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HF-150
Lowe Electronics HF-150 Receiver Manuals
Manuals and User Guides for Lowe Electronics HF-150 Receiver. We have
1
Lowe Electronics HF-150 Receiver manual available for free PDF download: Technical Manual
Lowe Electronics HF-150 Technical Manual (40 pages)
General coverage receiver
Brand:
Lowe Electronics
| Category:
Receiver
| Size: 10 MB
Table of Contents
Contents
2
Block Diagram
3
Circuit Description
4
RF and if Section
4
Aerial Input Circuits
6
1St Mixer and 1St if
6
2Nd Mixer and 2Nd if
6
Detectors and AGC System
6
AF Stages
7
Power Supply
7
PLL Section
8
Frequency Configuration
8
Carrier Generator
8
Heterodyne Oscillator
8
Local Oscillator
9
PLL System
9
Control Section
10
Microcontroller and Control Program
10
Controls
11
Frequency Memory
11
Display
12
Receiver Interface
12
External Keypad
14
Test Routines
15
Semiconductor Data
17
Test and Alignment
25
Control Unit Test
25
Microcontroller Function and Display Driver Test
25
Frequency Memory (EEPROM Chip, Q2) Test
25
Reference Oscillator Adjustment
26
Heterodyne Oscillator Adjustment
26
Local Oscillator Adjustment
26
IF Alignment
27
Local Oscillator Coil Adjustment
27
Input Filter Alignment
28
Whip Amplifier Test
28
Disassembly
29
Parts List
29
Receiver Specification
32
Schematic Diagrams
34
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