VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
VHF Low-Band FM Transceiver
VX-6000L
Service Manual
©2009 VERTEX STANDARD CO., LTD. EC024L90B
10900 Walker Street, Cypress, CA 90630, U.S.A.
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
VERTEX STANDARD (AUSTRALIA) PTY., LTD.
Normanby Business Park, Unit 14/45 Normanby Road
Notting Hill 3168, Victoria, Australia
Introduction
This manual provides technical information necessary for servicing the VX-6000L FM Transceiver.
Servicing this equipment requires expertise in handling 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 circuit board in the Transceiver. Each side of is referred
to by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most cases one side has
only chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolytic
capacitors, ICs, etc.), or leaded components only.
While we believe the technical 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.
Important Note
After Lot. 13 of 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.
Contents
Operating Manual Reprint......................... 1-1
Cloning ..................................................................
2-1
Specifications................................................ 2-2
Exploded View & Miscellaneous Parts ... 3-1
Block Diagram .............................................. 3-2
Interconnection Diagram ........................... 3-4
Circuit Description .....................................4-1
Alignment...................................................... 5-1
Board Unit (
MAIN Unit........................................................... 6A-1
DISPLAY Unit ...................................................... 6B-1
KEY Unit ............................................................... 6C-1
VR Unit ................................................................. 6D-1
MIC CONN Unit................................................. 6D-2
MIC CONN Unit................................................. 6D-3
PA Unit .................................................................. 6E-1
NB Unit ................................................................. 6F-1
Optional Board Unit (
F2D-8 2-Tone Decode Unit ................................ 7A-1
VTP-50 VX-Trunk Unit ....................................... 7B-1
FVP-25 Encryption / DTMF Pager Unit ...........7C-1
F5D-14 5-Tone Unit ............................................ 7D-1
FIF-7 Connection Unit ......................................... 7E-1
Schematics, Layouts & Parts
Schematics, Layouts & Parts
)
)
1
Front Panel
Operating Manual Reprint
CONTROLS & CONNECTORS
edfg
c
POWER
h
i
POWER Button
Press the button to turn the transceiver ON and
OFF.
TX Indicator
This lamp glows red when the radio is transmit-
ting.
BUSY Indicator
This lamp glows green when the channel is busy.
Liquid Crystal Display
The display include an 8-character alpha-numeric
section showing channel and group names, sta-
tus and identity information, and error messages.
Additional indicators on the display show prior-
ity channel assignments and scan include / ex-
clude selection.
This channel on
“SELECTABLE TONE” List
This channel on “PUBLIC
ADDRESS” or “SPEAKER”
List
This channel on
“HORN ALERT” List
This channel
on “OPTION”
List
This channel on “INTERCOM” List
Receiver Monitor
This channel on
“SCAN” List
Channel Group
jkl
Number
SS
TT
S/
T Button
SS
TT
Pressing these buttons changes the current group
(and displayed group number or name). Holding
this button for more than 1/2 second causes the
function to repeat.
SQC Indicator
This lamp glows orange when incorrect position
at the setting of CE49.
Programmable Function Button (PF button)
This button can be set up for special applications,
such as high/low power selection, monitor, dim-
mer, talk-around, and call alert function, as de-
termined by your network requirements and pro-
grammed by your VERTEX STANDARD dealer.
VOLUME Knob
This knob sets the volume of the receiver.
EMERGENCY Microphone
The emergency microphone is located behind this
small slit. When the emergency feature is acti-
vated, this Microphone is enabled.
CHANNEL Selector Knob
This knob select the operating channel.
Programmable Function Button (PF button)
This button can be set up for special applications,
such as high/low power selection, monitor, dim-
mer, talk-around, and call alert function, as de-
termined by your network requirements and pro-
grammed by your VERTEX STANDARD dealer.
8 Character Alpha-numeric Display
This channel on “AUX A/B/C” List
1-1
Operating Manual Reprint
CONTROLS & CONNECTORS
Side Panel
Microphone Jack (It is on both sides.)
Connect the microphone plug to this jack.
Microphone Jack
REAR (Heatsink)
Antenna Socket
The 50-ohm coaxial feedline to the antenna must
be connected here, using a type-M (PL-259) plug.
External Speaker Jack
An external loudspeaker may be connected to this
2-contact, 3.5-mm mini-phone jack.
Caution: Do not connect this line to ground, and be
certain that the speaker has adequate capa-
bility to handle the audio output from the
VX-6000.
edc
f
13.4-V DC Power Connector
The supplied DC power cable must be connected
to this 4-pin connector. Use only the supplied
fused cable, extended if necessary, for power con-
nection.
DSUB 25-Pin Accessory Connector
External TX audio line input, PTT (Push To Talk),
Squelch, and external RX audio line output sig-
nal may be obtained from this connector for use
with accessories such as data transmission/recep-
tion modems, ets.
1-2
Operating Manual Reprint
BASIC OPERATION OF THE TRANSCEIVER
Important! - Before turning on the radio the first time,
confirm that the power connections have been made cor-
rectly and that a proper antenna is connected to the an-
tenna jack.
Switching Power ON/OFF
Push the POWER switch turn on the radio. The
display will become illuminated. The radio will
start up on the last channel used prior to shut-
down during the previous operating session.
Turn the CHANNEL selector knob to choose the
desired operating channel. A channel name will
appear on the display. If you want to select the
operating channel from a different Memory Chan-
nel Group, press the UP (S) or DOWN (T) but-
ton to select the Memory Channel Group you
want before selecting the operating channel.
Setting the Volume
Turn the VOLUME knob clockwise to increase the
volume, and counterclockwise to decrease it. If
no signal is present, press and hold in the MON
button more than 1/2 seconds; background noise
will now be heard, and you may use this to set
the VOLUME knob for the desired audio level.
Press and hold the MON button more than 1/2 sec-
onds to quiet the noise and resume normal (quiet)
monitoring.
Transmitting
To transmit, wait until the “BUSY” indicator is
off (the channel is not in use), and press the PTT
(Push-To-Talk) switch on the side of the micro-
phone (the “TX” indicator will appear or the “TX”
indicator will glow red). While holding in the PTT
switch, speak across the face of the microphone
in a clear, normal voice level, and then release the
PTT switch to receive.
Selecting Groups and Channels
P Press the UP (S) or DOWN (T) button (repeat-
edly, if necessary) to select a different group of
channels.
P Turn the CHANNEL selector knob to select a
different channel within the current group.
Automatic Time-Out Timer
If the selected channel has been programmed for
automatic time-out, you must limit the length of
each transmission. While transmitting, a beep will
sound five seconds before time-out. Another beep
will sound just before the deadline; the “TX” in-
dicator will disappear and transmission will cease
soon thereafter. To resume transmitting, you must
release the PTT and wait for the “penalty timer”
to expire (if you press the PTT before this timer
expires, the timer restarts, and you will have to
wait another “penalty” period.)
1-3
Operating Manual Reprint
ADVANCED OPERATION
Programmable Function Button (PF button)
The VX-6000 includes the seven Programmable
Function Buttons (PF button). The PF button
functions can be customized, via programming
by your VERTEX STANDARD dealer, to meet
your communications/network requirements.
Some features may require the purchase and in-
stallation of optional internal accessories. The
possible PF button programming features are il-
POWER
Functions
None
SCAN (SCN)
Dual Watch
Call/Reset
Talk-Around (TA)
Noise Blanker* (NB)
Alpha Numeric (A/N)
DIMMER (DIM)
Emergency (EMG)
Horn Alert (HA)
Home Channel (HOM)
Intercom (IC)
Low Power (LOW)
GRP UP
GRP DWN
CH UP
CH DWN
AUX A
AUX B
AUX C
Public Address (PA)
Monitor (MON)
RCL
Selectable Tone (ST)
SP**
Squelch Level (SQL)
Compander
Encryption*** (OPT)
* for VX-6000L ** requires RMK-4000 *** requires Encryption Unit
<1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec <1.5 sec >1.5 sec
Programmable Function Button (PF button)
lustrated at the below, and their functions are ex-
plained on next page.
For further details, contact your VERTEX STAN-
DARD dealer. For future reference, check the box
next to each function that has been assigned to
the PF button on your particular radio, and keep
it handy.
1-4
Operating Manual Reprint
ADVANCED OPERATION
Channel Scan
The Scanning feature is used to monitor multiple
signals programmed into the transceiver. While
scanning, the transceiver will check each channel
for the presence of a signal, and will stop on a
channel if a signal is present.
To activate scanning:
P Press the assigned PF button of the “Scan” mo-
mentarily to activate scanning.
P The scanner will search the channels, looking
for active ones; it will pause each time it finds
a channel on which someone is speaking.
To stop scanning
P Press the assigned PF button of the “Scan”.
P Operation will revert to the channel to which
the CHANNEL selector knob is set.
Note:Your dealer may have programmed your
radio to stay on one of the following chan-
nels if you press the PTT switch during scan-
ning pause:
Current channel (“Talk Back”)
U
“Last Busy” channel
U
“Priority” channel
U
“Home” channel
U
Scan Start” channel
U
Dual Watch
The Dual Watch feature is similar to the Scan fea-
ture, except that only two channels are monitored:
U The current operating channel; and
U The “Priority” channel.
To activate Dual Watch:
P Press the assigned PF button of the “Dual
Watch”.
P The scanner will search the two channels; it
will pause each time it finds a channel on which
someone is speaking.
P Press the assigned PF button of the “Dual
Watch”.
P Operation will revert to the channel to which
the CHANNEL selector knob is set.
ARTS (Auto Range Transpond System)
This system is designed to inform you when you
and another ARTS-equipped station are within
communication range.
During ARTS operation, your radio automatically
transmits for about 1 second every 25 (or 55) sec-
onds (the interval is programmed by Dealer) in
an attempt to Shake hands with the other station.
If you move out of range for more than one min-
utes, your radio senses that no signal has been
received, a ringing beeper will sound. If you sub-
sequently move back into range, as soon as the
other station transmits, your beeper will sound.
The PF Button Function
The PF (Programmable Function) button can be
programmed by the dealer to provide two of the
other functions described below.
To activate the primary Accessory function, press
the PF button momentarily. To access the second-
ary Accessory function (which may include the
Alarm), press and hold the PF button for 1.5 sec-
onds or longer.
Call/Reset
When this feature is programmed and a selective
call has been received, momentarily press the as-
signed PF button of the “Call/Reset” to reset the
flashing indicator and mute the receiver, other-
wise press the assigned PF button of the “Call/
Reset” to sent your radio’s identification code
(ANI) to the dispatcher.
Talk-Around
The feature causes the assigned PF button of the
“Talk-Around” to select simplex operation on
semi-duplex channels: the transmit frequency
becomes the same as the receive frequency (re-
gardless of any programmed offset for the chan-
nel).
Note:This feature has no effect on simplex channels.
After pressing the button, “-TAKARD-” is displayed
on the LCD.
Noise Blanker (for VX-6000L)
Because local noise can be particularly trouble-
some in the VHF Low-Band frequency spectrum,
the Low-Band version of the VX-6000 includes a
Noise Blanker feature, which may be toggled on
and off by pressing the assigned PF
“Noise Blanker” for the appropriate length of
time.
of the
1-5
Operating Manual Reprint
ADVANCED OPERATION
Alpha Numeric
Press the assigned PF button of the “Alpha Nu-
meric” to switch the display between the Group/
Channel number, and the Group/Channel name
(alphanumeric). A tone will sound each time you
switch between numerical and alphanumerical
display.
DIM
Press the assigned PF button of the “DIM” to ad-
just the brightness of the display and key
backright.
EMG (Emergency)
Press the assigned PF button of the “EMG” to
initiate an emergency call (requires ANI board).
When an emergency call is made, not tone is emit-
ted and the display does not change. To end the
emergency call, turn the transceiver power OFF.
HA (Horn Alert)
Press the assigned PF button of the “HA” to turn
the Horn Alert function ON or OFF. If you receive
a call from the base station with 2Tone or DTMF
signaling, horn alert will activate.
When you turn Horn Alert ON, a tone will sound
and “
” appears on the display.
Home (Home Channel)
Press the assigned PF button of the “Home” to
select the pre-programmed Home Channel. Press
it again to return to the previous channel. If used
while scanning, pressing this key a second time
will change to the revert channel.
IC (Intercom)
This feature requires dual head configuration.
Press the assigned PF button of the “IC” to turn
the intercom feature ON or OFF. While ON, you
can press the PTT switch to communicate to an-
other control head operator without transmitting
over the air. When you press this key, a tone
sounds and “
tercom can be used even while scanning and re-
ceiving a call.
” appears on the display. The in-
Low Power
Press the assigned PF button of the “Low Power”
to set the radio's transmitter to the “Low Power”
mode.
Press this key again to return to “High Power”
operation when in difficult terrain.
GRP UP/DWN
Press the assigned PF button of the “GRP UP” or
“GRP DWN” to select a different group of chan-
nels.
CH UP/DWN
Press the assigned PF button of the “CH UP” or
“CH DWN” to select a different channel within
the current group.
AUX A/B/C
Press the assigned PF button of the “AUX A”,
“AUX B”, or “AUX C” to turn the output port (re-
spectively).
PA (Public Address)
Press the assigned PF button of the “PA” to use
the transceiver as a PA amplifier. When you en-
able this function, a tone sounds and “ ” ap-
pears on the display. The public address can be
used even while scanning and receiving a call.
MONI (Monitor)
Press the assigned PF button of the “MONI” mo-
mentarily to cancel CTCSS and DCS signaling
squelch; the “MON” icon appears on the display.
Press and hold this key for 1/2 seconds to hear
background noise (unmute the audio); the MON
icon blinks on the display.
RCL (Channel Recall)
During scan, you can press the assigned PF but-
ton of the “RCL” to select the last called channel.
ST (Selectable Tone)
Press the assigned PF button of the “Selectable
Tone”, then rotate the CHANNEL selector knob
to select a 2-Tone.
SP
Press the assigned PF button of the “SP” to switch
“Front panel”, “Front panel & Body” and “Body”
speaker. When “Body” is selected, a tone sounds
and the “
can use this function while scanning and receiv-
ing a call. However, all audio will be emitted from
the PA speaker.
” icon appears on the display. You
1-6
ADVANCED OPERATION
SQL (Squelch Level)
You can manually adjust the squelch level using
this function:
1. Press the assigned PF button of the “SQL”. A
tone sounds and SQL appears on the display
with the current squelch level.
2. Rotate the CHANNEL selector knob to select
the desired level.
3. Press the this key. A tone sounds and the dis-
play returns to the normal channel.
COMP (Compander)
Press the PF button assigned to the “COMP”
function to turn the “Compander” IC ON or OFF.
This IC contains two variable gain circuits con-
figured for compressing and expanding the dy-
namic range of the radio's transmitted audio sig-
nal.
When you enable this function, the signal-to-noise
radio can be improved by reducing the transmit-
ted audio dynamic range.
Encryption (Option)
When the Voice Scrambler feature is enabled,
pressing the assigned PF button of the “Encryp-
tion” toggles the Scrambler on and off.
1-7
Operating Manual Reprint
OPTIONAL ACCESSORIES
MH-53
MH-53
MH-53
FVP-25 Encryption/DTMF Pager Unit (Requires FIF-7A)
FVP-35 Rolling Code Encryption Unit (Requires FIF-7A)
FVP-36 Voice Inversion Encryption Unit (Requires FIF-7A)
F2D-8 2-Tone Decode Unit (Requires FIF-7A)
F5D-14 5-Tone ENC/DEC Unit (Requires FIF-7A)
VME-100 MDC1200
FIF-7 Interface Board for Optional Boards
CN-6 Interface Board for Accessories
FP-1030A External Power Supply (13.8 VDC, 25A)
BCS-5000 Base Station Console
RMK-4000H Remote Kit for Head
RMK-4000B Remote Kit for RF Deck
CNT-5000 Motorcycle Control Head (Requires RMK-5000B)
CNT-6000 Control Head
RF DECK w/MMB-77 RF Deck for Multi Band Operation
MLS-100 External Speaker (12 W Peak Power)
MLS-200 External Speaker (12 W Peak Power)
LF-1 DC Line Filter
CT-72 Radio to Radio Cloning Cable
CT-81 Cable for RMK-4000 20 ft (6 m)
CT-82 Cable for RMK-4000 8 ft (2.5 m)
CT-83 Cable for RMK-4000 2 ft (0.6 m)
CT-93 Cable for RMK-4000 33 ft (10 m)
MMB-77 Mobile Mounting Bracket
MMB-79 Locking Mobile Mounting Bracket
MMB-88 Mobile Bracket for CNT-5000
CE49 Programming Software
CT-29+CT-70 Radio Programming Cable
FIF-10A USB Programming Interface (Requires CT-106)
CT-106 PC Programming Cable for FIF-10A
A7A
B7A
C7A
Heavy Duty Noise Canceling Microphone
Heavy Duty Noise Canceling DTMF Microphone
Heavy Duty Microphone
®
/GE-STAR® ANI Encoder Unit
1-8
DSUB 25-PIN ACCESSORY CONNECTOR
Pin 1: RSSI [Analog Output]
A DC voltage proportional to the strength of the
signal currently being received (Receiver Signal
Strength Indicator) is provided on this pin. This
low impedance output is generated by the receiver
IF sub-system and buffered by an internal op-
amp. Typical voltages are graphed as follows:
Operating Manual Reprint
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
DSUB25 output level (V)
0
1259 398 125 398 12.5 4 1.25 0.4 0.125 0.04
SSG Input Level (uV)
Pin 2, 3, 4, 5 & 6: SELECT, DSUB 03, DSUB 04, DSUB
05 & DSUB 06
[Digital Input Port]
These input port features can be programmed via
the CE49 programmer. The same item can not be
chosen twice.
To select the “Input port” page, (Common ¯
DSUB-25 ¯ Input port).
Pin 2
Pin 4
Pin 6
Pin 3
Pin 5
DSUB 25-Pin Numbering
None
MON This feature is the same as pressing and
holding in the Monitor key.
DIMMERLCD illumination dimmer “on.”
Hook Activates the Hook1 feature.
SCAN Activates the scanner.
G-SCAN Activates the Group scanner.
RPT INH Disables the repeater feature during
Multi Deck operation.
EMG Activates the Emergency feature.
Home Switches to the Home Channel.
CH SW0 Memory channel recall
(Channel Switch Table bit 0)
CH SW1 Memory channel recall
(Channel Switch Table bit 1)
CH SW2 Memory channel recall
(Channel Switch Table bit 2)
CH SW3 Memory channel recall
(Channel Switch Table bit 3)
Example
If you assign “CH SW0” and “CH SW1” to the
Universal Input Port, you can recall Channels 1~3
as shown below.
Channel CH SW0 CH SW1
11 0
20 1
31 1
LOGIC level (+5V / 0V) input (Low active).
High Impedance input.
1-9
Operating Manual Reprint
n
DSUB 25-PIN ACCESSORY CONNECTOR
Similarly, if you assign “CH SW0,” “CH SW1,”
and “CH SW2” to the Universal Input Port, you
can recall Channels 1~7 as shown below:
Channel CH SW0 CH SW1 CH SW2
1100
2010
3110
4001
5101
6011
7111
If you need to recall all memory channels (15 CH)
from the External Controller via the Uni-versal
Input Port, you should assign the “All Channel
Recall” Command (CH SW 0 ~ CH SW 3) to the
Universal Input Port.
In this case:
Channel CH SW0 CH SW1 CH SW2 CH SW3
11000
20100
31100
40010
51010
60110
71110
80001
91001
100101
111101
120011
131011
140111
151111
The Memory Channel is determined via the CE49
Programmer. (Common ¯ DSUB-25pin connec-
tor ¯ Channel switch Table).
5V
Ω
47k
PIN 5 (Pull Up)
DSUB 25-Pin
DSUB 25-Pi
PINS 2, 3, 4, 6
Sample Circuit
Pin 7: E
[GND]
Ground for all logic levels and power supply re-
turn.
Pin 8: A KEY OUT
[Universal Output Port]
Open collector output. Output voltage 0 ~ 5 V,
Max. sink current 30 mA.
The possible programming features (use CE49)
are illustrated below.
A PORT/B PORT/C PORT/D PORT/E PORT/
None
Refer to the “Pins 20, 21, & 22” section for details.
Pin 9: TXD
[Digital Output for Alignment software]
Connect to the RS232C cable (requires FIF-8 and
CT-88)
Pin 10: RXD
[Digital Input for Alignment software]
Connect to the RS232C cable (requires FIF-8 and
CT-88)
Pin 11: EXT PTT
Shorting this port to ground causes the transceiver
to be placed in the Transmit mode, while open-
ing the connection to this port returns the trans-
ceiver to the Receive mode.
1-10
Pin 12: MIC MUTE
MIC mute on: Level High (5V)
MIC mute off: Open
LOGIC level (+5V / 0V) output.
When the PTT/EXT PTT switch is pressed, this
pin switches to “open.”
Operating Manual Reprint
DSUB 25-PIN ACCESSORY CONNECTOR
Pin 13: TXDI [Digital Input for DATA Communications]
P TX Hi-speed Data Input Type (jumper JP2005).
Input level 800 mV/600 Ohms, Max.input 1.2V
P Tx Low-speed Data input Type (Jumper
JP2006). Input level 40 mV/600-Ohms
If the Jumper setting is “Low-speed Data” (JP2006
jumpered), this port is usable in the AUDIO
(300~3000 Hz) range.
If the jumper setting is “HI-speed Data” (JP2005
jumpered), this port is usable for 9600 bps DATA
communications, because the filter and limiter are
not engaged in the Audio line.
Pin 14: DC OUT
[13.4 V/5 V DC Output]
P Switched 13.8V output for supplying power to
an accessory (jumper JP2008).
P Switched and regulated DC 5.0V output for
supplying power to an accessory (jumper
JP2007).
Maximum output current is 200 mA
Pin 15: IGN
[Ignition Sense feature]
The VX-6000 may automatically be switched to
the STAND-BY mode when the vehicle's igni-tion
key is turned on.
Maximum current is 20 mA.
This feature is only enabled on transceivers con-
figured for Dual Deck operation.
Pin 17: RX DO [Digital Output for DATA Communications]
P RX Hi-speed Data Output Type (jumper
JP2003). output level 600 mV/10k Ohms
P RX Low-speed Data Output Type (jumper
JP2004). output level 200 mV/600 Ohms
If the Jumper setting is “Low-speed Data” (JP2004
jumpered), this port is usable in the AUDIO
(300~3000 Hz) range.
If the jumper setting is “HI-speed Data” (JP2003
jumpered), this port is usable for 9600 bps DATA
communications, because the filter and limiter are
not engaged in the Audio line.
Pin 18: E
[GND]
Ground for all logic levels and power supply re-
turn.
Pins 19, 20, 21, & 22: DSUB 19, DSUB 20, DSUB 21
and DSUB 22
[Universal Output Port]
LOGIC level (+5V / 0V) output.
The logic output appears at these pins when the
front panel's PF key is turned on.
The possible programming features (use CE49)
are illustrated below.
If the HA feature is assigned to these ports, a cur-
rent amplifier must be connected between the
Horn circuit and the port.
Pin 16: NC
Ignition 13.8V
[NO connection]
DSUB 25-Pin
None/A PORT/B PORT/C PORT/D PORT/E
PORT/HA PORT
Pin 23: EXT SQL
[Squelch Signal Output]
Open collector output. Max. sink current 10 mA.
A Signal is present (Squelch is open): Level High
No Signal is present (Squelch is closed): Open
When you connect the solder jumper on J2002,
this port changes to PULL UP (5 V) output.
This status can be changed by CE49 programmer.
Pin 24: SP MUTE
[Speaker Mute Output]
Open collector output.
External Speaker mute on: Level High
External Speaker mute off: Open
Pin 25: E [GND]
Chassis ground.
1-11
Operating Manual Reprint
Note:
1-12
Cloning
The VX-6000 includes a convenient “Clone” feature,
which allows the programming data from one trans-
ceiver to be transferred to another VX-6000. Here is
the procedure for Cloning one radio’s data to anoth-
er.
Note: When a cloning isn't made, you correct the fol-
lowing part using "CE49."
When a "Radio to Radio Clone" which is in the
"Miscellaneous" menu is "Disabled," change this
menu to "Enabled."
1. Turn both transceivers off.
2. Remove the plastic cap and its two mounting
screws from the MIC/SP jack on the transceiver.
Do this for both transceivers.
3. Connect the optional CT-72 cloning cable be-
tween the MIC/SP jacks of the two transceivers.
4. On the Destination transceiver, press and hold
the PF Button (just below the POWER Button)
while turning the transceiver on.
5. Now, on the source transceiver, press and hold
the
Button while turning the transceiver
T
on.Data will now be transferred to the Destina-
tion transceiver from the source transceiver.
6. If there is a problem during the cloning process,
sound an error beep from source the transceiver.
Check your cable connections and battery volt-
age, and try again.
7. If cloning is a successful, turn the Destination
transceiver off. Now turn the source transceiver
off.
8. Disconnect the CT-72. Replace the plastic cap
and its two mounting screws.
9. You can then turn the transceivers back on, and
begin normal operation.
Optional Cloning Cable
CT-72
POWERPOWER
Destination source
DealerProgramming of VTP-50 and F5D-14
These procedures are designed to be used by the installing technician after the VTP-50 and F5D-14 has
been installed in the transceiver. To program a VX-6000’s VTP-50 and F5D-14 board, you will need the
CT-71 programming interface cable, the CE26 Programming diskette, and an IBM PC/AT or PS/2-com-
patible type computer.
To enter the Programming mode, use the follow-
ing procedure:
1. Turn the transceiver off.
2. Turn on the transceiver while holding in the
PF Button (just below the
Button).
T
POWER
2-1
Specifications
GENERAL
Number of Channels: 250 channels
Frequency Range: 37.0 - 50 MHz
Channel Spacing: 5 / 10 / 12.5 / 15 / 20 / 25 / 50 kHz
Power Supply Voltage: 13.4 VDC
Current Consumption: Standby: 600 mA
Receive: 2.2 A
Transmit: 22 A
Ambient Temperature Range: –22°F to +140°F (–30°C to +60°C)
Frequency Stability: Better than ±5.0 ppm
RF Input-Output Impedance: 50 Ohms
Audio Output Impedance: 4 Ohms
Dimensions: 7” (w) x 2.4” (H)x 11.9” (D) (178 x 60 x 301 mm)
Weight: 15.4 lbs. (7.0 kg)
RECEIVER (Measurements made per EIA standard TIA/EIA-603)
Circuit Type: Double-conversion Super-heterodyne
Sensitivity(EIA 12 dB SINAD): 0.25 μV
Adjacent Channel Selectivity: 85 dB
Intermodulation: 80 dB
Spurious and Image Rejection: 90 dB
Audio Response: +3 / –8 dB from the 6 dB / oct. re-emphasis curve
Audio Output: 5 W @ 4 Ohms w/<3 % THD
10 W @ 4 Ohms w/<3 % THD (Optional MLS-100)
RANSMITTER (Measurements made per EIA standard TIA/EIA-603)
T
Power Output: 120 / 50 W
Modulation: 16K0F3E
Max Deviation: 5.0 kHz
Conducted Spurious Emissions: 80 dB Below Carrier
Audio Response: +1 / –3 dB from the 6 dB / oct-8
Audio Distortion (@ 1 kHz): < 2 %
Measurements per EIA standards unless noted above.
Specifications subject to change without notice or obligation.
2-2
Screw List
REF. VXSTD P/N Description Qty.
1 U20306007 BINDING HEAD SCREW M3x6B 7
2 U20306002 BINDING HEAD SCREW M3x6NI 6
3 U24308002 TAPTITE SCREW M3x8NI 17
4 U23206001 TAPTITE SCREW M2.6x6 14
5 U20305007 BINDING HEAD SCREW M3x5B 2
6 U32450007 FLAT HEAD SCREW M2.6x5B 2
7 U31306007 OVAL HEAD SCREW M3x6B 2
8 U02308002 SEMS SCREW SM3x8NI 4
9 S5000182 SCREW JFS-4S-B1MW 2
10 U04306002 SEMS SCREW HSM3x6NI 3
11 U20312002 BINDING HEAD SCREW M3x12NI 5
Accessories
Description VXSTD P/N Qty.
DC CABLE 04P 40AX2 T9023140 1
KNOB CAP RA0254100 5
NAME PLATE RA0254700 1
DISPLAY Unit
RA0252800
DIFFUSER SHEET
G6090140 (Lot. 1 ~ 4)
G6090140A (Lot. 5 ~)
LCD
RA0253000
LCD HOLDER
VR Unit
VR3601*
RA0254000
RUBBER KNOB (PWR)
RA0254200
RUBBER PACKING
RA0378900 (Lot. 1 ~ 4)
RA037890A (Lot. 5 ~)
PANEL ASSY
Supplide is VR3601*
RA02543A0 (Lot. 1 ~ 20)
RA02543C0 (Lot. 21 ~)
KNOB
RA0254300 (Lot. 1 ~ 20)
RA02543B0 (Lot. 21 ~)
KNOB
R6054387B
SPECIAL NUT
RA0445900 (Lot. 1 ~ 17)
HEATSINK PLATE
R0134490 (Lot. 1 ~ 24)
R0134490A (Lot. 25 ~)
HOLDER
MIC CONN Unit (Lot. 1 ~ 19)
MIC CONN-2 Unit (Lot. 20 ~)
RA0252700
REFLECTOR SHEET
RA0253900
RUBBER KNOB (CH)
RA0275500
RUBBER KNOB ASSY
KEY Unit
MAIN Unit
M4090133
SPEAKER
RA0252300
LIGHT GUIDE
RA0252900
RUBBER CONNECTOR
R0145680
FITTING (x4 pcs)
A
B
D
E
F
NB Unit
A
B
RA025480A (Lot. 1 ~ 19)
CONTACT ASSY (Both Side)
Exploded View & Miscellaneous Parts
RA0332800 (Lot. 1 ~ 21)
RA1023300 (Lot. 22 ~)
CASE
RA0816900 (Lot. 9 ~ 17)
HEATSINK (3 psc)
RA0924600 (Lot. 18 ~)
PLATE (PA-H) (3 psc)
Under the Transistor
11
C
11
11
11
PA Unit
10
D
10
F
E
11
10
C
D
S6000396
RUBBER GROMMET TM-96-17
RA0445800
CHASSIS
P1090654
CONNECTOR
(W/ *A)
RA0446000
HEATSINK PLATE
P1090984
CONNECTOR
*A
MIC CONN Unit (Lot. 1 ~ 19)
MIC CONN-2 Unit (Lot. 20 ~)
RA020830A
DOUBLE FACE (Both Side)
RA0215400
SHEET
RA0215000
EXT CAP
Non-designated parts are available only as part of a
designated assembly.
T9206977A
WIRE ASSY
C
S6000395
COVER P-25P(23)
RA0262300
HOLDER PLATE
3-1
Block Diagram
3-2
Block Diagram
3-3
Interconnection Diagram
3-4
Circuit Description
Transceiver functions, such as PLL synthesizer
settings and channel programming, are controlled
via the microprocessor unit (MPU). Reception and
transmission are switched by "RX" and "TX" lines,
also controlled from the MPU.
Signal Path Overview
The receiver uses double-conversion superhetero-
dyne circuitry, with a 17.7 MHz 1st IF and 450 kHz
2nd IF. The 1st LO, produced by a PLL synthesizer,
yields the 17.7 MHz 1st IF. The 2nd LO uses a 17.25
MHz (17.7 MHz - 450 kHz) signal generated by a
crystal oscillator. The 2nd mixer and other circuits
use a custom IC to convert and amplify the 2nd IF,
and detect FM to obtain demodulated signals. Dur-
ing transmit, the PLL synthesizer oscillates at the
desired frequency directly, for amplification to ob-
tain RF power output. During transmit, voice mod-
ulation and CTCSS (or DCS) modulation are applied
to this synthesizer. Transceiver functions, such as TX/
RX control, PLL synthesizer settings, and channel
programming, are controlled using the MPU.
Receiver
Incoming RF signals from the antenna connector
are delivered to the PA Unit, and pass through a low-
pass filter (LPF) network consisting of coils L6011,
L6010, and L6009, capacitors C6047, C6045, C6044,
C6075, C6043, C6042 and C6074, and antenna switch-
ing relay RL6001 for delivery to the receiver front
end in the MAIN Unit.
Signals within the frequency range of the trans-
ceiver are then passed through a varactor-tuned
band-pass filter consisting of T1001/T1002/T1003 and
T1004 before RF amplification by Q1006
(GN010100R).
The amplified RF is then band-pass filtered again
by varactor-tuned resonators T1001, T1002, T1003
and T1004 to ensure pure in-band input to the 1st
mixer 1040 (SPM5001).
Buffered output from the VCO Unit is amplified
by Q1021 (2SC5107) and low-pass filtered by L1030,
L1020 and C1161, C1152, C1143 to provide a pure
1st local signal between 54.7 and 67.7 MHz for input
to the 1st mixer.
The 17.7 MHz 1st mixer product then passes
through dual monolithic crystal filters XF1001 and
XF1002 (12 kHz BW), and is amplified by Q1035
(2SC4215) and delivered to the input of the FM IF
subsystem IC Q1034 (TA31136FN). This IC contains
the 2nd mixer, 2nd local oscillator, limiter amplifier,
FM detector, noise amplifier, and squelch gate.
The 2nd LO in the IF-IC is produced from crystal
X1001 (17.25 MHz), and the 1st IF is converted to
450 kHz by the 2nd mixer and stripped of unwanted
components by ceramic filter CF1001. After passing
through a limiter amplifier, the signal is demodulat-
ed by the FM detector.
Demodulated receive audio from the IF-IC is
amplified by Q2019 (CXA1846N). After volume ad-
justment by the AF power amplifier Q2018
(TDA7240AV), the audio signal is passed to the
speaker jack or the internal 4-Ohm loudspeaker.
PLL Synthesizer
The 1st LO, a PLL synthesizer, maintains stabili-
ty using a 17.25 MHz reference signal from crystal
X1001. PLL synthesizer IC Q1029 (SA7025DK) con-
sists of a prescaler, reference counter, swallow
counter, programmable counter, a serial data input
port to set these counters based on the external data,
a phase comparator, and charge pump. The PLL-IC
divides the 17.25 MHz reference signal by 1725 us-
ing the reference counter (10.0 kHz comparison fre-
quency). The phase detector comparison frequency
is designed to be two times the channel spacing (5
kHz). The VCO output is divided by the prescaler,
swallow counter and programmable counter. These
two signals are compared by the phase comparator
and sent to the charge pump. A voltage proportion-
al to their phase difference is delivered to the low-
pass filter circuit, then fed back to the VCO as a volt-
age with phase error, controlling and stabilizing the
oscillating frequency. This synthesizer also operates
as a modulator during transmit.
The RX-VCO is composed of Q1015 (2SK508) and
D1016/D1017 (HVU306AX2), and oscillates be-tween
54.7 MHz and 67.7 MHz according to the pro-
grammed receiving frequency. And the TX-VCO is
comprised of Q1016 (2SC4226) and D1012, D1013,
D1014, D1015 (HVU300AX4), and oscillates between
37.0 MHz and 50.0 MHz according to the pro-
grammed transmit frequency. The VCO output pass-
es through buffer amplifier Q1021 (2SC5107), and a
portion is fed to the buffer amplifier Q1023
(2SC4215) of the PLL IC, and at the same time am-
plified by Q1027 (2SC5415) to obtain stable output.
The VCO DC supply is regulated by Q1007
(2SC4154E). Synthesizer output is fed to the 1st mix-
er by diode switch D1022 (1SS321) during receive,
and for transmit. The reference oscillator feeds the
PLL synthesizer, and is composed of crystal X1001
(17.25 MHz), the temperature compensation circuit
which includes D1028 (MC2850) ,D1026(HVU306A)
and thermostats TH1001 and TH1002, and transmit
(DCS) modulation circuit D1025, D1029(HVU306A
X2).
4-1
Circuit Description
Transmitter
Voice audio from the microphone is delivered via
the Mic (Jack) Unit to the MAIN Unit, after passing
through amplifier Q3039/Q2108 (NJM2902V), pre-
emphasis, limiter (IDC instantaneous deviation con-
trol), and LPF Q2001 (NJM2902V); the signal is ad-
justed for optimum deviation level and delivered to
the next stage.
Voice inputs from the microphone and CTCSS are
frequency-modulated to the VCO of the synthesiz-
er, while DCS audio is modulated by the reference
frequency oscillator of the synthesizer.
Synthesizer output, after passing through diode
switch D1022 (1SS321), to obtain the required RF
drive prior to delivery to the PA Unit. There the RF
signal is amplified by parallel junction transistors
Q6006/Q6007 (SD1405X2) and passes through an-
tenna switching relay RL6001 and a low-pass filter
circuit, and ultimately to the antenna connector.
RF output power from the final amplifier is sam-
pled by a CM coupler and is rectified by D6006/D6007
(MA729X2). The resulting DC is fed through Auto-
matic Power Controller Q1038 (NJM2902V), Q1001
(2SC4154E), Q1004 (2SB1132Q) to control the gain
of the transmitter RF amplifier and thus regulate the
power output.
Generation of spurious products by the transmit-
ter is minimized by the fundamental carrier frequen-
cy being equal to the final transmitting frequency,
modulated directly in the transmit VCO. Additional
harmonic suppression is provided by a low-pass fil-
ter consisting of L6009/L6010/L6011 and C6042/
C6043/C6044/C6047/C6074/C6075 and C6045, result-
ing in more than 65 dB of harmonic suppression pri-
or to delivery of the RF energy to the antenna.
DCS Demodulator
DCS signals are demodulated on the MAIN-
UNIT, and are applied to low-pass filter Q2110
(NJM2902V), as well as the limiter comparator Q2110
(NJM2902V).
CTCSS Encoder/Decoder
The CTCSS code is generated and encoded by
MPU IC Q2019 (MB90F583B). Demodulation and
detection of the CTCSS tones are carried out by IC
Q2013 (MX165C).
MPU
Operation is controlled by 16-bit MPU IC Q2026
(MB90F583B). The system clock uses a 16.000 MHz
crystal for a time base. IC Q2036 (RN5VL35AA) re-
sets the MPU when the power is on, and monitors
the voltage of the regulated 5V power supply line.
EEPROM
The EEPROM retains Tx and Rx data for all mem-
ory channels, as well as CTCSS data, DCS data, pres-
caler dividing, and REF oscillator data (internal/ex-
ternal).
4-2
Alignment
The VX-6000 has been carefully aligned at the fac-
tory for the specified performance across the frequen-
cy range specified for each version.
Realignment should therefore not be necessary
except in the event of a component failure, or when
altering the transceiver version. If a sudden prob-
lem occurs during normal operation, it is likely due
to component failure; realignment should not be
done until after the faulty component has been re-
placed. All component replacement and service
should be performed only by an authorized
VERTEX STANDARD representative, or the warran-
ty policy may be voided. Therefore, if a fault is sus-
pected, contact the dealer from whom the transceiv-
er was purchased for instructions regarding repair.
Authorized VERTEX STANDARD service tech-
nicians realign all circuits and make complete per-
formance checks to ensure compliance with factory
specifications after replacing any faulty components.
Those who do undertake any of the following align-
ments are cautioned to proceed at their own risk.
Problems caused by unauthorized attempts at re-
alignment 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, without notify-
ing 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
realignment determined to be absolutely necessary.
Required Test Equipment
The following test equipment (and thorough fa-
miliarity with its correct use) is necessary for com-
plete realignment. Correction of problems caused by
misalignment resulting from use of improper test
equipment is not covered under the warranty poli-
cy.
While most steps do not require all of the equip-
ment listed, the interactions of some adjustments
may require that more complex adjustments be per-
formed 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 follow all of the steps in a sec-
tion in the order presented.
U RF signal generator: calibrated output level at 1000
MHz
U Deviation Meter (linear detector)
U AF Millivoltmeter
U SINAD Meter
U Inline Wattmeter with 5% accuracy at 1000 MHz
U Regulated DC Power Supply: adjustable from 10
to 17 VDC, 35A
U 50-ohm non-reactive Dummy Load: 200 W at 1000
MHz
U Frequency Counter: <0.1 ppm accuracy at 1000
MHz
U AF Signal Generator
U DC Voltmeter: high impedance
U RF Sampling Coupler (attenuation pad)
U AF Dummy Load: 4 ohms, 20W
U Oscilloscope
U Spectrum Analyzer
U IBM PC-compatible computer w/VERTEX
STADARD CT-71 programming cable and CE49
channel programming editor.
Alignment Preparation & Precautions
A dummy load and inline wattmeter must be con-
nected to the main antenna jack in all procedures
that call for transmission, except where specified oth-
erwise. Correct alignment is not possible with an
antenna. After completing one step, read the follow-
ing step to determine whether the same test equip-
ment will be required. If not, remove the test equip-
ment (except dummy load and wattmeter, if connect-
ed) before proceeding.
Correct alignment requires that the ambient tem-
perature be the same as that of the transceiver and
test equipment, and that this temperature be held
constant between 68° and 86°F (20° ~ 30°C). When
the transceiver is brought into the shop from hot or
cold air it should be allowed some time for thermal
equalization with the environment before alignment.
If possible, alignments should be made with oscilla-
tor shields and circuit boards firmly affixed in place.
Also, the test equipment must be thoroughly warmed
up before beginning.
5-1
Alignment
Before beginning, connect the transceiver and PC
using the CT-71 programming cable, and download
the EEPROM data from the transceiver to the com-
puter.
Store this data in a disk file so that it can be saved
and retrieved later. Using the table below, program
the channel, CTCSS, and DCS alignment settings for
your transceiver version. Upload this file to the trans-
ceiver.
Note:Signal levels in dB referred to in this proce-
dure are based on 0 dBμ = 0.5 μV (closed cir-
cuit).
Caution:Do not connect the audio output line to
ground, and be certain that the speaker has
adequate capability to handle the audio
output from the radio.
Because of the bridge audio amplifier cir-
cuit used in the radio, it is necessary to con-
struct and use a simple audio load test
adapter as shown in the schematic diagram
below, when conducting receiver alignment
steps.
3.5 PLUG
2-ohm
10W
2-ohm
10W
(4-ohm Dummy Load)
470uF
Attenuate d
Tes t Ou tp ut (1 / 2)
GND
Alignment Channel Frequencies
Channel
CH1 37.0 MHz None None
CH2 43.5 MHz None None
CH3 50.0 MHz None None
CH4 43.5 MHz 151.4 Hz None
CH5 43.5 MHz None 023
Frequency CTCSS DCS
(simplex) Encode Encode
PLL & Transmitter
Set up the test equipment as shown for transmit-
ter alignment.
Maintain the supply voltage at 13.4 V DC for all
steps.
RF Signal
Generator
Inline Wattmeter
Deviation Meter
Frequency
Counter
RF Sampling
Coupler
CT-71 connection
Cable
PC
Transceiver
Power Supply
13.4V DC
COM port
PLL VCV
U Connect the positive lead of the DC voltmeter to
test point TP1010 (VCV) on the Main Unit, as in-
dicated in the figure, and connect the negative lead
to chassis ground.
U Set the transceiver to the low band edge frequency
channel (CH1), then adjust T1005 on the Main
Unit for 7.0 ± 0.1 V on the voltmeter.
U Key the transmitter, and adjust T1006 on the Main
Unit for 7.0 ± 0.1 V on the voltmeter.
U Next select to the low edge frequency channel
(CH1) and confirm the VCV is 1.6 ± 0.3 V on the
voltmeter.
U Key the transmitter, and confirm the VCV is 1.7 ±
0.3 V on the voltmeter.
PLL Reference Frequency
With the wattmeter, dummy load and frequency
counter connected to the antenna jack, select the band
center frequency channel (CH2) and select the “low”
power output level.
Key the transmitter, and adjust TC1001 on the
Main Unit, if necessary, so the counter frequency is
within 100 Hz of the channel center frequency for
the transceiver version.
5-2
Alignment
Transmitter Output Power
The following transmitter parameters can be ad-
justed from the computer by utilizing the Alignment
Software. Refer to the onboard help of the Alignment
Software Manual for details.
U Select the band center frequency channel (CH2),
and select the “high” power output level.
Key the transmitter and adjust “TX PWR Hi“ for a
power output of 120 Watts (± 3.0 W) as indicated
on the wattmeter.
U Stay on the band center frequency channel (CH2),
and select the “low” power output level.
Key the transmitter and adjust “TX PWR L3“ for a
power level of 50 Watts (± 2.0 W) as indicated on
the wattmeter.
Transmitter Deviation
The following modulation parameters can be ad-
justed from the computer by utilizing the Alignment
Software. Refer to the onboard help of the Alignment
Software Manual for details.
Microphone Audio Modulation Level
U Select the band center frequency channel (CH2),
and select the “low” power output level.
U Adjust the AF generator for 50mV (–30dBm) out-
put at 1 kHz, as applied to the microphone jack.
U Key the transmitter and adjust “MAX Dev (wide)“
for maxi-mum deviation of ±4.2 kHz ± 0.2 kHz as
indicated on the deviation meter.
TP1010T1005T1006 TC1001
5-3
Alignment
CTCSS Modulation Level
U Select the “low” power output level.
U Select the band center frequency channel (CH4),
with 151.4 Hz CTCSS encode, and reduce the AF
generator injection to zero.
U Key the transmitter and adjust “CTCSS Dev (wide)“
for CTCSS deviation of ±0.75 kHz (± 0.1 kHz) as
indicated on the deviation meter.
DCS Modulation Level
U Select the “low” power output level.
U Select the band center frequency channel (CH5),
with 023 DCS code, and reduce the AF generator
injection to zero.
U Key the transmitter and adjust “DCS Dev (wide)“
for DCS deviation of ±0.75 kHz (± 0.1 kHz) as in-
dicated on the deviation meter.
Receiver
The sensitivity parameters can be adjusted from
the computer by utilizing the Alignment Software.
Refer to the onboard help of the Alignment Software
Manual for details.
U Set up the test equipment as shown for receiver
alignment, and install the audio test adapter.
50-Ohm
Dummy Load
Inline
Wattmeter
Deviation
Meter
Frequency
Counter
RF Sampling
Coupler
CT-71
Connection
Cable
AC Volt
Meter
RF Signal
Generator
Power Supply
13.8V DC
13.4
Transceiver
AF Generator
SINAD
Meter
AF Test
Adapte r
T1002T1003T1004 T1001
5-4
U With the transceiver set to the band center fre-
quency channel (CH2), and with the RF signal
generator tuned to the same frequency, set the
generator for ±3.0 kHz deviation with 1 kHz tone
modulation, and set the output level for –6.0 dBμ
at the antenna jack.
U Adjust T1001, T1001, T1001 and T1004 the re-
ceiver front-end tuning for optimum SINAD, re-
ducing signal generator output level as necessary
for proper meter deflection.
U After the previous step, the final signal generator
level should be less than –6 dBμ for 12dB SINAD.
U With the transceiver set to the band high fre-
quency channel (CH3), and with the RF signal
generator tuned to the same frequency, set the
generator for ±3.0 kHz deviation with 1 kHz tone
modulation, and set the output level for –6.0 dBμ
at the antenna jack.
U After the previous step, and confirm the final sig-
nal generator level should be less than –6 dBμ for
12dB SINAD.
U With the transceiver set to the band low frequency
channel (CH1), and with the RF signal generator
tuned to the same frequency, set the generator for
±3.0 kHz deviation with 1 kHz tone modulation,
and set the output level for –5.0 dBμ at the an-
tenna jack.
U After the previous step, and confirm the final sig-
nal generator level should be less than –5 dBμ for
12dB SINAD.
Squelch Threshold
The squelch parameters can also be adjusted from
the computer by utilizing the Alignment Software.
Refer to the onboard help of the Alignment Software
Manual for details.
Tight SQL RSSI LEVEL
U Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 12.0 dBμ at the antenna jack.
Threshold NSQ LEVEL
U Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for –6.0 dBμ at the antenna jack.
Tight SQL NSQ LEVEL
U Select the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz de-
viation with 1 kHz tone modulation, and set the
output level for 6.0 dBμ at the antenna jack.
5-5
MAIN Unit (Lot. 1 ~ 17)
Circuit Diagram
2.3V
2.75V
(2.45V)
0.4V
0V (8.8V)
5 ~ 7V
7.7V (7.9V)
-2 dBm
2.5V
(2.5V)
+8 dBm (+12 dBm)
(0 dBm)
3.4V
(1.6V)
0V (5.6V)
5V (5V)
(5.6V)
(2.06V)
(1.0V)
(0.64V)
-119 dBm
2.0V (2.0V)
8.9V
(8.9V)
0V (3.5V)
8V (8V)
0V
(8.8V)
3.5V (4.95V)
-116 dBm
4.0V (3.7V)
0V (0.9V)
0V (4.7V)
0V (5V)
NB on:(5V)
NB off:(0V)
4.5V
(4.5V)
(3.9V)
(1.7V)
2V (2V)
LOCK:4.9V
0V (8.7V)
0V (4.3V)
(0V)
(2.2V)
(0.03V)
0V (5V)
(2V)
XX : TX 43.5 MHz, MIC Input Level 1 kHz 3.0mVrms (STD Dev), High Power
(XX) : RX 43.5 MHz, RF Input Level 40dbμ emf (MOD=1.0 kHz, Dev=3.0 kHz), EXT SP OUT 10% Distn 14.0W
[XX] : Noise Blanker ON
6A-1
MAIN Unit (Lot. 1 ~ 17)
Circuit Diagram
3.9V
(4.1V)
(1.2V)
(3.8V)
3.9V
3.9V (3.9V)
(3.8V)
0V
(1.2V)
3.9V
(3.9V)
0V (1.1V)
(1.0V)
1.1V
(1.1V)
(1.0V)
2.2V (2.2V)
0.3V
(0.3V)
11.6V
(12.2V)
6.4V (6.7V)
5.0V
(5.0V)
3.9V
(3.9V)
5.0V
(5.0V)
5.0V
(5.0V)
Power on : 0V
Power off : 13.6V
4.9V
(4.9V)
0.55V (5V)
3.9V (3.9V)
3.9V
(3.9V)
3.9V
(3.9V)
4.9V
(4.9V)
(6.5V)
(6.4V)
4.0V
(4.0V)
2.5V
(2.5V)
4.6V
(4.6V)
4.5V
(4.5V)
4.4V
(4.4V)
2.0V
(2.0V)
2.0V
(2.0V)
2.0V
(2.0V)
6A-2
(6.5V)
(6.4V)
XX : TX 43.5 MHz, MIC Input Level 1 kHz 3.0mVrms (STD Dev), High Power
(XX) : RX 43.5 MHz, RF Input Level 40dbμ emf (MOD=1.0 kHz, Dev=3.0 kHz), EXT SP OUT 10% Distn 14.0W
ACE
FBD G
MAIN Unit (Lot. 1 ~ 17)
Parts Layout (Side A)
TC4W53FU
(Q2004)
TDA7240AV
(Q2018)
1
MB90F583B
(Q2026)
BU4066BF
(Q2007)
HN58X2432TI
(Q2038)
CXA1846N
(Q2019)
2
TC4S66F (C9)
(Q2037, 2040)
NJM78L05UA (8C)
(Q1018)
SPM5001
(Q1040)
IMH6 (H6)
(Q1008, 1020)
3
2SC4154E (LE)
(Q1012,1014, 2024)
2SC5107-O (MFO)
(Q1021)
2SC4226 (R24)
(Q1016)
4
2SK508 (K52)
(Q1015)
TA75S01F (SA)
5
(Q2041)
2SB1132Q (BA)
(Q1004)
2SK2035 (KP)
(Q1019)
RT1N241M (N2)
(Q1022, 2005, 2010,
2013, 2039
MM1216ENRE (1A)
(Q1003)
GN010100RL (5A)
(Q1006)
IMD3 (D3)
(Q2021)
DTC323TK (H02)
(Q2016, 2020)
HZM5.6NB2 (562)
(D1024)
MC2850 (A7)
(D1001, 1027, 1028,
2006, 2007)
6A-3
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