Val Avionics Ltd
AP 100 Audio Panel
Installation and Operator’s Manual
2.3.2 Mounting Requirements
The AP 100 Mounting Tray (VPN 0511002) should be rigidly mounted in the avionics
stack using the hardware provided in the installation kit. Ensure that the mounting
location will provide easy access and a clear view of the equipment’s front panel from the
pilot’s position. Ensure that the mounting position will provide adequate clearance
between the unit and the associated wire harness and the aircraft controls. Bracing at the
rear of the unit should be installed to ensure rigidity in the panel. Consult FAA Advisory
Circular AC 43.13-2A for acceptable practices and techniques.
2.3.3 Wire Harness Fabrication
Val Avionics recommends that a factory fabricated wire harness (VPN 0751005) be used
for the installation of the AP 100 Audio Panel. Use of the factory fabricated wire harness
will ensure proper operation of the Audio Panel, reduction in the occurrence of
interfering audio signals and ground loops, greatly reduced installation time, and provide
prolonged trouble-free performance of your new equipment. Contact Val Avionics or
your local avionics distribution center for AP 100 Wire Harness ordering information.
Although strongly recommended, it is not required to use the factory fabricated wire
harness when installing the AP 100 Audio Panel. A wiring harness can be fabricated in
the field. Refer to appendix B of this manual for a complete wiring diagram. All wires
must be 22 AWG MIL-SPEC, unless otherwise noted in accordance with current
regulations. Two and three conductor shielded MIL-C-27500 or equivalent wire must be
used where indicated. Use AMP Contact Crimping Tool (AMP P/N 601966-1) with
Positioning Tool (AMP P/N 601699-5) or equivalent to ensure good quality contacts.
Refer to FAA Advisory Circular AC 43.13-2A for acceptable practices and techniques.
2.3.4 Audio Panel Installation
Carefully insert the Audio Panel into the mounting tray. The unit should slide into the
tray freely without binding. Approximately 3/8” before complete insertion into the tray
check for alignment of the DB25 connector on the unit and the mating DB25 connector at
the back of the tray. Using a 7/64” allen wrench access the locking pawl screw located at
the top center access hole on the face of the unit. Rotate the screw clockwise to draw the
Audio Panel fully into the mounting tray. There will be a .020” gap between the back
surface of the unit’s faceplate and the front edge of the mounting tray when the unit is
fully seated.
P/N 0720100
Page 5
Original Issue
December 06
