Vertex Standard VXA-150 Manuel utilisateur

Service Manual

Air Band Transceiver

Contents

Operating Manual Reprint......................... 2

Specifications................................................ 6

CE32 Programming Software .................... 7

Exploded View & Miscellaneous Parts.... 9

Block Diagram ............................................ 10

Circuit Description ......................................11

Alignment .....................................................14

Board Unit (Schematics, Layouts & Parts) .......17

MAIN Unit ........................................................... 17

VR Unit ................................................................. 30

SW Unit ................................................................. 31

The Vertex Standard VXA-150 ProVis a compact, stylish, solid hand-held transceiver providing commu-

nication (transmit and receive) capability on the International Aircraft Communication Band (“COM” band:

118 ~ 136.975 MHz), and it additionally provides receive on the “NAV” band (108 ~ 117.975 MHz).

The VXA-150 includes our exclusive two-mode display with upright or inverted viewing when on your

belt, NOAA weather band monitoring, 8-character Alpha/Numeric Display, 50 Memory Channels, and 100

“Book Memory” Channels.

The following pages describe the Controls & Connectors, Accessories & Options, and Specification of the

VXA-150. With proper care and operation, the transceiver will provide many years of reliable communica-

tions.

VXA-150

VERTEX STANDARD CO., LTD.

4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan

VERTEX STANDARD

US Headquarters

17210 Edwards Rd., Cerritos, CA 90703, 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 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

SPL

BEEP

SKIP

MW DW ANL

121.5

Operating Manual Reprint (Partial)

CONTROLS & CONNECTORS

Antenna Jack

This SMA jack accepts the supplied flexible antenna,

or another antenna designed to provide 50 Wimped-

ance on the Aircraft Communication Band.

POWER/VOLUME Knob

Turn this control clockwise to turn the radio on and to

increase the volume. Counterclockwise rotation into

the click-stop will turn the radio off.

CHANNEL Selector Knob

This 20-position detended rotary switch tunes the op-

erating frequency or selects the memory channels.

Pressing this knob downward momentarily selects the

tuning methods among the VFO (Variable Frequency

Oscillator), MR (Memory Recall), BOOK (Pre-Pro-

grammed Memories), and WX (Weather Channel

Memories) mode.

LCD (Liquid Crystal Display)

The display shows the selected operating conditions

as indicated on the next page.

The display may be changed to “inverted” viewing

via the Menu.

BUSY/TX Indicator Lamp

This lamp glowsgreen when a signal is being received

and red when transmitting.

Loudspeaker

The internal speaker is located in this position.

Microphone

Speak across this opening in a normal voice level while

pressing the PTT switch.

Keypad

Several keys have dual functions.

The primary functions are labeled on the key top (ac-

tivated by simply pressing the key momentarily),

while secondary functions are labeled in yellow above

the top edge of the key (activated by pressing the [F]

key first, then the indicated key).

TOP Panel

Front Panel

Operating Manual Reprint (Partial)

CONTROLS & CONNECTORS

Battery Pack Latch

Open this latch for battery removal.

PTT (PUSH TOTALK)Switch

Press this button to transmit when you are operating

in the COM band. Release this button to return to the

“RECEIVE” mode.

MONITOR Switch

This button may be pressed to “open” the squelch

manually, allowing you to listen for very weak sig-

nals. Press and hold this button for 2 seconds to “open”

the squelch continuously. Press this button again to

resume normal (quiet) monitoring.

LAMP Switch

Pressing the LAMP switch momentarily will illuminate the

display and keypad for five seconds, after which the back-

lighting will automatically turn off. Press and hold this

switch for 2 seconds to activate the back-lighting lamp con-

tinuously. To turn the lamp off, press this switch again. The

LAMP switch may be configured in several ways via

the Menu.

MIC/EAR Jack

You may connect the supplied CT-60 Headset Cable

or the (optional) MH-44A4B Speaker/Microphone to

this jack.

Never connect any Speaker/Microphone that is

not recommended by the manufacturer. Because

these jack connections are unique, using a Speaker/

Microphone that is not specified by Vertex Standard

may damage the VXA-150.

EXT DC Jack

When an external 12-Volt DC power source is avail-

able, you may connect the (optional) E-DC-5B Exter-

nal DC Cable here. Do not connect any wire to this

jack if that wire is connected directly to a 28-Volt DC

source. Connecting the VXA-150 directly to a source

which exceeds 15.0 Volts DC will result in damage to

the unit.

Left Side Right Side

Operating Manual Reprint (Partial)

KEYPAD

LCD DISPLAY

This indicator con-

firms that the AUTO-

MATIC NOISE LIMITER is

activated.

This icon is the “Low

Battery” indicator,

which blinks when

the battery voltage

becomes too low for

proper operation.

This indicator con-

firms that DUAL

WATCH is active.

This indicator con-

firms that the “Split”

(Duplex) mode is

activated.

This indicator con-

firms that this chan-

nel will be skipped

during scan.

These digits provide frequency or alphanumeric

information about the channel you are using.

This icon indicates

that the “Book”

Memory Bank is in

use.

This indicator con-

firmsthat Secondary

Key Function is ac-

tive.

Primary Function

(Press Key)

Secondary Function

(Press +)

Primary Function

(Press Key)

Primary Function

(Press Key)

Primary Function

(Press Key)

Frequency Entry

Digit 1 Frequency Entry

Digit 2 Frequency Entry

Digit 3

Frequency Entry

Digit 4 Frequency Entry

Digit 5 Frequency Entry

Digit 6

Frequency Entry

Digit 7 Frequency Entry

Digit 8 Frequency Entry

Digit 9

Frequency Entry

Digit 0

Selects Memory Display

Type

Locks the Keypad

Selects Emergency

Channel (121.5 MHz)

None None None

None

NoneNone

Activates Automatic Noise

Limiter

Activates Split (Duplex)

mode On/Off Switch

for Keypad Beeper Allows Skipping of

Channel during Scan

Activates Scanning Activates “Secondary”

Key mode

Activates Dual Watch

Memory “Write”

Command

Split-Memory “Write”

Command

Secondary Function

(Press +)

Secondary Function

(Press +)

Secondary Function

(Press +)

NoneNoneNone

None

321

4 5 6

121.5

ANL

SKIP

BEEP

SPL

Operating Manual Reprint (Partial)

FIELD PROGRAMMING MODE

The VXA-150’s Book Memories also allow the user to store, label, and recall channel frequencies which you may want

to use frequently while the VXA-150 is in the Field Programming mode.

Memory Storage into the Book Memory

rPress and hold the PTT and LAMP switches while

turning the radio on, to activate the Field Program-

ming Mode.

rSelect the desired frequency to be stored in the Book

Memory.

rPress and hold the [MW(SPL.W)] key for 2 seconds.

The display will indicate “BOOK-” and a channel num-

ber will blink on the LCD.

rWithin five seconds of pressing the [MW(SPL.W)]key,

rotate the CHANNEL selector knob to select the de-

sired memory channel number for storage.

rNow press and hold in the [MW(SPL.W)] key for 2

seconds; you will now see “--------” on the LCD. To

attach an alpha/numeric name (label) to the memory,

proceed to the next step; otherwise press and hold the

[MW(SPL.W)] key for 2 seconds to save the entry and

exit.

rTo label a memory with an alpha/numeric name, the

next step is to use the CHANNEL selector knob to se-

lect any of the 48 available characters (including let-

ters, numbers, and special symbols). When the desired

first character appears, press down on the CHANNEL

selector knob momentarily to move on to the next char-

acter.

rSelect succeeding characters in the same manner,

pressing down on the CHANNEL selector knob mo-

mentarily after each selection.

rAfter entering the entire name (eight characters maxi-

mum), press the [MW(SPL.W)] key for 2 seconds to

save all data for the channel.

rTurn the radio off, then turn the radio back on again

to begin normal operation.

ACCESSORIES & OPTIONS

Supplied Accessories

Ni-Cd Battery Pack FNB-64

Overnight Charger NC-72B/C/Uø

Helical Antenna ATV-7

Headset Cable CT-60

Operating Manual

Warranty Card

ø:“B”suffix is for use with 120 VAC,

“C” suffix is for use with 230-240 VAC, or

“U”suffix is for use with 230 VAC.

Available Options

MH-44A4B Speaker Microphone

FNB-V57 Ni-Cd Battery Pack (7.2V, 1100mAh)

(Requires VAC-400 or NC-76)

FBA-25 Alkaline Battery Case

VAC-400 Desktop Rapid Charger

NC-76B/C/UøOvernight Desktop Charger

E-DC-5B External Power Cable

CN-3 Antenna Adapter

Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable

in some regions. Consult your Vertex Standard Dealer for details regarding these and any newly-available options.

Connection of any non-Vertex Standard-approved accessory, should it cause damage, may void the Limited Warranty on this appara-

tus.

Specifications

General

Frequency Range:TX: 118.000 - 136.975 MHz,

RX: 108.000 - 136.975 MHz,

Weather Channels (WX-01 - WX-10)

Channel Spacing:25 kHz

Emission Type:TX: AM, RX: AM & FM

Supply Voltage:6.0 - 15.0 VDC

Current Consumption (approx.): < 1 µA (power off),

17 mA (battery saver on, saver ratio 1:5),

47 mA (squelch on),

180 mA (receive),

1 A (transmit 1.5 W Carrier)

Temperature Range:+14 °F to + 140 °F (–10 °C to +60 °C)

Case Size (WxHxD): 2.3 x 4.3 x 1.0 inches (58 x 108.5 x 26.5 mm) w/FNB-64

Weight (approx.): 0.75 lb (340 grams) with FNB-64, antenna, and belt clip

Receiver

Circuit Type:Double-conversion superheterodyne

IFs:35.4 MHz & 450 kHz

Sensitivity:<0.8 µV (for 6 dB S/N with 1 kHz, 30 % modulation)

Selectivity:>8 kHz/–6 dB

Adjacent CH. Selectivity:<25 kHz/–60 dB

AF Output (@7.2 V): 0.4 W @ 8 Ohms, 10 % THD

Transmitter

Power Output (@ 7.2 V): 5.0 W (PEP), 1.5 W (Carrier Power)

Frequency Stability:Better than ±10 ppm (+14 °F to + 140 °F [–10 °C to +60 °C])

Modulation System:Low Level Amplitude Modulation

Spurious Emission:>60 dB below carrier

Int. Microphone Type:Condenser

Ext. Mic. Impedance:150 Ohms

Specifications are subject to change without notice or obligation.

CE32 Programming Software

CE32 Programming Software Instructions

With the CE32 programming Software you can quickly and easily program the features and memories of the Vertex

Standard VXA-150 heavy duty air band transceiver from your personal computer. The CE32 Programming Software

allows custom memory files to be stored, saved, merged, and edited for convenience when planning a journey. In the

event of an accidental memory failure, transceiver memory and configuration data may be re-loaded in a matter of min-

utes.

The CE32 Programming Software diskette contains the following files:

mCE32.EXE - The executable programming software;

mCE32.HLP - The "Help" file used with the main program; and

mCE32.CFG - The "Configuration" file for the main program.

Before connecting the VXA-150 for programming, turn off both the computer and the VXA-150. Now connect the CT-

42A PC Programming Cable to the computer's serial port and the VXA-150 as shown in the illustration. Then it will be safe

to restart the computer; turning off the equipment during interconnection avoids damage to the electronics caused by

voltage spikes.

Insert the distribution diskette into your 3½" drive (after booting DOS), and make a copy of the diskette; use the

distribution diskette for archive purposes, and use the disk copy for programming.

Place the CE32 (copy) diskette into your 3½" drive (usually "Drive A"), and log onto this drive by typing A:[ENTER]. At

this point, you may make a directory for the CE32 software, if you like, according to standard DOS procedures (using the

MKDIR command). Load the contents of the CE32 diskette into this directory, using the COPY command (e.g. COPY A:*.*

C:\ [directory name]).

Now type CE32 [ENTER]to start the program. The introductory screen will appear, and you may press any key to enter

the main screen, as shown below.

Choose the "Help" contents option from the program's Menu for assistance with program operation.

Important Note!

Do not work directly with the CE32 programming diskette. Make a copy of it and use the copy when programming the

VXA-150. Keep it and the original distribution diskette in a safe place in case you need to make another copy of it later.

CE32 Programming Setup CE32 Main Screen

Personal

Computer

MIC/EAR

VXA-150

CT-42A PC Programming Cable

1 2 3

SPL

BEEP SKIP

MW DW ANL

5 6

121.5

Notes

Exploded View & Miscellaneous Parts

CAUTION

The mic element must be desoldered and

removed from the PCB on order to rein-

stall its protective rubber cover.

Therefore, be careful

not to remove this

cover unless mic ele-

ment replacement is

necessary.

Non-designated parts are available only as part of a designated assembly.

ÀÀ

ÂÀ

ÇÇ

RA0209600

BRACKET

RA0209500A

LIGHT GUIDE

RA0107000

TERMINAL PLATE R

G6090139

LCD

VR Unit

RA008890A

O-RING

RA0211100

INTER CONNECTOR (LCD)

RA0211200

INTER CONNECTOR (PCB)

DIAL KNOB

RA0217600

RA0209700

VOL KNOB

RA0111500

SPECIAL NUT

RA0210900

WINDOW

RA0211500

RUBBER CAP

RA0111400

RING NUT

RA0210600

RUBBER PACKING (KNOB)

RA0248200

GROUND PLATE

RA021020A

RUBBER PACKING (CASE)

CP7225001

REAR CASE ASS'Y

RA0210300

RUBBER KNOB (PTT)

RA0385500

FRONT CASE ASS'Y

RA0384200

RUBBER KNOB (AIR-PRIN)

RA0123500

LATCH NAIL B

CP7227001

BELT CLIP ASS'Y

SW UNIT

MAIN UNIT

RA0110200

HOLDER RUBBER

M4090142B

SPEAKER

RA0128900

MYLAR SHEET

RA0210100

HOLDER

Qty.

VXSTD P/N

U9900068

U9900098

U9900101

U9900086

U9900051

U07230107

U9900063

U02206007

No.

Description

TAPTITE SCREW M2´4 NI #3

TAPTITE SCREW M2´7 NI #3

PAN HEAD SCREW M1.7´14 NI #2

TAPTITE SCREW M1.7´2.5B

TAPTITE SCREW M2´4B #3

PAN HEAD SCREW M2´3B #1

TAPTITE SCREW 2´3.3 NI

SEMS SCREW SM2.6´6B

À Á

RA0106900

TERMINAL PLATE L

Block Diagram

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