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Yaesu FT-980 Transceiver
Hersteller:
Yaesu
Modell: FT-980
Datum:
Kategorie: Funk und Kommunikation
Gruppe: Transceiver
Beschreibung:
Informationen:
                                    

Folgende Anleitungen sind für obiges Gerät verfügbar:

Yaesu -- FT-980 -- Serviceanleitung
Dateiname: Yaesu-6238-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 203
Dateigröße: 35.23 Mbytes (36936976 Bytes)
Sprache: Englisch
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Downloads: 257 seit 27 Juli 2014
Informationen:
ERRATA FOR THE FT-980 OPERATING MANUAL ................. 2

SOLDERING AND DESOLDERING TECHNIQUE.................... 4

GENERAL PERFORMANCE IMPROVEMENT MODIFICATIONS........ 7

CAT SYSTEM SERIAL I/O DATA MANUAL .......................13

UNIT LOCATIONS .............................................18

SERVICE AND ALIGNMENT.....................................20

COMPONENT APPLICATIONS....................................32

FREQUENCY RELATIONSHIPS ..................................49

SIGNAL PATHS................................................50

CPU BOARD BLOCK DIAGRAM..................................54

CONNECTION DIAGRAM .......................................55

PARTS LAYOUTS, SCHEMATICS, SIGNAL LEVELS AND VOLTAGE CHARTS

RF UNIT .................................................56

IF UNIT .................................................60

AF UNIT.................................................63

VFO UNIT................................................66

PLL AND VCO UNITS......................................69

CPU UNIT ................................................74

FSK UNIT ................................................77

LPF AND RELAY UNITS ...................................79

PROTECTOR UNIT.........................................80

DIAL UNIT ...............................................81

REG UNIT................................................83

CONTROL UNIT...........................................85

KEY MATRIX UNIT........................................86

DISPLAY UNITS (A, B and C) ...............................87

MONITOR UNIT...........................................90

100W PA UNIT............................................91

10W PA UNIT.............................................92

I00W PS UNIT ............................................93

J 0W PS UNIT .............................................94

PI UNIT..................................................95

MISCELLANEOUS UNITS ...................................96

FIF-80 INTERFACE UNIT...................................97

FRONT PANEL EXPLODED VIEW................................98

REAR PANEL EXPLODED VIEWS................................99

PARTS LIST..................................................100


This manual is intended to serve as a technical supplement
to the FT-980 Operating Manual. Detailed information
regarding functions, installation, interconnections,
operation, and installation of options has been provided in
the Operating Manual, and is not reprinted herein.
Therefore, this Technical Supplement is not intended to
serve as an independent reference, but to be used in
conjunction with the information provided in the Operating
Manual.

Because there are nearly eight hundred semiconductor devices
in the FT-980, circuit description information is provided
in the form of numerous block diagrams and a complete
Component Applications list. It is our hope that this manner
of providing functional information will prove to be more
convenient for the owner and technician than would a lengthy
verbal description. Those readers who are not familiar with
the basic types of analog and digital circuits that serve as
the building blocks of the FT-980 are encouraged to study
instructional material, such as that contained in handbooks
on amateur radio and digital circuit design, before
attempting to understand the design of the FT-980. Each
block in the block diagrams represents one such basic
circuit, while the Component Applications list provides
additional details for each semiconductor. Specific circuit
details are provided in the schematic diagrams.
Yaesu-6238-Manual-Page-1-Picture
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