13.6V
RX:7.5V
TX:0V
-121.5dBm
-123.8dBm (C1046 removed)
RX:2.0V
TX:0V
RX:1.3V
TX:0V
RX:7.5V
TX:0V
-103.0dBm
-108.5dBm (C1093 removed)
-103.0dBm
-111.0dBm (C1146 removed)
RX:7.4V
TX:0V
RX:1.4V
TX:0V
RX:3.2V
TX:3.3V
RX:0.4V
TX:0.7V
2.5V
0V
RX:0.6V
TX:0.7V RX:2.2V
TX:2.3V
RX:5.0V
TX:0V
3.3V
RX:3.3V
TX:4.3V
2.1V
4.5V
@25°C
2.1V
2.0V
5.2V
RX:0V
TX:8.0V
RX:4.0V
TX:3.9V
RX:8.0V
TX:0V
RX:0V
TX:1.7V
RX:1.0V
TX:1.7V
RX:7.0V
TX:7.3V
RX:7.3V
TX:7.0V
4.5V
7.3V
67.65MHz
-108.5dBm
-110.0dBm (C1198 removed)
RX:2.0V
TX:0V RX:4.3V
TX:0V
RX:1.2V
TX:0V
67.65MHz
-81.5dBm
-102.5dBm (C1230 removed)
RX:8.0V
TX:0V
RX:2.2V
TX:0V
8.1V
WIDE:5.3V
NARROW:0V
WIDE:0V
NARROW:4.9V
RX:1.3V
TX:0V
8.1V
5.0V
5.2V
5.1V
2.5V
2.3V
5.2V
RX:0.7V
TX:0V
LOCK:5.1V
UNLOCK:0V
2.1V
RX:1.3V
TX:0.4V
RX:1.2V
TX:0.4V
0.7V

H-2
MAIN Unit
Note