PS Engineering PMA6000M-C Installation Manual User Manual
Page 15
PS Engineering
PMA6000 Series Audio Selector Panel and Intercom System
Installation Manual
200-066-0100
Page 2-8
Rev. 1, March 2005
2.9.4
Operational Checkout, 3
rd
Com version (6000C and 6000M-C)
1. Complete steps 1 to 10, above.
2. Rotate the mic selector switch to the C
OM
3 position. Verify that the pilot communicates on the trans-
ceiver in the Com3 position and the copilot on Com 1.
3. Verify proper operation of all receiver sources by selecting them using the keypad. Note that the but-
ton for the receiver sources stays in, and the button illuminates to show which source is in use.
4. Push in the S (SPR) button. Verify that all selected audio is heard in the cockpit speaker. Verify that
the audio mutes when the mic is keyed.
5. Verify that the LED in the intercom changes from green to red when a microphone is keyed. NOTE:
LED does not change color in "Split Mode".
6. Verify proper Intercom System operation in the A
LL
, I
SO
and C
REW
modes.
7. Verify that the unit under test does not adversely affect any other aircraft system by systematically
switching the unit on and off, while monitoring the other avionics and electrical equipment on the air-
craft.
2.10 Marker Checkout, 6000M, 6000M-C Only
1. Connect a ramp generator at the antenna end of the marker coax. With the unit under test in HI sensi-
tivity, verify that a 150
µVolts, modulated 95% with 1300 Hz signal will illuminate the amber (M)
marker light, and that marker audio is present in the headphones when the Marker Audio (M) push-
button has been depressed. Select "S" for speaker to verify marker audio availability on the cabin
speaker. Verify that the white (A) and blue (O) lights will illuminate within
± 3dB of the amber lamp,
with 3000 HZ and 400 Hz applied, respectively.
2. Repeat with the unit in LOW sensitivity, with 1400
µVolts applied.
3. Connect the marker antenna and verify proper operation.
2.11 Final
Inspection.
Verify that the wiring is bundled away from all controls and no part of the installation interferes with air-
craft control operation. Move all controls through their full range while examining the installation to see
that no mechanical interference exists. Verify that the cables are secured to the aircraft structure in accor-
dance with good practices, with adequate strain relief. Ensure that there are no kinks or sharp bends in the
cables and coaxial cables. Verify that the cables are not exposed to any sharp edges or rough surfaces, and
that all contact points are protected from abrasion. Complete log book entry, FAA Form 337, weight and
balance computation and other documentation as required. Return completed warranty registration applica-
tion to PS Engineering, or register onlin