Garmin GMA 340H Manuals

Manuals and User Guides for Garmin GMA 340H. We have 2 Garmin GMA 340H manuals available for free PDF download: Maintenance Manual, Installation Manual

Garmin GMA 340H Maintenance Manual

Garmin GMA 340H Maintenance Manual (51 pages)

AUDIO PANEL

Brand: Garmin | Category: Stereo System | Size: 1.99 MB

Table of Contents

Table of Contents
3
Introduction
7
Description and Operation
7
General Description
7
Theory of Operation
8
- Gma 340 Test Panel
  9
- Special Test Equipment
  9
Introduction
9
Gma 340 Rear Connectors
9
- Test Panel Parts List
  10
- Typical Test Panel Layout
  11
- Test Points
  11
- Construction Notes
  12
- Test Harness, J1 and 52 Pin Assignments
  12
- Test Panel Schematic Diagram (Sheet 2)
  15
- Audio Coax Cable Assembly
  18
- Troubleshooting
  19
- Front Panel Rear View, Connector J1 and 52 Location
  20
- Front Panel Connector Detail (Dual ADF in Parentheses)
  20
- Main Board Connector Detail
  21
- Main Board Component Location
  21
- Power Input Board Connector Detail
  22
- Power Input Board
  22
- Power on Check
  23
- 28V Lighting
  23
- 14V Lighting
  23
- Ptt Annunciator Check
  23
- Annunciator Failure
  24
- Front Panel Controls
  24
- Disassembling the Unit
  25
- Removing Top and Bottom Covers
  25
- Tools Required
  25
- Disassembly and Reassembly
  25
- Flexible Circuit Cable
  26
- Power-Input Board Assembly
  26
- Front Panel Assembly
  26
- Marker Beacon Lamp Rack Assembly
  26
- Installation Screw Shaft Assembly
  29
- Installing Top and Bottom Covers
  29
- Testing
  31
- General
  31
- Adjustment/Measurement Accuracy
  31
- Test Equipment Precautions
  31
- Test Equipment Setup
  32
- Bench Testing
  32
- Test Panel
  32
- Required Test Equipment
  32
- GMA 340 Test Connections
  33
- HP-8920B Default Settings
  34
- Test Panel Default Settings
  35
- Standard Test Signals
  35
- Input Voltages
  35
- Main Power
  35
- Microphone Input Signal
  36
- Marker Beacon Input Signal
  36
- Power off Check
  36
- Panel Lighting
  36
- Pilot Ptt Tests
  37
- 14 V Lighting
  37
- 28 V Lighting
  37
- Loaded Microphone Voltage Inputs
  37
- MASQ Inhibit
  39
- Audio Communication Check
  39
- Headset Outputs
  39
- Audio Gain
  39
- Speaker Outputs
  40
- Audio Frequency Response
  40
- Microphone Gain
  40
- Crew Microphone Frequency Response
  40
- Copilot Microphone
  41
- ICS Microphone Frequency Response
  41
- Pilot Microphone
  41
- Microphone Gain (ICS)
  41
- Microphone (PA) Gain
  42
- Squelch Characteristics
  42
- Auxiliary Entertainment (Music) Inputs
  42
- Music Frequency Response (Music 2 Not Available on 340 Dual ADP)
  43
- Music Mute Operation
  43
- Marker Beacon
  43
- Receiver Threshold
  43
- Airwayslnner Marker (3000 Hz)
  44
- Middle Marker (1300 Hz)
  44
- Outer Marker (400 Hz)
  44
- High Sensitivity Test
  44
- External Marker Lamp Outputs
  45
- Middle Marker Sense
  45
- Marker Mute
  45
- Isolation Mode Operational Checks
  45
- Replaceable Assemblies
  47
- List of Replaceable Parts
  47
- Assembly Drawings
  49
- GMA 340 Front Panel Assembly
  49
- Marker Lamp Rack Assembly, Front and Rear Detail
  49
- GMA 340 Final Assembly
  50

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Garmin GMA 340H Installation Manual

Garmin GMA 340H Installation Manual (43 pages)

Brand: Garmin | Category: GPS | Size: 0.71 MB

Table of Contents

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