Heathkit HR-1680 Manuals

Manuals and User Guides for Heathkit HR-1680. We have 1 Heathkit HR-1680 manual available for free PDF download: Manual

Heathkit HR-1680 Manual

Heathkit HR-1680 Manual (104 pages)

SSB/CW RECEIVER

Brand: Heathkit | Category: Receiver | Size: 4.99 MB

Table of Contents

Table of Contents
3
VFO Circuit Board
6
HFO/XTAL Calibrator Circuit Board
7
Front End Circuit Board
10
AUD/REG Circuit Board
12
Chassis 0
13
Assembly Notes
15
Circuit Board Assembly
17
- VFO Circuit Board
  18
- HFO/XTAL Calibrator Circuit Board
  23
- Front End Circuit Board
  28
- AUD/REG Circuit Board
  34
Chassis Assembly
43
Initial Tests
67
- Resistance Checks
  67
- Voltage Checks
  70
- Sound Check
  71
Alignment 0.0.0
72
Cabinet Assembly 20
79
Operation 2
82
- Typical Operating Characteristics
  83
In Case of Difficulty
84
- Visual Checks
  84
- Precautions for Troubleshooting
  85
- Checking Transistors and Diodes
  85
- Troubleshooting Charts
  88
Circuit Description
91
- Front End Circuit Board
  91
- AUD/REG Circuit Board
  92
- VFO Circuit Board
  95
- HFO/XTAL Calibrator Circuit Board
  96
- Integrated Circuits
  101

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