On Mon, Apr 21, 2025 at 06:59 AM, @Ludwig_DH8WN wrote:
I would use a sharp pencil type tip for the solder iron, set the temperature to 350¡ãC, put a bit flux on D109, a bit solder at the tip and touch one side of D109. After a few seconds I would try slightly to lift this side of D109 using tweezers. After this the same for the other side until D109 is free.
I have successfully removed D109 on QMX+ using this technique.? I first used some 60/40 solder on both ends of the diode, with a hot iron, to melt the lead-free surface-mount solder, and mix it with the lower-temp solder (kind of like what happens with chip-quick).? Then heating 1 end at a time I was able to remove the diode.
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Then yes, it needs replaced with only a similar 3.6V 500mA diode; not too hard to put in place with tweezers, and solder one end at a time with a narrow tip and tweezers to hold it in place.? If you need one I can send one to you for a couple of $ so you don't need to pay a huge shipping fee.
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Stan KC7XE
