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Make/Model Information:

  • Brand:   Yaesu
  • Models included:
    • Yaesu VX-2R

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   44
  • File size:  ∼ 4.80 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ROYA-0021

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2003 VERTEX STANDARD CO., LTD. EH015M90A
Technical Supplement
Specifications
Exploded View & Miscellaneous Parts
Connection Diagram
Block Diagram
Circuit Description
Alignment
Board Units (Schematics, Layouts & Parts)
MAIN Unit
FILTER Unit
SW Unit
VCO Unit
Introduction
This manual provides the technical information necessary for servicing the VX-2R
VHF/UHF Ultra-Compact Dual-Band Transceiver with Wide Band Coverage.
Servicing this equipment requires expertise in handing surface-mount chip com-
ponents. Attempts by non-qualified persons to service this equipment may result
in permanent damage not covered by the warranty, and may be illegal in some
countries.
Two PCB layout diagrams are provided for each double-sided board in this trans-
ceiver. Each side of the board is referred to by the type of the majority of compo-
nents installed on that side (“Side A” or “Side B”). In most cases one side has only
chip components (surface-mount devices), and the other has either a mixture of
both chip and leaded components (trimmers, coils, electrolytic capacitors, ICs,
etc.), or leaded components only.
As described in the pages to follow, the advanced microprocessor design of the
VX-2R allows a complete alignment of this transceiver to be performed without
opening the case of the radio; all adjustments can be performed from the front
panel, using the “Alignment Mode” menu.
While we believe the information in this manual to be correct, VERTEX STAN-
DARD 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 incon-
sistencies in the technical information would be appreciated.
Contents
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.
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
Specifications
General
Frequency Ranges: RX 0.5-1.8 MHz (BC Band)
(USA Version) 1.8-30 MHz (SW Band)
30-76 (59) MHz (50 MHz HAM)
76 (59)-108 MHz (FM)
108-137 MHz (Air Band)
137-174 MHz (144 MHz HAM)
174-222 MHz (VHF TV)
222-420 MHz (ACT1)
420-470 MHz (430 MHz HAM)
470-800 (729) MHz (UHF TV)
(758-774) MHz (UHF TV)
800-999 MHz (ACT2; USA Cellular Blocked)
TX 144-146 (148) MHz
430-440 (450) MHz
Channel Steps: 5/9/10/12.5/15/20/25/50/100 kHz
Frequency Stability: 5 ppm (14 F to +140 C [10 C to +60 C])
Repeater Shift: 600 kHz (144 MHz)
1.6/5.0/7.6 MHz (430 MHz)
Emission Type: F2 , F3
Antenna Impedance: 50 W
Supply Voltage: Nominal:3.7 V DC, Negative Ground
Operating: 3.2 - 7.0 V, Negative Ground (EXT DC Jack)
5.5 - 7.0 V, Negative Ground (EXT DC Jack with Charging)
Current Consumption: 150 mA (Receive)
58 mA (Standby, Saver Off)
20 mA (Standby, Saver On)
200 A (Auto Power Off)
1.3 A (1.5 W Tx , 144 MHz) 3.7 V DC
1.8 A (3 W Tx , 144 MHz) 6.0 V DC
1.2 A (1 W Tx , 430 MHz) 3.7 V DC
1.5 A (2 W Tx , 430 MHz) 6.0 V DC
Operating Temperature: 4 F to +140 F (20 C to +60 C)
Case Size (W x H x D): 1.9 x 3.2 x 0.9 inch (47 x 81 x 23 mm) (W/O knob & antenna)
Weight: 4.6 oz (132 g) With FNB-82LI & antenna
Transmitter
RF Power Output: 1.5 W (@ 3.7 V FNB-82LI 144 MHz)
3 W (@ 6.0 V EXT DC IN 144 MHz)
1 W (@ 3.7 V FNB-82LI 430 MHz)
2 W (@ 6.0 V EXT DC IN 430 MHz)
Modulation Type: Variable Reactance F2 , F3
Maximum Deviation: 5 kHz (F2, F3)
Spurious Emission: At least 60 dB below (HIGH)
At least 50 dB below (LOW)
Microphone Impedance: 2 kW
Specifications
Receiver
Circuit Type: AM, NFM: Double-Conversion Superheterodyne
WFM: Triple-Conversion Superheterodyne
Intermediate Frequencies: 1st 2nd 3rd
AM, NFM 47.25MHz 450 kHz
WFM 45.8 MHz 10.7 MHz 1 MHz
Sensitivity: 3 V for 10 dB SN (0.5-30 MHz, AM)
0.35 V TYP for 12 dB SINAD (30-54 MHz, NFM)
1 V TYP for 12 dB SINAD (54-76 MHz, NFM)
1.5 V TYP for 12 dB SINAD (76-108 MHz, WFM)
1.5 V TYP for 10 dB SN (108-137 MHz, AM)
0.2 V for 12 dB SINAD (137-140 MHz, NFM)
0.16 V for 12 dB SINAD (140-150 MHz, NFM)
0.2 V for 12 dB SINAD (150-174 MHz, NFM)
1 V TYP for 12 dB SINAD (174-222 MHz, WFM)
0.5 V for 12 dB SINAD (300-350 MHz, NFM)
0.2 V for 12 dB SINAD (350-400 MHz, NFM)
0.18 V for 12 dB SINAD (400-470 MHz, NFM)
1.5 V for 12 dB SINAD (470-540 MHz, WFM)
3 V TYP for 12 dB SINAD (540-800 MHz, WFM)
1.5 V TYP for 12 dB SINAD (800 -999 MHz, NFM)
USA Version Cellular Blocked
Selectivity: NFM, AM: 12 kHz/35 kHz (6 dB/60 dB)
WFM: 200 kHz/300 kHz (6 dB/20 dB)
AF Output: 50 mW @ 8 W for 10 % THD (@ 3.7 V)
100 mW @ 8 W for 10 % THD (@ 6.0 V)
Specifications are subject to change without notice, and are guaranteed within the 144 and 430 MHz amateur bands only.
Frequency ranges will vary according to transceiver version; check with your dealer.
Exploded View & Miscellaneous Parts
RA0111400
RING NUT
VXSTD P/N
U07125302
U07180306
U07240302
U44110002
U9900044
U9900068
U9900153
U9900154
U9900156
DESCRIPTION
PAN HEAD SCREW M1.7X2.5NI#3
PAN HEAD SCREW M1.7X8AU#3
PAN HEAD SCREW M2X4NI#3
TAPTITE SCREW M2X15NI
TAPTITE SCREW 1.7X5NI#3 GUIDE
TAPTITE SCREW M2X4NI#3
SPECIAL SCREW M1.7X4SUS
SPECIAL SCREW M3X4SUS
PAN HEAD SCREW M2X11NI#3
RA0023500
RING NUT (SMA)RA0503100
RUBBER CAP (SP)
RA0504400
ENCODER KNOB
RA0504000
FRAME (LCD)
RA0503500
LIGHT GUIDE (LCD)
G6090152
RA050410A
INTER CONNECTOR
RA0514400
HOLDER ASSY
RA0503200
RUBBER CAP (DC)
RA0503800
CP7639001
CHASSIS ASSY
RA0512100
BATTERY COVER ASSY
FILTER UNIT
MAIN UNIT
SW UNIT
RA0503000
RUBBER KNOB (KEY)
RA0503600
LATCH NAIL
RA0503300
RUBBER KNOB (PTT)
M3290039
MICROPHONE ELEMENT
RA0511800
SPONGE RUBBER
RA0504700
MASK SHEET
RA0518000
CASE ASSY
INCLUDE
RUBBER KNOB (PTT)
LATCH NAIL ( )
RA0034400
LCD SHEET
RA0504300
VOLUME KNOB


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