4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
International Division
8350 N.W. 52nd Terrace, Suite 201, Miami, FL 33166, 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 CloseWinchester, 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
Introduction
This manual provides technical information necessary for servicing the VX-5500V VHF FM Transceiver.
Servicing this equipment requires expertise in handling surface-mount chip components. Attempts by non-qualifiedpersons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal insome countries.
Two PCB layout diagrams are provided for each double-sided circuit board in the Transceiver. Each side of is referredto by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most cases one side hasonly chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolyt-ic capacitors, ICs, etc.), or leaded components only.
While we believe the technical information in this manual to be correct, VERTEX STANDARD assumes no liabilityfor damage that may occur as a result of typographical or other errors that may be present. Your cooperation in pointingout any inconsistencies in the technical information would be appreciated.
Pressing these buttons changes the current group(and displayed group number or name). Hold-ing this button for more than 1/2 second causesthe function to repeat.
SQC Indicator
Å
This lamp glows orange when incorrect positionat the setting of CE49.
Programmable Function Button (PF button)
Æ
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
Ç
This knob sets the volume of the receiver.
EMERGENCY Microphone
È
The emergency microphone is located behind thissmall slit. When the emergency feature is acti-vated, this Microphone is enabled.
CHANNEL Selector Knob
É
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
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ƒ‚•
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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
À
The 50-ohm coaxial feedline to the antenna mustbe connected here, using a type-M (PL-259) plug.
External Speaker Jack
Á
An external loudspeaker may be connected to this2-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 theVX-5500.
13.8-V DC Power Connector
Â
The supplied DC power cable must be connectedto this 4-pin connector. Use only the suppliedfused cable, extended if necessary, for power con-nection.
DSUB 25-Pin Accessory Connector
Ã
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 usewith accessories such as data transmission/recep-tion modems, ets.
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Operating Manual Reprint
BASIC OPERATIONOFTHE 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
Channel Group, press the UP (p) or DOWN (q)
button 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
seconds to quiet the noise and resume normal
(quiet) monitoring.
Transmitting
To transmit, wait until the “BUSY” indicator isoff (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 thePTTswitch, speak across the face of the microphonein a clear, normal voice level, and then releasethe PTT switch to receive.
Selecting Groups and Channels
mPress the UP (p) or DOWN (q) button (re-
peatedly, if necessary) to select a differentgroup of channels.
mTurn the CHANNEL selector knob to select a
different channel within the current group.
Automatic Time-Out Timer
If the selected channel has been programmed forautomatic time-out, you must limit the length ofeach transmission. While transmitting, a beep willsound five seconds before time-out. Another beepwill sound just before the deadline; the “TX” in-dicator will disappear and transmission will ceasesoon thereafter. To resume transmitting, you mustrelease the PTT and wait for the “penalty timer”to expire (if you press the PTT before this timerexpires, the timer restarts, and you will have towait another “penalty” period.)
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Operating Manual Reprint
ADVANCED OPERATION
Programmable Function Button (PF button)
The VX-5500 includes the seven ProgrammableFunction Buttons (PF button). The PF button
functions can be customized, via programmingby your VERTEX STANDARD dealer, to meetyour communications/network requirements.Some features may require the purchase and in-stallation of optional internal accessories. Thepossible PF button programming features are il-
lustrated at the below, and their functions areexplained on next page.For further details, contact your VERTEX STAN-DARD dealer. For future reference, check the boxnext to each function that has been assigned tothe PF button on your particular radio, and keepit handy.
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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 chan-
nel for the presence of a signal, and will stop on a
channel if a signal is present.
To activate scanning:
mPress the assigned PF button of the “Scan” mo-
mentarily to activate scanning.
mThe scanner will search the channels, looking
for active ones; it will pause each time it findsa channel on which someone is speaking.
To stop scanning
mPress the assigned PF button of the “Scan”.
mOperation 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 duringscanning pause:
Current channel (“Talk Back”)
r
“Last Busy” channel
r
“Priority” channel
r
“Home” channel
r
Scan Start” channel
r
Dual Watch
The Dual Watch feature is similar to the Scan fea-
ture, except that only two channels are monitored:
rThe current operating channel; andrThe “Priority” channel.
To activate Dual Watch:
mPress the assigned PF button of the “Dual
Watch”.
mThe scanner will search the two channels; it
will pause each time it finds a channel onwhich someone is speaking.
To stop Dual Watch:
mPress the assigned PF button of the “Dual
Watch”.
mOperation 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 youand another ARTS-equipped station are withincommunication range.During ARTS operation, your radio automaticallytransmits for about 1 second every 25 (or 55) sec-onds (the interval is programmed by Dealer) inan 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 beenreceived, a ringing beeper will sound. If you sub-sequently move back into range, as soon as theother station transmits, your beeper will sound.
The PF Button Function
The PF (Programmable Function) button can beprogrammed by the dealer to provide two of theother functions described below.To activate the primary Accessory function, pressthe PF button momentarily. To access the second-ary Accessory function (which may include theAlarm), press and hold the PF button for 1.5 sec-onds or longer.
Call/Reset
When this feature is programmed and a selec-tive call has been received, momentarily press theassigned PF button of the “Call/Reset” to resetthe flashing indicator and mute the receiver, oth-erwise 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 onsemi-duplex channels: the transmit frequencybecomes 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 displayedon the LCD.
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 youswitch between numerical and alphanumericaldisplay.
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Operating Manual Reprint
ADVANCED OPERATION
DIM
Press the assigned PF button of the “DIM” to ad-just the brightness of the display and keybackright.
EMG (Emergency)
Press the assigned PF button of the “EMG” toinitiate an emergency call (requires ANI board).When an emergency call is made, not tone isemitted and the display does not change. To endthe emergency call, turn the transceiver powerOFF.
HA (Horn Alert)
Press the assigned PF button of the “HA” to turnthe Horn Alert function ON or OFF. If you re-ceive a call from the base station with 2Tone orDTMF signaling, horn alert will activate.When you turn Horn Alert ON, a tone will soundand “ ” appears on the display..
Home (Home Channel)
Press the assigned PF button of the “Home” toselect the pre-programmed Home Channel. Pressit again to return to the previous channel. If usedwhile scanning, pressing this key a second timewill change to the revert channel.
IC (Intercom)
This feature requires dual head configuration.Press the assigned PF button of the “IC” to turnthe intercom feature ON or OFF. While ON, youcan press the PTT switch to communicate to an-other control head operator without transmittingover the air. When you press this key, a tonesounds and “” appears on the display. The in-tercom can be used even while scanning and re-ceiving a call.
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 withinthe 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 usethe transceiver as a PA amplifier. When you en-able this function, a tone sounds and “” ap-pears on the display. The public address can beused even while scanning and receiving a call.
MONI (Monitor)
Press the assigned PF button of the “MONI” mo-mentarily to cancel CTCSS and DCS signalingsquelch; the “MON” icon appears on the display.Press and hold this key for 1/2 seconds to hearbackground noise (unmute the audio); the MONicon 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 “SelectableTone”, then rotate the CHANNEL selector knob
to select a 2-Tone.
SP
Press the assigned PFbutton of the “SP” to switch“Front panel”, “Front panel & Body” and “Body”speaker. When “Body” is selected, a tone soundsand the “” icon appears on the display. Youcan use this function while scanning and receiv-ing a call. However, all audio will be emitted fromthe PA speaker.
SQL (Squelch Level)
You can manually adjust the squelch level usingthis function:
1. Press the assigned PF button of the “SQL”. A
tone sounds and SQL appears on the displaywith 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.
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ADVANCED OPERATION
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-noiseradio 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.
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Operating Manual Reprint
OPTIONAL ACCESSORIES
MH-25MH-53MH-53MH-53CE49Programming SoftwareCT-70Radio Programming Cable (Requires VPL-1)CT-71Radio to PC Programming CableCT-72Radio to Radio Programming CableCT-93Cable for RMK-4000 (33 ft,10 m)CT-81Cable for RMK-4000 (20 ft, 6 m)CT-82Cable for RMK-4000 (8 ft, 2.5 m)CT-83Cable for RMK-4000 (2 ft, 0.6 m)CNT-6000Control HeadRF DECKRF Deck w/MMB-75 (for Dual Band Installations)RMK-4000SHRemote Kit (for Single Transceiver)RMK-4000DHRemote Kit (for Dual-Head Installations)RMK-4000DBRemote Kit (for Dual Band Installations)RMK-4000DBHRemote Kit (for Dual Band plus Dual Head Installations)F2D-82-Tone Decode Unit (Requires FIF-7)F5D-145-Tone ENC-DEC Unit (Requires FIF-7)VTP-50VX-Trunk Unit (Requires FIF-7)FVP-25Band inversion scrambler/DTMF paging Unit (Requires FIF-7)FVP-35Encryption Unit (Rolling code voice scrambler; Requires FIF-7)MDC1200Digital ANI encoder Unit (Requires FIF-7)FP-1023External 23A Power SupplyMLS-100Mobile Loud speaker (12 W Peak Power)MMB-75Mobile Mounting BracketMMB-76Locking Mobile Mounting BracketFIF-7Inter face Board (for F2D-8, F5D-14, VTP-50, FVP-25)CN-6Inter face Board (for Accessories)LF-1Line Filter
A DC voltage proportional to the strength of thesignal currently being received (Receiver SignalStrength Indicator) is provided on this pin. Thislow impedance output is generated by the re-ceiver IF sub-system and buffered by an internalop-amp. Typical voltages are graphed as follows:
0
125939812539812.541.250.4
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 viathe CE49 programmer. The same item can not bechosen twice.To select the “Input port” page, (Common àDSUB-25 à Input port).
Pin 2
Pin 4
Pin 6
Pin 3
Pin 5
0.04
Operating Manual Reprint
DSUB 25-Pin Numbering
NoneMONThis feature is the same as pressing
and holding in the Monitor key.
DIMMERLCD illumination dimmer “on.”HookActivates the Hook1 feature.SCANActivates the scanner.G-SCANActivates the Group scanner.RPT INHDisables the repeater feature during
Multi Deck operation.
EMGActivates the Emergency feature.HomeSwitches to the Home Channel.CH SW0Memory channel recall
(Channel Switch Table bit 0)
CH SW1Memory channel recall
(Channel Switch Table bit 1)
CH SW2Memory channel recall
(Channel Switch Table bit 2)
CH SW3Memory channel recall
(Channel Switch Table bit 3)
Example
If you assign “CH SW0” and “CH SW1” to theUniversal Input Port, you can recall Channels 1~3as shown below.
Similarly, if you assign “CH SW0,” “CH SW1,”and “CH SW2” to the Universal Input Port, youcan recall Channels 1~7 as shown below:
ChannelCH SW0CH SW1CH SW2
1100201031104001510160117111
If you need to recall all memory channels (15 CH)from the External Controller via the Uni-versalInput Port, you should assign the “All ChannelRecall” Command (CH SW 0 ~ CH SW 3) to theUniversal Input Port.In this case:
ChannelCH SW0CH SW1CH SW2CH SW3
1100020100311004001051010601107111080001
91001100101111101120011131011140111151111
The Memory Channel is determined via the CE49Programmer. (Common à DSUB-25pin connec-tor à Channel switch Table).
47k
W
DSUB 25-Pin
PINS 2, 3, 4, 6
PIN 5 (Pull Up)
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 andCT-88)
Pin 10: RXD [Digital Input for Alignment software]
Connect to the RS232C cable (requires FIF-8 andCT-88)
Pin 11: EXT PTT
Shorting this port to ground causes the trans-ceiver to be placed in the Transmit mode, whileopening the connection to this port returns thetransceiver to the Receive mode.
1-10
Pin 12: MIC MUTE
MIC mute on: Level High (5V)MIC mute off: OpenLOGIC level (+5V / 0V) output.When the PTT/EXT PTT switch is pressed, thispin switches to “open.”
Page 12
Operating Manual Reprint
DSUB 25-Pin
DSUB 25-PIN ACCESSORY CONNECTOR
Pin 13: TXDI [Digital Input for DATA Communications]
mTX Hi-speed Data Input Type (jumper JP2005).
Input level 800 mV/600 Ohms, Max.input 1.2V
mTx Low-speed Data input Type (Jumper
JP2006). Input level 40 mV/600-Ohms
If the Jumper setting is “Low-speed Data” (JP2006jumpered), this port is usable in the AUDIO(300~3000 Hz) range.If the jumper setting is “HI-speed Data” (JP2005jumpered), this port is usable for 9600 bps DATAcommunications, because the filter and limiter arenot engaged in the Audio line.
Pin 14: DC OUT [13.4 V/5 V DC Output]
mSwitched 13.8V output for supplying power
to an accessory (jumper JP2008).
mSwitched and regulated DC 5.0V output for
supplying power to an accessory (jumperJP2007).Maximum output current is 200 mA
Pin 15: IGN [Ignition Sense feature]
The VX-5500 may automatically be switched tothe STAND-BY mode when the vehicle's igni-tionkey 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 Communica-
tions]
mRX Hi-speed Data Output Type (jumper
JP2003). output level 600 mV/10k Ohms
mRX Low-speed Data Output Type (jumper
JP2004). output level 200 mV/600 Ohms
If the Jumper setting is “Low-speed Data” (JP2004jumpered), this port is usable in the AUDIO(300~3000 Hz) range.If the jumper setting is “HI-speed Data” (JP2003jumpered), this port is usable for 9600 bps DATAcommunications, because the filter and limiter arenot 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 thefront 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 theHorn circuit and the port.
Ignition 13.8V
Pin 16: NC [NO connection]
None/A PORT/B PORT/C PORT/D PORT/EPORT/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 HighNo Signal is present (Squelch is closed): OpenWhen 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 HighExternal Speaker mute off: Open
Pin 25: E [GND]
Chassis ground.
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Operating Manual Reprint
Note:
1-12
Page 14
Cloning
The VX-5500 includes a convenient “Clone” feature,which allows the programming data from one trans-ceiver to be transferred to another VX-5500. Here isthe procedure for Cloning one radio’s data to an-other.
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 thismenu to "Enabled."
1.Turn both transceivers off.
2.Remove the plastic cap and its two mounting
screws from the Microphone jack on the trans-ceiver. Do this for both transceivers.
3.Connect the optional CT-72 cloning cable be-tween the Microphone jacks of the two trans-ceivers.
4.On the Destination transceiver, press and holdthe PF Button (just below the POWER Button)while turning the transceiver on.
5.Now, on the source transceiver, press and hold
the q Button while turning the transceiveron.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 Destinationtransceiver off. Now turn the source transceiveroff.
8.Disconnect the CT-72. Replace the plastic capand its two mounting screws.
9.You can then turn the transceivers back on, andbegin normal operation.
Optional Cloning Cable
CT-72
POWERPOWER
Destinationsource
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 hasbeen installed in the transceiver. To program a VX-5500's VTP-50 and F5D-14board, you will need theCT-71 programming interface cable, the CE-26 Programming diskette, and an IBM PC/AT or PS/2-compatible type computer.
To enter the Programming mode, use the follow-ing procedure:
Ambient Temperature Range:–22°F to +140°F (–30°C to +60°C)
Frequency Stability:Better than ±2.5 ppm
RF Input-Output Impedance:50 Ohms
Audio Output Impedance:4 Ohms
Dimensions:7" (w) x 2.4" (H)x 7.7" (D) (178 x 60 x 195 mm)
Weight (Approx.):4.9 lbs. (2.2 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:85/75 dB
Intermodulation:80/75 dB
Spurious and Image Rejection:90 dB
Audio Output:12 W @ 4 Ohms w/5 % THD
TRANSMITTER (Measurements made per EIA standard TIA/EIA-603)
Power Output:50 (Low:25 W)
Modulation:16K0F3E, 11K0F3E
Max Deviation:5.0/2.5 kHz
Conducted Spurious Emissions:80 dB Below Carrier
FM Hum & Noise:50/45 dB
Audio Distortion (@ 1 kHz):< 5 %
Measurements per EIA standards unless noted above.
Specifications subject to change without notice or obligation.
2-2
Page 16
Screw List
REF.VXSTD P/NDescriptionQty.
1U20306007BINDING HEAD SCREW M3x6B4
2U20306002BINDING HEAD SCREW M3x6NI6
3U24308002TAPTITE SCREW M3x8NI9
4U23206001TAPTITE SCREW M2.6x614
5U20308002BINDING HEAD SCREW M3x8NI2
6U24208001TAPTITE SCREW M2.6x81
7U20305007BINDING HEAD SCREW M3x5B2
8U32450007FLAT HEAD SCREW M2.6x5B2
9U31306007OVAL HEAD SCREW M3x6B2
10S5000182SCREW JFS-4S-B1MW2
Accessories
DescriptionVXSTD P/NQty.
BLADE FUSE ATC 15AQ0000075 2
DC CABLE 02P 15AX2T9021015 1
KNOB CAPRA0254100 5
NAME PLATERA0254700 1
RA0253000LCD HOLDER
VR Unit
VR3601*
RA0254000RUBBER KNOB (PWR)
RA0254200RUBBER PACKING
RA0251900PANEL ASSY
Á
Á
Supplide is VR3601*
DISPLAY Unit
RA0252800DIFFUSER SHEET
G6090140LCD
Ã
Ã
RA0262600HOLDER
MAIN Unit
RA0262400PACKING SHEET
MIC CONN Unit
RA0252700REFLECTOR SHEET
Ã
Ã
Ã
Ã
Ã
KEY Unit
À
Ã
Ã
Ã
Ã
R0145680FITTING (x4 pcs)
M4090133SPEAKER
À
Â
Â
Â
Â
P1090654CONNECTOR(W/ *A)
MIC CONN Unit
Ã
Ã
Ã
RA0254800
RA0252300LIGHT GUIDE
RA0252900RUBBER CONNECTOR
CONTACT ASSY (Both Side)
Â
Ä
Â
À
Exploded View & Miscellaneous Parts
RA0254900CASE
À
RA0262700PACKING SHEET
Q6000114TERMINAL STRIP
Å
Â
Ä
*A
Â
RA0215000EXT CAP
Â
Ç
Á
É
É
Á
Á
RA0251500CHASSIS
RA020830ADOUBLE FACE (Both Side)
RA0215400SHEET
Æ
Æ
S6000395COVER P-25P(23)
T9206926WIRE ASSY
Á
RA0262300HOLDER PLATE
RA0262500PACKING SHEET
S6000396RUBBER GROMMET TM-96-17
P1090984CONNECTOR
RA02543A0KNOB
RA0254300KNOB
È
R6054387BSPECIAL NUT
È
RA0253900RUBBER KNOB (CH)
RA0275500RUBBER KNOB ASSY
Non-designated parts are available only as part of adesignated assembly.
3-1
Page 17
Block Diagram
3-2
Page 18
Block Diagram
3-3
Page 19
Interconnection Diagram
3-4
Page 20
Circuit Description
Reception and transmission are switched by "RX"and "TX" lines from the microprocessor unit (MPU).The receiver uses double-conversion super-hetero-dyne circuitry, with a 43.95MHz 1st IF and 450 kHz2nd IF. The 1st LO, produced by a PLL synthesizer,yields the 43.95MHz 1st IF.
The 2nd LO uses a 43.5 MHz (43.95 MHz-450 kHz)signal generated by a crystal oscillator. The 2nd mix-er and other circuits use a custom IC to convert andamplify the 2nd IF, and detect FM to obtain demod-ulated signals. During transmit, the PLL synthesiz-er oscillates at the desired frequency directly, foramplification to obtain RF power output. Duringtransmit, voice modulation and CTCSS (or DCS)modulation are applied to this synthesizer. Trans-ceiver functions, such as Tx/Rx control, PLL synthe-sizer settings, and channel programming, are con-trolled using the MPU.
Receiver
Incoming RF signals from the antenna connectorare delivered to the MAIN Unit, and pass through alow-pass filter (LPF) antenna switching networkconsisting of coils L1008, L1004, L1022 and L1003,capacitors C1338, C1337, C1336, C1335, and C1037,and antenna switching diodes D1047, D1048 andD1049 for delivery to the receiver front end.
Signals within the frequency range of the trans-ceiver are then passed through a varactor-tunedband-pass filter consisting of L1007, L1020 before RFamplification by Q1018 (2SC3357).
The amplified RF is then band-pass filtered againby varactor-tuned resonators L1009, L1011 to ensurepure in-band input to 1st mixer Q1188, Q1189, Q1190,Q1191 (2SK520 x 4).
Buffered output from the VCO Unit is amplifiedby Q1032 (2SC5107), Q1192 (2SC3357) and low-pass filtered by L1041 / L1045/ L1060and C1153 /C1154 / C1174/C1089, to provide a pure 1st local sig-nal between 177.95 and 217.95 MHz to the 1st mix-er.
The 43.95MHz 1st mixer product then passesthrough dual monolithic crystal filters XF1001 andXF1002 (12 kHz BW)/ XF1003 and XF1004 (7kHz BW)and is amplified by Q1041 (2SC4215Y) and deliv-ered to the input of the FM IF subsystem IC Q1034(TA31136FN).
This IC contains the 2nd mixer, 2nd local oscilla-tor, limiter amplifier, FM detector, noise amplifier,and squelch gates.
The 2nd LO in the IF-IC is produced from crystalOSC X1001 (14.500MHz), and the 1st IF is convertedto 450kHz by the 2nd mixer and stripped of unwant-ed components by ceramic filter CF1001 or CF1002.After passing through a limiter amplifier, the signalis demodulated by the FM detector.
Demodulated receive audio from the IF-IC isamplified by Q2019 (CXA1846N). After volume ad-justment by the AF power amplifier Q2018(TDA7240AV), the audio signal is passed to the op-tional headphone jack or 4 W loudspeaker.
PLL synthesizer
The 1st LO maintains stability from the PLL syn-thesizer by using a 14.500 MHz reference signal fromcrystal OSC X1001. PLL synthesizer IC Q1033(SA7025DK) consists of a prescaler, referencecounter, swallow counter, programmable counter,a serial data input port to set these counters basedon the external data, a phase comparator, and chargepump. The PLL-IC divides the 14.500 MHz refer-ence signal by 725 using the reference counter (20.0kHz comparison frequency). The phase detectorcomparison frequency to be eight times the channelspacing (2.5kHz). The VCO output is divided by theprescaler, swallow counter and programmablecounter. These two signals are compared by thephase comparator and input to the charge pump. Avoltage proportional to their phase difference is de-livered to the low-pass filter circuit, then fed back tothe VCO as a voltage with phase error, controllingand stabilizing the oscillating frequency. This syn-thesizer also operates as a modulator during trans-mit.
The RX-VCO is comprised of Q1019 (2SK520) andD1010, D1011, D1016, D1018 (1SV282 x 4), and os-cillates between 177.950MHz and 217.950MHz ac-cording to the programmed receiving frequency.And the TX-VCO is comprised of Q1020 (2SC4226-R24) and D1014, D1015 (1SV282 x 2), D1020(1SV284) and oscillates between 134.000MHz and
174.000MHz according to the programmed transmitfrequency. The VCO output passes through bufferamplifier Q1026 (2SC5107), and a portion is fed tothe buffer amplifier Q1029 (2SC5107) of the PLL IC,and at the same time amplified by Q1032 (2SC5107)to obtain stable output. The VCO DC supply is reg-ulated by Q1006 (2SC4154E). Synthesizer output isfed to the 1st mixer by diode switch D1021 (1SS321)during receive, and to drive amplifier Q1031(2SC3356) / Q1025 (2SC3357) for transmit.
4-1
Page 21
Circuit Description
Transmitter
Voice audio from the microphone is delivered via
the MIC (Jack) Unit to the MAIN Unit, after passingthrough amplifier Q3039/Q2040 (NJM2902V), pre-emphasis, limiter (IDC instantaneous deviation con-trol), and LPF Q2001 (NJM2902V), is adjusted foroptimum deviation level and delivered to the nextstage.
Voice input from the microphone and CTCSS areFM-modulated to the VCO of the synthesizer, whileDCS audio is modulated by the reference frequencyoscillator of the synthesizer.
Synthesizer output, after passing through diodeswitch D1025 (1SS321), is amplified by driver Q1031(2SC3356) / Q1025 (2SC3357) and power moduleQ1017 (RA60H1317M) to obtain full RF output. TheRF energy then passes through antenna switchD2015 / D2016 and a low-pass filter circuit and fi-nally to the antenna connector.
RF output power from the final amplifier is sam-pled by CM coupler and is rectified by D1037, D1038(HSM198S x 2). The resulting DC is fed through Au-tomatic Power Controller Q1007 (NJM2904V) totransmitter RF amplifier and thus the power out-put.
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. Addition-al harmonic suppression is provided by a low-passfilter consisting of L1008 L1004, L1002, L1001 andC1338, C1336, C1337, C1335, C1334, C1333, C1332and C1326, resulting in more than 60 dB of harmon-ic suppression prior to delivery to the RF energy tothe antenna.
DCS Demodulator
DCS signals are demodulated on the MAIN-
UNIT, and are applied to low-pass filter Q2040(NJM2902V), as well as the limiter comparatorQ2003.
CTCSS encoder/decoder
The CTCSS code is generation and encoding by
MPU IC Q2025 (MB90F583B).
Demodulation and detection of the CTCSS tones
are carried out by IC Q2017 (MX165C).
MPU
Operation is controlled by 16-bit MPU IC Q2025
(MB90F583B). The system clock uses a 16.000 MHzcrystal for a time base. IC Q2035 (RN5V35AA) resetsthe MPU when the power is on, and monitors thevoltage of the regulated 5V power supply line.
EEPROM
The EEPROM retains TX and RX data for all mem-ory channels and CTCSS data, DCS data, prescalerdividing, and REF oscillator data (internal/external).
4-2
Page 22
Alignment
The VX-5500 has been carefully aligned at thefactory for the specified performance across the fre-quency range specified for each version.
Realignment should therefore not be necessaryexcept in the event of a component failure, or whenaltering the transceiver version. If a sudden prob-lem occurs during normal operation, it is likely dueto component failure; realignment should not bedone until after the faulty component has been re-placed. All component replacement and serviceshould be performed only by an authorizedVERTEX STANDARD representative, or the warran-ty policy may be voided. Therefore, if a fault is sus-pected, contact the dealer from whom the transceiverwas purchased for instructions regarding repair.
Authorized VERTEX STANDARD service tech-nicians realign all circuits and make complete per-formance checks to ensure compliance with factoryspecifications 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 rightto change circuits and alignment procedures in theinterest of improved performance, without notify-ing owners.
Under no circumstances should any alignmentbe attempted unless the normal function and oper-ation of the transceiver are clearly understood, thecause of the malfunction has been clearly pinpoint-ed and any faulty components replaced, and theneed for realignment determined to be absolutelynecessary.
Required Test Equipment
The following test equipment (and thorough fa-miliarity with its correct use) is necessary for com-plete realignment. Correction of problems causedby misalignment resulting from use of improper testequipment is not covered under the warranty poli-cy.
While most steps do not require all of the equip-ment listed, the interactions of some adjustmentsmay require that more complex adjustments be per-formed afterwards. Do not attempt to perform onlya single step unless it is clearly isolated electricallyfrom all other steps. Have all test equipment readybefore beginning, and follow all of the steps in a sec-tion in the order presented.
rRF signal generator: calibrated output level at
1000 MHz
rDeviation Meter (linear detector)rAF MillivoltmeterrSINAD MeterrInline Wattmeter with 5% accuracy at 1000 MHzrRegulated DC Power Supply: adjustable from 10
to 17 VDC, 15A
r50-ohm non-reactive Dummy Load: 100 W at 1000
MHz
rFrequency Counter: <0.1 ppm accuracy at 1000
MHz
rAF Signal GeneratorrDC Voltmeter: high impedancerRF Sampling Coupler (attenuation pad)rAF Dummy Load: 4 ohms, 20WrOscilloscoperSpectrum AnalyzerrIBM PC-compatible computer w/VERTEX
STADARD CT-71 programming cable and CE49channel programming editor.
Alignment Preparation & Precautions
A dummy load and inline wattmeter must be con-nected to the main antenna jack in all proceduresthat call for transmission, except where specifiedotherwise. Correct alignment is not possible with anantenna. 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 con-nected) before proceeding.
Correct alignment requires that the ambient tem-perature be the same as that of the transceiver andtest equipment, and that this temperature be heldconstant between 68° and 86°F (20° ~ 30°C). Whenthe transceiver is brought into the shop from hot orcold air it should be allowed some time for thermalequalization 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 thoroughlywarmed up before beginning.
5-1
Page 23
Alignment
2-ohm
Attenuated
Test Output(1/2)
Before beginning, connect the transceiver and PCusing the CT-71 programming cable, and downloadthe EEPROM data from the transceiver to the com-puter.
Store this data in a disk file so that it can be savedand retrieved later. Using the table below, programthe channel, CTCSS, and DCS alignment settings foryour transceiver version. Upload this file to thetransceiver.
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 hasadequate capability to handle the audiooutput 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 testadapter as shown in the schematic diagrambelow, when conducting receiver align-ment steps.
3.5 PLUG
10W
GND
2-ohm10W
(4-ohm Dummy Load)
470uF
AF Test Adapter Schematic
Alignment Channel Frequencies
Channel
CH1148.01 MHzNoneNoneWide
CH2161.01 MHzNoneNoneWide
CH3173.99 MHzNoneNoneWide
CH4148.01 MHzNoneNoneNarrow
CH5161.01 MHzNoneNoneNarrow
CH6173.99 MHzNoneNoneNarrow
CH7161.01 MHz151.4 HzNoneWide
CH8161.01 MHzNone023Wide
CH9161.01 MHz151.4 HzNoneNarrow
CH10161.01 MHzNone023Narrow
FrequencyCTCSSDCS
(simplex)EncodeEncode
Narrow/Wide
PLL & Transmitter
Set up the test equipment as shown for transmit-
ter alignment.
Maintain the supply voltage at 13.8 V DC for all
steps.
50-Ohm
Dummy Load
RF SignalGenerator
Inline Wattmeter
Deviation Meter
Frequency
Counter
RF Sampling
Coupler
CT-71 connectionCable
PC
COM port
Transceiver
Power Supply
13.8V DC
PLL VCV
rConnect the positive lead of the DC voltmeter to
test point TP1008 (VCV) on the Main Unit, as in-dicated in the figure, and connect the negativelead to chassis ground.
rSet the transceiver to the high band edge fre-
quency channel (CH3 or CH6), then key the trans-mitter, and adjust L1026 on the Main Unit for 4.3V ±0.1 V on the voltmeter.
rAdjust L1023 on the Main Unit for 4.3 V ±0.1 V
on the voltmeter.
rNext select to the low edge frequency channel
(CH1 or CH4) and confirm the VCV is more than
1.0 V on the voltmeter.
rKey the transmitter, and confirm the VCV is more
than 1.0 V on the voltmeter.
PLL Reference Frequency
With the wattmeter, dummy load and frequencycounter connected to the antenna jack, and selectband center frequency channel (CH2 or CH5), keythe transmitter and adjust VR1001 on the Main Unit,if necessary, so the counter frequency is within 100Hz of the channel center frequency for the trans-ceiver version.
5-2
Page 24
Alignment
Transmitter Output Power
The following transmitter parameters can be ad-justed from the computer by utilizing the AlignmentSoftware. Refer to the onboard help of the Align-ment Software Manual for details.
rSelect the band center frequency channel (CH2
or CH5), and select the “high” power output level.
Key the transmitter and adjust “TX PWR Hi“ for a
power output of 50 Watts (± 1.0 W) as indicated
on the wattmeter.rStay on the band center frequency channel (CH2
or CH5), and select the “low” power output level.
Key the transmitter and adjust “TX PWR L3“ for
a power level of 25 Watts (± 0.5 W) as indicated
on the wattmeter.
Transmitter Deviation
The following modulation parameters can be ad-justed from the computer by utilizing the AlignmentSoftware. Refer to the onboard help of the Align-ment Software Manual for details.
Microphone Audio Modulation Level
rSelect the band center frequency channel (CH2),
and select the “low” power output level.rAdjust the AF generator for 50mV (–30dBm) out-
put at 1 kHz, as applied to the microphone jack.rKey the transmitter and adjust “MAX Dev (wide)“
for maximum deviation of 4.3 kHz ± 0.1 kHz as
indicated on the deviation meter.rSelect the band center frequency channel (CH5),
and select the “low” power output level.rAdjustdjust the AF generator for 50mV (–30dBm)
output at 1 kHz, as applied to the microphone
jack.
TP1008L1023L1026VR1001
5-3
Page 25
Alignment
Power Supply
rKey the transmitter and adjust “MAX Dev (Nar-
row)“ for maximum deviation of 2.2 kHz ± 0.2 kHz
as indicated on the deviation meter.
CTCSS Modulation Level
rSelect the “low” power output level.rSelect the band center frequency channel (CH7),
with 151.4 Hz CTCSS encode, and reduce the AFgenerator injection to zero.
rKey the transmitter and adjust “CTCSS Dev (wide)“
for CTCSS deviation of 0.9 kHz ± 0.1 kHz as indi-cated on the deviation meter.
rSelect the band center frequency channel (CH9),
with 151.4 Hz CTCSS encode, and reduce the AFgenerator injection to zero.
rKey the transmitter and adjust “CTCSS Dev (Nar-
row)“ for CTCSS deviation of 0.45 kHz ± 0.1 kHz
as indicated on the deviation meter.
DCS Modulation Level
rSelect the “low” power output level.rSelect the band center frequency channel (CH8),
with 023 DCS code, and reduce the AF generatorinjection to zero.
rKey the transmitter and adjust “DCS Dev (wide)“
for DCS deviation of 0.8 kHz ± 0.1 kHz as indi-cated on the deviation meter.
rSelect the band center frequency channel (CH10),
with 023 DCS code, and reduce the AF generatorinjection to zero.
rKey the transmitter and adjust “DCS Dev (Nar-
row)“ for CTCSS deviation of 0.4 kHz ± 0.1 kHz
as indicated on the deviation meter.
Receiver
The sensitivity parameters can be adjusted fromthe computer by utilizing the Alignment Software.Refer to the onboard help of the Alignment SoftwareManual for details.
rSet 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-71ConnectionCable
AC Volt
Meter
rWith 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 –5.0 dBµ
at the antenna jack.rAdjust “Rx TUNE“ the receiver front-end tuning
for optimum SINAD, reducing signal generator
output level as necessary for proper meter de-
flection.rAfter the previous step, the final signal genera-
tor level should be less than –5.0 dBµ for 12dB
SINAD.
RF SignalGenerator
13.8V DC
13.6
Transceiver
AF Generator
SINAD
Meter
AF Test
Adapter
5-4
Page 26
Alignment
Squelch Threshold
The squelch parameters can also be adjusted fromthe computer by utilizing the Alignment Software.Refer to the onboard help of the Alignment SoftwareManual for details.
Tight SQL RSSI LEVEL (Wide)
rSelect the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz
deviation with 1 kHz tone modulation, and set
the output level for 3.0 dBµ at the antenna jack.
Threshold NSQ LEVEL (Wide)
rSelect the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz
deviation with 1 kHz tone modulation, and set
the output level for –8.0 dBµ at the antenna jack.
Tight SQL NSQ LEVEL (Wide)
rSelect the band center frequency channel (CH2),
and with the RF signal generator turned to the
same frequency, set the generator for ±3.0 kHz
deviation with 1 kHz tone modulation, and set
the output level for 0 dBµ at the antenna jack.
Tight SQL RSSI LEVEL (Narrow)
rSelect the band center frequency channel (CH5),
and with the RF signal generator turned to thesame frequency, set the generator for ±1.5 kHzdeviation with 1 kHz tone modulation, and setthe output level for 3.0 dBµ at the antenna jack.
Threshold NSQ LEVEL (Narrow)
rSelect the band center frequency channel (CH5),
and with the RF signal generator turned to thesame frequency, set the generator for ±1.5 kHzdeviation with 1 kHz tone modulation, and setthe output level for –8.0 dBµ at the antenna jack.
Tight SQL NSQ LEVEL (Narrow)
rSelect the band center frequency channel (CH5),
and with the RF signal generator turned to thesame frequency, set the generator for ±1.5 kHzdeviation with 1 kHz tone modulation, and setthe output level for 0 dBµ at the antenna jack.
rAdjust the squelch threshold level “Tight SQL
NSQ(Narrow)“ such that the squelch just open at
this signal input level (the BUSY LED will turnon).
5-5
Page 27
Alignment
Note:
5-6
Page 28
Circuit Diagram
Circuit Diagram
MAIN Unit
MAIN Unit
(13.8V)
3.54V(1.9V)
4.93V
(1.9V)
(8.93V)
1.55V
(1.9V)
3.52V
7.65V
2.4V
3.52V(1.88V)
(8.87V)
0.84V
(8.13V)
3.78V
3.09V
7.1V
7.79V(7.68V)
2.55V
(2.67V)
(7.54V)
(3.6V)
1.4V
1.9V
(3.18V)
0.6V
2.21V
1.8V(1.75V)
7.76V
1.27V(1.05V)
(4.0V)
6.45V
2.9V
(4.76V)
(7.5V)
Wide : (8.69V)Narrow : (4.06V)
(4.94V)
(0V)
(0.9V)
(2.37V)
(5.66V)
(0.96V)
(5.54V)
(4.47V)
Wide : (4.06V)Narrow : (8.69V)
(5.3V)
(5.0V)
(0.79V)
(4.31V)
(5.66V)
(4.81V)
(5.29V)
(2.07V)
(1.05V)
(0.64V)
Wide : (8.69V)Narrow : (4.05V)
(4.76V)
Wide : (4.06V)Narrow : (8.69V)
(3.01V)
Wide : (4.93V)Narrow : (0V)
3.94V
3.95V
(13.75V)
Narrow : 1.87VWide : 1.94V
(13.11V)
4.45V
3.95V
4.46V
(8.82V)
4.45V
8.2V(8.84V)
Narrow : 4.93VWide : 0.0V
(3.8V)
0V (4.97V)
(2.77V)
(1.87V)
8.81V
8.84V (8.2V)
4.97V(0V)
(8.42V)
0V(4.95V)
(8.81V)
(3.14V)
2.5V(2.9V)
0V(4.95V)
(4.39V)
(1.34V)
(7.19V)
(2.13V)
(2.62V)
(8.5V)
(2.65V)
(4.8V)
Narrow : (4.03V)Wide : (8.7V)
(4.0V)
(4.89V)
Narrow : (8.7V)Wide : (4.03V)
(4.94V)
Narrow : (0.07V)Wide : (8.7V)
(0.6V)
(2.93V)
Narrow : (8.7V)Wide : (0.07V)
Narrow : (8.7V)Wide : (4.03V)
Narrow : (4.03V)Wide : (8.7V)
(3.27V)
(4.8V)
(3.82V)
(3.23V)
(1.42V)
(8.59V)
(2.44V)
(2.57V)
(8.32V)
XX : TX 161.1 MHz, MIC Input Level 1 kHz 3.0mV (STD Dev), High Power(XX) : RX 161.1 MHz, RF Input Level 40dBµ emf (MOD=1.0 kHz, Dev=3.0 kHz), EXT SP OUT 10% Distn