FunkTronic Commander Zweitbesprechung R, Быстрый старт

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czb_a_eng (10.10.2012)
- 6 -
Kompetent für Elektroniksysteme
czb_a_eng (10.10.2012)
- 7 -
Kompetent für Elektroniksysteme
Jumper Layout
1
JP5
JP1
JP2
JP3
JP4
JP6
1
1
JP5
JP6
JP4
JP3
JP2
JP1
test point
GND
500 mV
internal loudspeaker
external loudspeaker
1
10
ST1
ST2
Jumper Function
Jumper Function ex factory
JP1 open -> loudspeaker is not muted if handset is taken
closed -> loudspeaker is muted if handset is taken - - - - - - - - - - default
JP2/JP3 closed at the top -> ST1 pin 8+9 function: hook
closed at the bottom -> ST1 pin 8+9 function: squelch - - - - - - - default
JP4 open -> AF input impedance higher than 10 kohm - - - - - - - - - - default
closed at the top -> AF input impedance 600 ohm
closed at the bottom -> AF input impedance 200 ohm
JP5 open -> minimum volume always present - - - - - - - - - - - - - - - - default
closed -> no minimum volume
JP6 closed at the top -> mute if TX to GND
closed at the bottom -> mute if TX to +12 volt - - - - - - - - - - - - - default
open -> no muting
The earphone is connected to socket
ST2
.