Yaesu FT-707 FT707 Transceiver
FP-707 FP707 Power Supply
FC-707 FC707 Aerial Antenna Tuner


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FT707 Service Manual
including circuits for the
FP707 & FC707 Details Below
On Paper CD or Download
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Yaesu FT-707 FT707 Transceiver Transmitter and Receiver.

Yaesu FP-707 FP707 Power Supply.
 
Yaesu FC-707 FC707 Aerial Antenna Tuner.


The Yaesu FT-707 is an all solid state transceiver for the HF amateur bands.

Featuring coverage of 80 through 10 meters, the FT-707 is designed for operation on SSB. CW and AM.

Nominal power output is 100 watts on SSB and CW. and 50 watts on AM.

The extremely compact size of the FT-707 makes this model particularly well suited for mobile or vacation use.

The receiver section includes a Schottky barrier diode ring module for excellent performance in the presence of strong signals.

A very-low-noise premix local oscillator circuit is used, which further contributes to optimum receiver performance.

Also included in the receiver is variable IF bandwidth, using two 8 pole IF filters, allowing continuously variable adjustment of the IF bandwidth, from 300 Hz to 2.4 kHz.

Six pole filters of 600 Hz and 350 Hz bandwidth ( - 6 dB) are available for contest and DX operators, with selection of the SSB filter or CW filter available on the CW mode.

The transmitter side features two rugged bipolar transistors with multiple protection in the final amplifier stage, with band switched low pass filter networks.

Digital plus analog display of the operating frequency is provided.
The front panel meter consists of a string of bright discrete LEDs, for monitoring of the received signal strength, relative power output. and the transmit ALC level.

Available options for the FT-707 include the FP-707 AC Power Supply, which provides the 13.3 volts DC required by the FT-707.

The  FV-707DM external VFO, which provides twelve memory channels using a synthesizer which allows scanning in 10 Hz steps.

The aerial tuner unit FC-707 Antenna Coupler.
Mounting bracket for mobile use.

FT707 1.jpg (13384 bytes)

FT707 2.jpg (33739 bytes)


The Information Consists of  the Following :-

The Maintenance Manual contains all circuits and printed board layouts for the FT-707 FT707 Transceiver.
Circuit diagrams for the FP-707 FP707 Power Supply.
The FC-707 FC707 Aerial Tuner Unit Instruction Manual with Circuit and Layout. 


Yaesu FT-707 FT707 Transceiver 
Yaesu FC-707 FC707 Aerial tuner unit 
Yaesu FP-707 FP707 Power Supply


SECTION 1 — GENERAL
GENERAL DESCRIPTION 
SPECIFICATIONS 
SEMICONDUCTORS 
FRONT PANEL CONTROLS AND SWITCHES 

POWER SUPPLY FP-707 
INTERCONNECTIONS 
RELAY BOX FRB-707 
ANTENNA TUNER FC-707 
OPERATION 

SECTION 2 — TECHNICAL NOTES
SIGNAL TRACING IN THE FT-707 
RX FREQUENCY RELATIONSHIPS 
CRYSTAL DATA 
TX CONTROL LINE CIRCUIT 
CIRCUIT DESCRIPTION 

SECTION 3 — SERVICING
OUTER COVER REMOVAL 
FRONT PANEL REMOVAL 
REAR PANEL REMOVAL 
100W PA UNIT REMOVAL 
MAIN CHASSIS EXPLODED VIEW 
BOARD LAYOUT 
SOLDERING AND DE-SOLDERING TECHNIQUE 
CIRCUIT TRACING REPAIR 
INSTALLATION: OPTIONS
CW FILTER INSTALLATION FIX (CRYSTAL CONTROLLED) OPERATION 

MODIFICATIONS
S/N IMPROVEMENT ON 80M BAND 
MODIFICATION TO ELIMINATE “CLICKING” NOISE ON CW
TX IMD DISTORTION IMPROVEMENT 
MARKER MODIFICATION 
PREMIX MODIFICATION 
RECEIVER INPUT CIRCUIT MODIFICATION 
WARC TX MODIFICATION 
FREQUENCY COUNTER PRESET CHANGE 
MAINTENANCE AND ALIGNMENT 
FAULT IDENTIFICATION AND LOCALIZATION 
TROUBLESHOOTING 
RELAY CONNECTION INFORMATION
CIRCUIT BOARD LAYOUT AND TEST VOLTAGE
RF UNIT (PB-2093A/PB-2201) 
IF UNIT (PB-2094A) 
AF UNIT (PB-2095A) 
AVR UNIT (PB-2099A) 
COUNTER/DISPLAY UNIT (PB-2086A-3540/PB-2098-3540)
VFO ASSEMBLY (PB-2097A) 
100W PA UNIT (PB-2013) 
HPF/FAN MOTOR CONTROL UNIT (PB-2101) 
LEVEL METER UNIT (PB-2100) 
SW UNIT (PB-2102) 
VR UNIT (PB-2103A) 
SWITCH ASSEMBLIES 
POTENTIOMETER ASSEMBLIES 

SECTION 4 — REPAIR PARTS
PARTS LIST AND ORDERING FORMS 
PARTS LIST

FT707 Service Manual
including circuits for the
FP707 & FC707 Details Below
On Paper CD or Download

Click Here

FT707 4.jpg (9968 bytes)

FT707 3.jpg (68645 bytes)


This Service Manual Contains 154 pages covering the : -
FT-707 FT707 FP-707 FP707 & FC-707FC707
Manuals are Available Worldwide as a Download on CD or Paper Copy.

FT-707 FT707 Transceiver full Maintenance manual including all circuits and printed board layouts.
FP-707 FP707 Power Supply circuit diagram only.
FC-707 FC707 Aerial Tuner Unit Instruction Manual with circuit diagram and layout.
 
All three included in one package, or to purchase the Aerial Tuner and Power Supply Information separately Click Here

Manual 154 A4 pages worldwide

Printed Paper Copy or on CD are Plus Postage.

( For all Payment Options plus UK and Overseas Postage )
( Please Click the Payment Links Below )

We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or as a Download

Thank you for your interest. Allen and Alanna G0RIT
Should you wish to purchase

 
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Revised: January 20, 2016