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Make/Model Information:

  • Brand:   Yaesu
  • Models included:
    • Yaesu FT-8900R

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   58
  • File size:  ∼ 4.50 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ROYA-0011

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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Quad Band FM Transceiver
FT-8900R
Technical Supplement
Introduction
This manual provides technical information necessary for servicing the FT-8900R 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 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 (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.
Specifications
Exploded View & Miscellaneous Parts
Connection Diagram
Circuit Description
Alignment
Contents
Board Unit (Schematics, Layouts & Parts)
Main Unit
Panel Unit
Panel-Sub Unit
VR-L Unit
VR-R Unit
2002 VERTEX STANDARD CO., LTD. (EH008M90A)
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
SQL SQL VOL VOL
LOW V/M HM SCN V/M HM SCN
Specifications
GENERAL
Frequency Range: RX: 28.000 - 29.700 MHz, 50.000 - 54.000 MHz,
108.000 - 180.000 MHz, 320.000 - 480.000 MHz,
700 - 985 MHz (Cellular Blocked)
TX: 28.000 - 29.700 MHz, 50.000 - 54.000 MHz,
144.000 - 146.000 MHz (or 144.000 - 148.000 MHz),
430.000 - 440.000 MHz (or 430.00 - 450.000 MHz)
Channel Steps: 5/10/12.5/15/20/25/50 kHz
Modes of Emission: F3, F2, F1
Antenna Impedance: 50-Ohms, unbalanced (Antenna Duplexer built-in)
Frequency Stability: 5 ppm @ 14 F ~ +140 F (10 C ~ +60 C)
Operating Temperature Range: 4 F ~ +140 F (20 C ~ +60 C)
Supply Voltage: 13.8 VDC (15%), negative ground
Current Consumption (Approx.): RX: 0.5 A (Squelched)
TX: 8.0 A (50/430 MHz), 8.5 A (29/144 MHz)
Case Size (W x H x D): 5.5” x 1.6” x 6.6” (140 x 41.5 x 168 mm) (w/o knobs & connectors)
Weight (Approx.): 2.2 lb (1 kg)
TRANSMITTER
Output Power: 50/20/10/5 W (29/50/144 MHz),
35/20/10/5 W (430 MHz)
Modulation Type: Variable Reactance
Maximum Deviation: 5 kHz (50/144/430 MHz),
2.5 kHz (29 MHz)
Spurious Radiation: Better than 60 dB (29 MHz: Better than 50 dB)
Modulation Distortion: Less than 3%
Microphone Impedance: 2 kW
DATA Jack Impedance: 10 kW
RECEIVER
Circuit Type: Double-conversion superheterodyne
Intermediate Frequencies: 45.05 MHz/450 kHz (Left band),
47.25 MHz/450 kHz (Right band)
Sensitivity (for 12dB SINAD): Better than 0.2 V
Squelch Sensitivity: Better than 0.16 V
Selectivity (6dB/60dB): 8 kHz/30 kHz (50/144/430 MHz),
6 kHz/30 kHz (29 MHz)
Maximum AF Output: 2 W @ 8 W for 5% THD
AF Output Impedance: 4-16 W
Specifications are subject to change without notice, and are guaranteed within the 29, 50, 144, and 430 MHz amateur bands only.
Frequency ranges will vary according to transceiver version; check with your dealer.
Exploded View & Miscellaneous Parts
RA0396700
LIGHT GUIDE
RA0396800
LCD HOLDER
RA0396900 (x2 pcs)
INTER CONNECTOR
RA0397100
REFLECTOR SHEET
RA0397000
DIFFUSER SHEET
M2090034A
M4090149
SPEAKER
RA0404400 (x2 pcs)
RA0404300 (x2 pcs)
RA0404200 (x2 pcs)
ENCODER KNOB
R6054387B (x2 pcs)
SPECIAL NUT
RA040470A
FRONT PANEL ASSY
RA0407200
SPACER
T9207010A
WIRE ASSY
RA040710A
LIGHT SHEET
T9206438A
WIRE ASSY
R0150630
HOLDER
RA02132A0
HIMERON TAPE
CS1770001
CASE (W/O NYLON NET)
T9206228
WIRE ASSY
RA040480A
SUB PANEL ASSY
(W/ COIL SPRING, RELEASE KNOB)
T9101509
CT CABLE
S5000206
FAN GUARD
P1090984
CONNECTOR
RA0446200 (x2 pcs)
LEAF SPRING
RA0396100
REAR PANEL
RA02668AA
CHASSIS
RA0441300
RA0438700
RUBBER
G6090147A
VR-L Unit
VR-R UNIT
PANEL Unit
PANEL-SUB UNIT
MAIN UNIT
RA0415200 (x2 pcs)
GROUND PLATE
R0137550
COIL SPRING
RA026900A
RELEASE KNOB
No. VXSTD P/N DESCRIPTION QTY.
U23116007 TAPTITE SCREW M2X16B 4
? U31206007 OVAL HEAD SCREW M2.6X6B 14
? U44308002 TAPTITE SCREW M3X8NI 17
? U03310002 SEMS SCREW ASM3X10NI 4
? U20308002 BINDING HEAD SCREW M3X8NI 2
? U20318007 BINDING HEAD SCREW M3X18B 4
Non-designated parts are available only
as part of a designated assembly.


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