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(11)  Do a test transmission on COM 2 from the co-pilot station.  Make sure that: S The PTT button gives proper transmission on COM 2. 
(12)  Push the COM 1 button.  Make sure that: S The green LED in the COM 1 button comes on. S The COM 1 receiver can be heard. 
(13)  Do a test transmission on COM 2 from the pilot station.  Make sure that: S The PTT button gives proper transmission on COM 2. 
(14)  Push the COM 1 button.  Make sure that: S The green LED in the COM 1 button comes on. S The COM 1 receiver can be heard 
(15)  Turn the mic selector switch to the COM 1/2 position.  Make sure that: S The pilot can communicate on COM 1. S The co-pilot can communicate on COM 2. 
(16)  Turn the mic selector switch to the COM 2/1 position.  Make sure that: S The pilot can communicate on COM 2. S The co-pilot can communicate on COM 1. 

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Detail Steps/Work Items  Key Items/References 
(17)  Select each receiver in turn using the selector buttons.  Make sure that: S The button latches correctly. S The LED in the button comes on to show that it is in use. S Audio from each selected equipment connects to the head-sets. 
(18)  Push the HI-LO-T/M button to the T/M position.  All 3 marker lights must come on. 
(19)  Push the VOL knob to turn the unit OFF. 
(20)  Do a test transmission on COM 1 from the pilot station. 
(21)  Set AVIONIC MASTER switch to OFF. 
(22)  Set the ALT/BAT switch (Lycoming version) or ELECTRIC MASTER key switch (TAE version) to OFF. 
(23)  Disconnect the head-sets from the head-set sockets. 

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Detail Steps/Work Items  Key Items/References 
(1)  Make sure that all the head-sets are connected. 
(2)  Set the ALT/BAT switch (Lycoming version) or ELECTRIC MASTER key switch (TAE version) to ON. 
(3)  Set AVIONIC MASTER switch to ON. 
(4)  Rotate the left small knob past the click to turn the unit ON. 
(5)  Push the TEST button.  All LED's and lights must come on. 
(6)  Push the COM 1 MIC button.  Make sure that: S The green LED's in the COM 1 button and the COM 1 MIC button come on. S The COM 1 MIC button LED does not flash. 
(7)  Do a test transmission on COM 1 from the pilot station.  Make sure that: S The PTT button gives proper transmission on COM 1. S The COM 1 receiver can be heard. S The volume and squelch can be adjusted. 
(8)  Do a test transmission on COM 1 from the co-pilot station.  Make sure that: S The PTT button gives proper transmission on COM 1. S The COM 1 receiver can be heard. S The volume and squelch can be adjusted. 
(9)  Push the COM 2 MIC button.  Make sure that: S The green LED's in the COM 2 button and the COM 2 MIC button come on. S The COM 2 MIC button LED does not flash. 

Doc # 6.02.01 Page 211
Rev. 4 09 Jan 2003

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