FTA-250L O
perATing
M
AnuAL
29
Troubleshooting For Headset Connection
Question
Answer
When connecting the SCU-15 headset adapter cable
between the radio and a headset, the radio cannot be
operated.
This happens when the plug on the SCU-15 headset adapter cable is not prop-
erly inserted into the MIC/SP jack. To make proper contact within the radio, the
plug must be pushed all the way into the MIC/SP jack and be fixed with the two
screws.
Can I purchase the optional PTT Switch from Yaesu?
Contact your Aviation dealer for details regarding purchasing an aftermarket
Push-To-Talk switch.
Will my headset work with this radio?
The SCU-15 headset adapter cable is made to operate with most aviation head-
sets; however to be certain, check with the headset manufacturer using the wiring
shown below. Also, confirm the connections and connector sizes are correct.
Headset specification requirements for SCU-15
Earphone (speaker) impedance: 8 Ω or above
Microphone impedance:
150 Ω ±20%
PTT pressed:
Ground
PTT not pressed:
Open
3.5mm plug
SCU-15
Speaker
PJ-055
(accepts 0.25” phone plug)
Microphone
PJ-068
(accepts 0.206” phone plug)
Speaker
PTT
Microphone
Ground
Содержание FTA-250L
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