Table Of Contents - Icom IC-451A Instruction Manual

Table of Contents

Table Of Contents2
Specifications3
Description5
Multi-Purpose Scanning5
Dual Vfo's5
Continuous Tuning System5
Installation6
Unpacking6
Recommendations For Installation6
Power Supply6
Antenna7
For Dc Operation7
External Speaker7
Headphones8
Microphone8
Cw Key8
Ground8
Control Functions9
Front Panel9
Rf Power Control9
Power Switch9
Af Gain Control10
Rf Gain Control And Agc Switch10
Mode Select Switch10
Vfo/Memory Switch10
Rit Control11
Rit Switch11
Noise Blanker Switch11
Tuning Speed Switch11
Transmit/Receive Switch12
Vox Switch12
Dial Lock Switch12
Tuning Control Knob12
Rear Panel13
Multi-Function Meter13
Transmit Indicator Led13
Receive Indicator Led13
Dc Power Socket14
External Speaker Jack14
Scope Terminal14
Spare Terminal14
Memory Switch15
Fuse Holder15
Key Jack15
Ground Terminal15
Preamp Power Switch16
Cw Moni Control16
Vox Gain Control16
Anti Vox Control16
Operation17
How To Tune17
Preset Frequencies17
Frequency Display On Each Mode17
Brake Adjustment18
Vfo Select Switch19
Rit21
Memory Channel Operation22
Memory-Write22
Memory Reading22
Scanning Opreation22
Memory Scan23
Programmed Scan23
Scanning In The Fm Mode25
How To Modify To Stop On 5Khz Steps Frequency25
Ssb Operation26
Noise Blanker26
Agc26
Transmitting27
How To Use The Vox Circuit27
Cw Operation27
Cw Monitor28
Semi-Break-In Operation28
Fm Operation28
Repeater Operation29
Other Operations30
Frequency Chart30
Inside View31
Main Pc Board Side31
Pll Unit Side32
Troubleshooting33
Block Diagram36
Options37
Power Supply Unit Block Diagram37
Caution39