Table Of Contents - Icom IC-706MKIIG Service Manual

Table of Contents

Ordering Parts2
Repair Notes2
Table Of Contents3
Specifications4
Inside Views5
Main And Filter Boards5
Circuit Description6
Receiver Circuits6
Hf/50 Mhz Rf Circuit6
Vhf And Uhf Rf Circuits6
Preamplifier Circuit7
1St Mixer Circuit7
1St If Circuit7
2Nd Mixer Circuit7
If Shift Circuit8
S-Meter Circuit8
Squelch Circuit8
Demodulator Circuits8
Af Selector Switch (Main Board)9
Af Amplifier Circuit9
Microphone Amplifier Circuit9
Vox Circuit (Main Board)9
Transmitter Circuits9
Fm Modulation Circuit10
Transmitter If Circuit10
Rf Circuit10
Alc Circuit10
Pll Circuits11
Apc Circuit11
Rf, Alc, Swr Meter Circuits11
Main Loop Pll11
2Nd Lo And Reference Oscillator Circuits12
Bfo Circuit12
Logic Circuits13
Band Selection Data13
Sub Cpu Port Allocations13
I/O Expander Port Allocations13
Main Cpu Port Allocations14
Adjustment Procedures15
Preparation Before Sarvicing15
Required Test Equipment15
Connections15
Pll Adjustments16
Transmitter Adjustments16
Pll And Pa Units17
Main Unit17
Pa Unit21
Main And Filter Units21
Receiver Adjustments22
Set Mode Adjustment24
Parts List26
Display Board26
Front Unit26
Main Board28
Pll Unit37
Filter Board45
Driver Board47
Mechanical Parts And Disassembly48
Semi-Conductor Information52
Transistor and Fet's52
Diodes52
Board Layout53
Display Board (Top View)53
Display Board (Bottom View)54
Main Board (Bottom View)56
Hpf And Driver Boards57
Hpf Board (Top View)57
Driver Board (Top View)57
Hpf Board (Bottom View)58
Driver Board (Bottom View)58
Pa Unit (Top View)59
Pa Unit (Bottom View)60
Pll Unit (Top View)61
Pll Unit (Bottom View)62
Filter Unit63
Filter Unit (Top View)63
Filter Board (Bottom View)64
Block Diagram65
Voltage Diagram66