Geräte Informationen:

Icom IC-4GA Transceiver
Hersteller:
Icom
Modell: IC-4GA
Datum: 1988
Kategorie: Funk und Kommunikation
Gruppe: Transceiver
Beschreibung: UHF FM TRANSCEIVER
Informationen:
                                    

Folgende Anleitungen sind hier verfügbar:

Icom -- IC-4GA -- Serviceanleitung
Dateiname: Icom-7454-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 58
Dateigröße: 14.30 Mbytes (14993116 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: A-5002-S
Datum: 1988
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: ca649b8e99f1afecfd6937e4d624e9ba
Downloads: 67 seit dem 06 Januar 2016
Informationen:
This service manual contains information relative to the
theoretical, physical, mechanical and electrical
characteristics of the IC-4GA/GAT/ GE UHF FM TRANSCEIVER

SECTION 1
SPECIFICATIONS............................................................................................................
1-1
SECTION 2 OUTSIDE AND INSIDE VIEWS
...................................................................................
2-1-4
2-1 FRONT AND SIDE PANELS
........................................................................................
2-1
2-2 TOP PANEL
................................................................................................................
2-2
2-3 FUNCTION
DISPLAY..................................................................................................
2-2
2-4 MAIN
UNIT.................................................................................................................
2-3
2-5 RF UNIT
.....................................................................................................................
2-4
2-6 SPEAKER AND DTMF
UNITS......................................................................................
2-4
SECTION 3 BLOCK
DIAGRAM............................................................................................................
3-1
SECTION 4 CIRCUIT
DESCRIPTION..............................................................................................
4-1-7
4-1 RECEIVER CIRCUITS
..................................................................................................
4-1
4-2 TRANSMITTER
CIRCUITS..........................................................................................
4-2
4-3 PLL CIRCUITS
............................................................................................................
4-3
4-4 POWER SUPPLY CIRCUITS
.......................................................................................
4-4
4-5 OTHER CIRCUITS
.......................................................................................................
4-4
4-6 CPU (IC501) PORTALLOCATION
..............................................................................
4-6
4-7 MATRICES
.................................................................................................................
4-7
SECTION 5 MECHANICAL PARTS AND DISASSEMBLY
..............................................................
5-1-2
SECTION 6 ADJUSTMENT
PROCEDURES...................................................................................
6-1-4
6-1 PLL
ADJUSTMENT.....................................................................................................
6-1
6-2 RECEIVER
ADJUSTMENT..........................................................................................
6-2
6-3 TRANSMITTER
ADJUSTMENT..................................................................................
6-3
SECTION 7 BOARD LAYOUTS
......................................................................................................
7-1-9
7-1 INTERCONNECTION
..................................................................................................
7-1
7-2 LOGIC-A UNIT
...........................................................................................................
7-2
7-3 LOGIC-B
UNIT............................................................................................................
7-3
7-4 RF UNIT
.....................................................................................................................
7-4
7-5 MAIN
UNIT.................................................................................................................
7-6
7-6 OTHER
UNITS............................................................................................................
7-8
SECTION 8 VOLTAGE
DIAGRAM..................................................................................................
8-1-3
8-1 LOGIC UNIT
...............................................................................................................
8-1
8-2 RF UNIT
.....................................................................................................................
8-2
8-3 MAIN
UNIT.................................................................................................................
8-3
SECTION 9 PARTS
LIST................................................................................................................
9-1-5
Icom-7454-Manual-Page-1-Picture
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