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Make/Model Information:

  • Brand:   Yaesu
  • Models included:
    • Yaesu VXA-710

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   40
  • File size:  ∼ 2.80 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ROYA-0032

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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Air Band Transceiver
VXA-710
Service Manual
Introduction
This manual provides technical information necessary for
servicing the VXA-710 Transceiver.
Servicing this equipment requires expertise in handling sur-
face-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 thr board
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 (trim-
mers, coils, electrolytic capacitors, ICs, etc.), or leaded com-
ponents only.
While we believe the technical information in this manual
to be correct, Vertex Standard assumes no liability for dam-
age 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.
2005 VERTEX STANDARD CO., LTD. (EC062N90A)
Contents
Specifications
Exploded View & Miscellaneous Parts
Block Diagram
Connection Diagram
Circuit Description
Alignment
Board Unit (Schematics, Layouts & Parts)
RF Unit
AF Unit
CNTL Unit
VERTEX STANDARD CO., LTD.
4 8 8 Nakameguro, Meguro Ku, Tokyo 153 8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139 141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
Specifications
General
Frequency Range: TX 118.000 - 136.975 MHz (COM Band)
RX 88.000 - 108.000MHz (FM BC Band),
108.000 - 117.975 MHz (NAV Band),
118.000 - 136.975 MHz (COM Band),
151.5125 - 158.400MHz (BRS Memory Channels),
Weather Channel (WX-01 - WX-10)
Channel Spacing: 25 kHz (AIR Band),
5/10/12.5/15/20/25/50/100 kHz (FM BC Band)
Emission Type: TX: AM,
RX: AM & FM
Supply Voltage: 4.5 - 15.0 VDC
Current Consumption (approx.): 250 A (Power off), 35 mA (Battery saver on, save ratio 1:5),
60 mA (Squelch on), 180 mA (Receive),
800 mA (Transmit AM: 1.5W Carrier @ 7.4V),
400 mA (Transmit AM: 0.3W Carrier @ 4.5V)
Temperature Range: 22 F to +140 F (30 C to +60 C)
Case Size (WxHxD): 2.36” x 3.78” x 1.12” (60 x 96 x 28.5 mm) w/FNB-80LI
Weight (approx.): 9.9 oz. (280 grams) with FNB-80LI, antenna
Receiver
Circuit Type: Double-conversion Superheterodyne
IFs: 35.4 MHz & 450 kHz ( AM / NFM ),
45.65 MHz & 10.7MHz ( WFM )
Sensitivity: 88-108 MHz: better than 2 V (for 12 dB SINAD with 1 kHz tone @ 22.5 kHz deviation)
108 MHz-137 MHz: better than 1 V (for 6 dB S/N with 1 kHz tone @ 30 % modulation)
BRS-01 - BRS-21: better than 0.32 V (for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)
WX-01 - WX-10: better than 0.4 V (for 12 dB S/N with 1 kHz tone @ 3.5 kHz deviation)
Selectivity: AM/FM: more than 8 kHz/6 dB,
WFM: more than 200 kHz/6 dB
Adjacent Ch. Selectivity: AM/FM: less than 25 kHz/60 dB,
WFM: less than 300 kHz/20 dB
AF Output: 0.2 W @ 8 Ohms, 10 % THD @ 7.4V
0.4 W @ 8 Ohms, 10 % THD @ 13.8V
Transmitter
Power Output: 118 MHz-137 MHz: AM: 5.0 W (PEP), 1.5 W (Carrier Power) @ 7.4 V
Frequency Stability: Better than 2.5 ppm (22 F to 140 F/30 C to +60 C)
Modulation System: AM: Low Level Modulation
Spurious Emission: Better than 60 dB below carrier
Int. Microphone Type: Condenser
Ext. Mic. Impedance: 150 Ohms
Specification are subject to change without notice.
RA0400000
RUBBER PACKING
RA0648300
PANEL FRAME
RA0399500
WINDOW
RA0399400
DOUBLE FACE TAPE
RA0401600
O RING
RA0399800
LIGHT GUIDE (LED)
RA0400100
RUBBER KNOB (PTT)
RA0140100
MASK SHEET
RA0399700
HOLDER (PTT)
CP8041001
REAR CASE ASS’Y
with SMA CONNECTOR ASS’Y,
TERMINAL BOARD ASS’Y,
RUBBER KNOB (PTT),
RUBBER KNOB (PTT)
RA01403AA
LATCH NAIL
FNB 80LI
RA0399900
REFLECTOR SHEET
RA014250A
DOUBLE FACE TAPE (LCD) RA0399100
LIGHT GUIDE (LED)
Q7000510
LCD MODULE
RA0405600
MIC HOLDER RUBBER
CNTL Unit
RA0474600
O RING
AF Unit
RA0400900
O RING P0091335
CONNECTOR
RA0426900
O RING (ENC)
RA0087900
SPECIAL NUT
CP8045001
PANEL ASS’Y
with RUBBER KNOB, MIC SHEET,
SP SHEET, SP, PROTECTOR L,
PROTECTOR R
RA0292200
SPECIAL NUT
RA0400500
EXT CAP
RA0401200
ENCODER KNOB
RA0401900
VOLUME KNOB
RA0400600
CAP(SP/MIC)
RA0141600
RUBBER PACKING
FR008330C
FPC CABLE
U9900145 BINDING HEAD SCREW M2X21.7 (W/ O RING) 2
U9900138 BINDING HEAD SCREW M2X5 (W/ O RING) 4
U07225120 PAN HEAD SCREW M2X2.5SUS#1 4
U9900136 SPECIAL SCREW M2X2.35 1
RA0304300 WASHER 1
U00103002 PAN HEAD SCREW M2X3NI 1
U00104002 PAN HEAD SCREW M2X4NI 6
U9900140 TAPTITE SCREW M2X6SUS#3 2
U44104002 TAPTITE SCREW M2X4NI 4
U9900141 TAPTITE SCREW M1.7X5NI#3 2
U07125102 TAPTITE SCREW M1.7X2.5SUS#1 2
Exploded View & Miscellaneous Parts
RF Unit
There is a direction in
WASHER.
EXP CAP
RA0400200
STUD (X4 pcs)
Description
HELICAL ANTENNA ATV 14
LI ION BATTERY PACK FNB 80LI
BATTERY CHARGER NC 72B
HEADSET CABLE CT 96
VXSTD P/N
Q3000209
Q9000814
Q9500088
Q7000494
SUPPLIED ACCESSORIES
Non-designated parts are available
only as part of a designated assembly.


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