XIEGU X1M Pro User Manual - page 7
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audio filter, which provides for the design of a very compact audio filter without the necessity of
either bulky or precision components.
The left hand knob sets the center frequency for the filter. When turned on, the unit powers up
from the power applied to the rear of the unit (9 volt battery, or 12.8 volt supply), with a standard
5.5 x 2.1 mm power jack. With power off, the filter is bypassed.
The LED on the front between the two knobs indicates that the power on.
The right hand knob sets the overall bandwidth, with maximum bandwidth at full clockwise
rotation of the knob. This then provides satisfactory SSB voice reception.
The two jacks on the back are for audio input from the X1M or other audio source, and the output
jack provides a signal to headphones, a small loud speaker, or an amplified computer speaker.
The jacks are standard 3.5 mm stereo jacks.
(Das Filter ist voraussichtlich ab März 2014 erhältlich)
Microphone Pin Out
The microphone pin connections are as follows. The microphone connector is a standard 3.5 mm
stereo plug. The color coding of the wires may vary, as this is a re-purposed commercial speaker
microphone.
Sleeve – common. (Black)
Ring – PTT button – closure to sleeve.(White)
Tip – Microphone. (Red)
Case Removal
1. Disconnect all wiring.
2. Slip both knobs off.
3. Remove the nuts on the volume control and frequency adjustment shafts.
4. Remove
ALL four screws on front panel. Gently remove the front panel.
5. Remove
ONLY the two top screws on the back panel.
6. Do
NOT remove the screw on the bottom of the case! This retains the final amplifier
transistor.
7. The top of the case simply slides forward and off.
A 2.5 mm or 3/32" Allen wrench can be used to remove the screws. The 2.5 mm Allen wrench is
a better fit.
Re-assembly -- reverse the foregoing procedure. Do not press the frequency knob on too far, or
you will not be able to access “push” functions. Make sure that the rubber function buttons clear
the holes in the front panel.
Some of the loudspeakers have come loose in transit. A small dab of hot glue will take care of
this. Check this if things “rattle,” or examine the speaker when you have the case off.