Equipment information:

Icom IC-24 AT Transceiver
Manufacturer:
Icom
Model: IC-24 AT
Date: 1990
Category: Radio, Communication
Group: Transceiver
Description: DUAL BAND FM TRANSCEIVER
Information:
                                    

These manuals are available for the above equipment:

Icom -- IC-24 AT -- Service Manual
File name: Icom-7450-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 51
Size: 13.86 Mbytes (14528196 Bytes)
Language: english
Revision:
Manual-ID/Number: A-5082Y-S
Date: 1990
Quality: Scanned document, all readable.
Upload date:
MD5: 926a6823cd6352b9b5f91aa59235abd7
ed2kID: b9e405d82770c00a140523326c424547
Downloads: 40 since 06 January 2016
Information:
This service manual describes the latest service information
for the IC-24AT/ET DUAL BAND FM TRANSCEIVER at the time of
publication.

SECTION 1 SPECIFICATIONS
.........................................................................1-1
SECTION 2 INSIDE VIEWS
...............................................................................2-1
SECTION 3 CIRCUIT DESCRIPTION
..........................................................3-1-6
3-1 VHF RECEIVER CIRCUITS
....................................................................................
3-1
3-2 UHF RECEIVER CIRCUITS
....................................................................................
3-2
3-3 VHF TRANSMITTER CIRCUITS
..............................................................................3-2
3-4 UHF TRANSMITTER CIRCUITS
..............................................................................
3-3
3-5 PLL CIRCUITS
.........................................................................................................3-3
3-6 LOGIC CIRCUITS
....................................................................................................3-4
3-7 POWER SUPPLY CIRCUITS
.................................................................................
3-6
SECTION 4 MECHANICAL PARTS AND DISASSEMBLY
....................4-1-2
4-1 FRONT PANEL
........................................................................................................4-1
4-2 REAR PANEL
............................................................................................................4-2
4-3 ACCESSORIES
....................................................................................................4-2
SECTION 5 PARTS LIST
...............................................................................5-1-9
SECTION 6 ADJUSTMENT PROCEDURES
...............................................6-1-5
6-1 PREPARATION BEFORE SERVICING
.....................................................................6-1
6-2 PLL ADJUSTMENT
..................................................................................................6-2
6-3 RECEIVER ADJUSTMENT
......................................................................................6-2
6-4 TRANSMITTER ADJUSTMENT
.............................................................................6-4
SECTION 7 BOARD LAYOUTS
...................................................................7-1-13
7-1 KEYBOARD AND PTT UNIT
..................................................................................
7-1
7-2 LOGIC UNIT
.............................................................................................................7-2
7-3 INITIAL MATRICES
.................................................................................................
7-4
7-4 ADENCA UNIT
.........................................................................................................7-4
7-5 VR, UHF SW AND PRT UNITS
................................................................................7-5
7-6 MAIN UNIT
..............................................................................................................
7-6
7-7 AF, MIC AND REG UNITS
.....................................................................................
7-8
7-8 APC AND IO UNITS
...............................................................................................
7-9
7-9 DET AND UHF YGR UNITS
...................................................................................7-10
7-10 VHF RF, VHF COL, UHF RF AND UHF COL UNITS
...............................................7-11
7-11 VHF PLL, UHF PLL AND UHF VCO UNITS
............................................................7-12
7-12 LPF AND HPF UNITS
............................................................................................7-13
SECTION 8 BLOCK DIAGRAM
.........................................................................8-1
SECTION
9 VOLTAGE DIAGRAM
9-1-2
Icom-7450-Manual-Page-1-Picture
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