PS Engineering PM1000 - Manual (Page 5)

PS Engineering Incorporated
PM 1000 FAA TSO Approved Intercom
Installation and Operation Manual
200-190-0002 9 Rev. 2, Jan. 2001
Section III OPERATION
With the installation is complete, turn the PM1000 on by rotating pilot's volume control. This also engages
the automatic fail-safe system. The pilot's volume control does not control the volume of the aircraft radio,
allowing an additional degree of aircraft radio listening flexibility.
Figure 0-1 PM1000 front panel controls
3.1 Adjusting the Volume
The pilot's volume control knob adjusts the loudness of the intercom and music for the pilot's headset only. It
has no effect on aircraft radio volume level. The copilot's volume control adjusts the intercom, music and
radio volume for the copilot.
3.2 Adjusting the Squelch Control
The PM1000 provides individual VOX circuits for the pilot and copilot. The ability to adjust the trip level of
these VOX circuits (squelch control) allows the use of dissimilar headsets without the frustration of clipping
the first syllables. The PM1000 has two squelch circuits, one for the pilot, another for the copilot. With dual
VOX circuits, background noise is dramatically reduced.
With the engine running, set the squelch control knob by slowly rotating the knob clockwise until the
background noise in the earphones stops. When the microphone is positioned properly near the lips, normal
speech levels should open the channel. When you have stopped talking, there is a delay of about one-second
before the channel closes. This prevents squelch closure between words, and helps eliminate choppy intercom
conversations.
3.3 Mode Select
The center switch is a two-position mode control that allows the pilot to tailor the intercom function to suit
flight conditions. Regardless of configuration, the pilot will always hear the aircraft radio. NOTE: If there is
PS Engineering Incorporated
PM 1000 FAA TSO Approved Intercom
Installation and Operation Manual
200-190-0002 10 Rev. 2, Jan. 2001
a power failure to the PM1000, or if the power switch is turned off, the copilot will not hear the aircraft
radio. Only the pilot is connected directly to the aircraft radio.
ISO (Up Position): The pilot is isolated from the intercom and is connected only to the aircraft radios. He
will hear the aircraft radio reception (and sidetone during radio transmissions). The copilot will hear music
but not the aircraft radio traffic.
ALL (Middle position): All parties will hear the aircraft radio, intercom, and music. However, during any
ICS conversation, the music volume automatically mutes. The music volume increases gradually back to the
original level after communications have been completed. The switch has a down position which is the same
as ALL.
3.4 Optional accessories
The PM1000 can be interfaced to optional expansion units (11918, 11918R, 11616) or expansion modules
(Telcom IV portable) to add additional capabilities, such as a crew mode. In CREW mode, pilot and copilot
are connected on one intercom channel while the passengers are on a separate and independent channel. The
pilot and copilot are connected to the aircraft radio and may listen to Music. Passengers can continue to
communicate with themselves without disturbing the pilot and copilot, and will hear the main music input.
Because the optional expansion modules are not FAA-TSO approved, we recommend the more capable FAA-
TSO approved PM1000II be installed instead of the PM1000 unit if these features are desired.
Section 4 Warranty and service
4.1 Warranty
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. If the unit is being installed by a non-
certified individual in an experimental aircraft, a factory-made harness must be used for the warranty to be
valid.
PS Engineering, Inc. warrants this product to be free from defect in material and workmanship for a period of
one year from the date of installation. During this one year warranty period, PS Engineering, Inc., at its
option, will send a replacement unit at our expense if the unit should be determined to be defective after
consultation with a factory technician. The buyer is responsible for shipping charges to return the exchanged
unit.
This warranty is not transferable. Any implied warranties expire at the expiration date of this warranty. PS
Engineering SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. This
warranty does not cover a defect that has resulted from improper or unreasonable use or maintenance as
determined by us. This warranty is void if there is any attempt to dissemble this product without factory
authorization. This warranty gives you specific legal rights, and you may also have other rights which may
vary from state to state. Some states do not allow the exclusion of limitation of incidental or consequential
damages, so the above limitation or exclusions may not apply to you.