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IC-728
Service manual
Icom IC-728 Service Manual
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:
Instruction manual
(56 pages)
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Contents
Table of Contents
Bookmarks
Table of Contents
Introduction
Ordering Parts
Repair Notes
Table of Contents
Specifications
Block Diagram
Inside Views
Main Unit
PLL Unit
PA and Filter Units
Circuit Description
Receiver Circuits
RF Switching Circuit
Preamplifier Circuit
1St if Circuit
2Nd Mixer Circuit
2Nd if Circuit
Noise Blanker Circuit
3Rd Mixer and 3Rd if Circuits
PBT Circuit
BFO Circuit
SSB/CW Demodulator Circuits
AM Demodulator Circuits
AF Input Mode Selector Switch
AGC Circuit
S-Meter Circuit
Squelch Circuit
Transmitter Circuits
MIC Amplifier Circuit
AF Amplifier Circuit
CW Keying Circuit
RF Circuit
IF Amplifier
RF Filter Circuit
ALC Circuit
APC Circuit
Temperature Protection Circuit
PLL Circuits
1St lo Pll Circuit
Frequency Construction
Main Loop Circuit
Logic Circuits
Band Selection Data
Sub Loop Circuit
Regular Circuits
Cpu
Parallel/Serial Converter
Mechanical Parts and Disassembly
Chassis Parts
PA Parts and Accessories
Accessories
Parts List
AF Unit
VR Unit
Jack Unit
Front Unit
Adjustment Procedures
Preparation before Servicing
Required Test Equipment
Connection
PLL Adjustment
PLL and DDS Units
Receiver Adjustment
Board Layouts
Voltage Diagram
Front and Main Units
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Instruction Manual
Table of
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