Garmin GMA 240 INSTALLATION OVERVIEW 2.1Introduction, 2.2Installation Materials, Item, Garmin P/N

2 INSTALLATION OVERVIEW

2.1Introduction

This section provides the necessary information for the installation and checkout of the GMA 240 Audio Panel. Installation of the GMA 240 will differ according to equipment location and other factors. Cabling will be fabricated by the installing agency to fit these various requirements. The appendices contain interconnect wiring diagrams, mounting dimensions, and information pertaining to installation.

2.2Installation Materials

2.2.1Equipment Available

GMA 240 Audio Panel, Ship Level Assembly, P/N 010-00735-() includes the following, depending on part number:

Item	Garmin P/N
Connector Kit, GMA 340	011-00652-00
Rack Backplate, GMA 340	011-00678-00
Unit Assembly, GMA 240	011-01988-00
Audio Cables, 2.5 mm RA Stereo Plug	011-02079-00
Install Rack, GMA 340	115-00262-00

2.2.2Additional Equipment Required

•Cables: The installer will fabricate and supply all system cables. Interconnect wiring diagrams are detailed in Appendix B.

•Hardware: #6-32 100° flat head screw (6 ea.) and #6-32 self-locking nut (6 ea.). Hardware required to mount the installation rack is not provided.

•Stereo headphone jacks (up to 4), microphone jacks (up to 4), 3.5mm stereo jacks (up to 2). Insulating type jacks or insulating washers should be used for all jacks to isolate them from aircraft chassis.

2.3GMA 240 Wiring, Configuration, and Adjustment Options

The GMA 240 has several configuration/adjustment options, consideration of these options should be discussed with the end user(s) of the aircraft before wiring begins. These configuration/adjustments are described in the following sections:

•Wiring options – Sections 2.3.1 and 4.4.1

•Internal configuration jumpers - Section 2.3.1

•Volume/Mute adjustments - Section 2.3.2

GMA 240 Installation Manual	Page 2-1
190-00917-01	Rev. A