Geräte Informationen:

Icom IC-449A Transceiver
Hersteller:
Icom
Modell: IC-449A
Datum: 1991
Kategorie: Funk und Kommunikation
Gruppe: Transceiver
Beschreibung: 430 MHz FM TRANSCEIVER
Informationen:
                                    

Folgende Anleitungen sind für obiges Gerät verfügbar:

Icom -- IC-449A -- Serviceanleitung
Dateiname: Icom-7452-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 47
Dateigröße: 16.44 Mbytes (17233643 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer:
Datum: 1991
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: 8ab7cc17f37476e6b49a4a9689a75a08
ed2kID: 131dadd9e36a272de325e79f8edb6fc7
Downloads: 44 seit 06 Januar 2016
Informationen:
This service manual describes the latest information for the
following transceivers at the time of publication.

SECTION 1 SPECIFICATIONS
..........................................................................................................
1—1
SECTION 2 INSIDE
VIEWS.................................................................................................................
2—1
SECTION 3 CIRCUIT DESCRIPTION
............................................................................................3-1-5
3-1 RECEIVER CIRCUITS
...............................................................................................
3—1
3-2 TRANSMITTER CIRCUITS
........................................................................................
3—2
3-3 PLL
CIRCUITS.............................................................................................................
3—3
3-4 LOGIC CIRCUITS
......................................................................................................
3—3
3-5 OTHER CIRCUITS
......................................................................................................
3—5
SECTION 4 ADJUSTMENT PROCEDURES
.................................................................................4-1-4
4-1 PREPARATION BEFORE SERVICING
......................................................................
4—1
4-2 PLL
ADJUSTMENT......................................................................................................
4—2
4-3 RECEIVER ADJUSTMENT
........................................................................................
4—3
4-4 TRANSMITTER ADJUSTMENT
.................................................................................
4—3
SECTION 5 MECHANICAL PARTS AND DISASSEMBLY
...........................................................5-1-2
5-1 TRANSCEIVER
..........................................................................................................
5—1
5-2 ACCESSORIES
..........................................................................................................
5—1
SECTION 6 CONNECTOR ASSEMBLY
............................................................................................
6—1
SECTION 7 PARTS
LIST.................................................................................................................7-1-7
SECTION 8 BOARD
LAYOUTS.......................................................................................................8-1-7
8-1 LOGIC
UNIT.................................................................................................................
8—1
8-2 MAIN UNIT
.................................................................................................................
8—2
8-3 PLL-A UNIT
.................................................................................................................
8—4
8-4 IF UNIT
.........................................................................................................................
8—4
8-5 APC
UNIT.....................................................................................................................
8—4
8-6 VCO
UNIT.....................................................................................................................
8—5
8-7 MIC-AMP
UNIT..............................................................................................................
8—5
8-8 YGR
UNIT.....................................................................................................................
8—6
8-9 A-BANDUNIT
..............................................................................................................
8—6
8-10 UT-51 TONE ENCODER UNIT
.....................................................................................
8—7
SECTION 9 OPTION UNITS
..........................................................................................................9-1-2
9-1 UT-50 TONE SQUELCH UNIT
.....................................................................................
9—1
9-2 UT-55 DTMF ENCODER/DECODER
UNIT...................................................................
9—2
SECTION 10 VOLTAGE
DIAGRAM.......................................................................................................10—1
SECTION 11 BLOCK DIAGRAM
..........................................................................................................11—1
Icom-7452-Manual-Page-1-Picture
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