Not only that, if you screw it up you have nothing to lose if the unit doesn't work now anyway :)
I will detail my MCP1700 regulator mod when I get some time next week.
Chris
M0XTE
On Fri, 27 Jul 2018, at 15:59, Arv Evans wrote:
Carl M0ICR
Replacing the Si5351a is not all that difficult.?
I would use a Dremel type tool to cut the legs from the original chip.? Then use a soldering
iron and wooden toothpicks to remove the leg parts that remain on the PCB.? Clean up the
pads and solder the new Si5351 in place.? Do not use an excessive amount of solder.? You
need just enough to wet the pads and pins when heated.? It is okay if your soldering iron
bridges a couple of pins.? Using a minimum amount of solder keeps it from bridging solder
On Fri, Jul 27, 2018 at 8:01 AM <
m0icr@...> wrote:
Thank you to everyone for your useful tips and advice. After further testing I am now sure that the Si5351A is kaput, I am also sure that removal and replacement is beyond both my tools and ability. I guess I will have to put it down to experience and use the QCX for spare parts with an eye to purchasing a new QCX40 as 'radio funds' permit.
?
Thanks again for all the help.
73 Carl M0ICR
