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#Post#: 9--------------------------------------------------
Galaxy DX-959 10kc Switch Modification
DIR By: kycbradio
Date: October 5, 2018, 3:33 am
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Galaxy DX-959 10kc Switch Modification
Here are the steps to perform this mod:
1 - Locate pin 16 of the MB8719 PLL chip.
2 - Cut the trace on pin 16 and place a 4.7K ohm quarter watt
resistor.
3 - Next find a miniature SPDT three position, "center off"
switch. You can get these at Radio Shack.
4 - Solder a wire from the center contact on the switch to the
chip side of the resistor that you just placed across the cut of
pin 16.
5 - Take another wire and solder it to one of the remaining
contacts on the switch and run it to pin 18 of the PLL or DC
ground.
6 - Solder a wire to the remaining switch contact and run this
wire to pin 9 of PLL.
The center position is for normal channels. However, depending
on the currently selected channel, the two switch positions will
allow you to go to the channel immediately above or below thus
allowing access to the desired "A" channel frequencies.
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