Warranty And Service; Mic Selector Switch (Fail Safe Operation) - PS Engineering PMA6000 Pilot's Manual And Operation Manual

'dot' and long 'dash' bursts at 95 combinations per minute.
The White lamp, labeled "I," (or "A" in some versions) is the
Airway/Inner marker and has a 3000 Hertz 'dot' tone. The lamp
and tone will be keyed at a rate of six times per second.
The audio from the Marker Beacon Receiver can be heard by
selecting the "M" push-button switch.
A 3-position switch is used to set the receiver sensitivity and to
test the indicator lamps. Use "H
allows you to hear the outer marker beacon about a mile out.
Then select the "L " sensitivity to give you a more accurate
OW
location of the Outer Marker. The momentary down switch po-
sition is labeled "T " and illuminates all three lamps simul-
EST
taneously to assure the lamps are in working order.
Early PMA6000M units incorporated a Marker Self Test.
Upon first application of power to the unit, the Marker enters a
self test mode. The flickering blue marker light indicates a test
in process. If the test continues for more than 10 seconds, or
the lamps do not extinguish, return the unit for service.

Warranty and Service

In order for the factory warranty to be valid, the installations in
a certified aircraft must be accomplished by an FAA- certified
avionics shop and authorized PS Engineering dealer. An FAA
Form 337 must also be accompanied by the warranty card for
this warranty to be in effect. If the unit is being installed by in
an experimental aircraft by the owner/builder, a factory-made
harness must be installed for the warranty to be valid.
PS Engineering, Inc. warrants this product to be free from de-
fect in material and workmanship for a period of three (3)
years from the date of installation (on units shipped after Jan 1,
1999). During the first twelve (12) months of this three-year
warranty period, PS Engineering, Inc., at its option, will send a
replacement unit at our expense if the unit should be deter-
mined to be defective after consultation with a factory techni-
cian. In the following twenty-four (24) months the unit must be
10 202-066-0001
" sensitivity initially. This
IGH
PMA6000-Mono Pilot Guide
beled Nl (Nav 1), N2 (Nav 2), D (DME), M (Marker), A
(ADF), AX (auxiliary), and S (Speaker) are "latched" type
switches. When one of these buttons is pressed, it will stay in
the "in" position. Press the switch again and it will be in the
"out" position and remove that receiver from the audio. While
selected, the switch will also be annunciated by an internal
lamp.
NOTE: In Split Mode, no pushbuttons will be active. The only
audio selected is from Com 1 and Com 2, as indicated by their
respective lamps.
Speaker Amplifier
The "S" in the push-button section stands for speaker. This
switch will place all selected audio on the cockpit speaker
when this switch is selected. NOTE: with the exception of
unswitched unmuted inputs (Altimeter warning), the speaker
amplifier is not active in the "Split Mode." To reduce power
consumption and internal heat buildup in the avionics stack,
switch off the speaker amplifier when not in use.

Mic Selector Switch (Fail Safe Operation)

Figure 2 Mic Selector
Unit power is turned on and off by the Mic
selector switch. In the
position, the pilot is connected directly to
Com 1 allowing transmit and receive capa-
bility regardless of unit condition. Any time
power is removed or turned
OFF
placed in the fail-safe mode. In fail-safe mode, the pilot head-
set is connected directly to Com 1. The first position clockwise
from O is C 1. Both pilot and copilot will be connected to
FF OM
the Com l transceiver.
Both the pilot and copilot have transmit capabilities on the selected
PMA6000 –Mono Pilot Guide 202-066-0001
or " - "
OFF FAIL SAFE
, the audio selector will be
3