The power switch controls all au-
dio selector panel functions and the
intercom. All pushbutton selections
and menu modes (except Bluetooth
telephone association) will be re-
membered and return to the last
state when turned on.
Radio power (as COM 1)
The power supply for the remote communication transceiver is separate from
the audio panel power and control. When the TY91L is installed as COM 1,
it can be controlled separately in the event of a problem in the audio panel
portion, or audio panel power loss.
If the audio panel is turned off by the left knob (or the audio panel breaker is
opened), the display will indicate "COM 1 Shutdown in 6 (counts down)"
If the Cancel button is not pushed, the com radio will also turn off, but if the
button is pushed within the time limit seconds, the radio frequency display,
volume and frequency control will remain active. Pushing the poser switch
will run the audio panel back on.
Communications Transmit (XMT) Selection (2)
The two buttons X1 and X2 (# 2) in the XMT section control which communi-
cations radio is selected for transmit. The top row of pushbuttons (# 3) al-
lows selection of the C1 (COM 1) or C2 (COM 2) receiver audio. Push the
lower button to select the desired COM transmitter. A green LED above the
button illuminates to indicate that the audio is selected.
The PAR200B has an automatic com receiver selector system. Audio from
the selected transceiver is automatically heard in the headsets and speaker (if
selected). You can check this function by switching from Com 1 transmitter
to Com 2 transmitter by pressing the Com 2 transmitter selector pushbutton.
See that the associated Com 2 receive pushbutton indicator light that is locat-
ed immediately above the Com 2 transmitter pushbutton turns green. This
guarantees that the pilot will always hear the audio from the transceiver se-
lected for transmit.
The PAR200B "remembers" the receiver selection, so that when switching
transmitters from Com 1 to Com 2, if Com 2 audio was previously selected,
Com 1 audio will continue to be heard. This eliminates
the pilot having to switch Com 1 audio back on, after
changing transmitters.
When switching from Com 1 to Com 2 while Com 2 was
not previously selected, Com 1 audio will be switched
off. In essence, switching the mic selector will not over-
ride prior selection of COM receiver audio.
Split Mode
The split mode can be activated at any time by pressing
the X1 and X2 XMT buttons at the same time. This places
the pilot on Com 1 and the copilot on Com 2.
Oct. 2019 PAR200B Pilot Guide
202-228-0300
Page 3
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