Novice needing some help

[Iang]

Hi All,
I am at a loose end, I have an automatic satellite dish that has stopped functioning correctly. I dabble with Arduino from time to time so not an expert on electronics by any means. No one is willing to try and repair as they say it is uneconable even though its my money!

I have traced the board with what knowledge i have, i cant see anything untoward to speak like a blown track that has happened before on this pcb.
The only thing i have came across is that negative and positive poles of the Rf connector on both sides. When i test the legs of the, what i believe to be negative and positive there is continuity between them, I am on the understanding that they should be separate where by 12v is put through the lines via the inner copper core and the external sheathing.

Could someone clarify if i am correct in what I am saying so I can investigate further. Many thanks Ian

 

[gophert]

Some of those solder joints look funky. I'd start with those.

 

[Iang]

Hi gophert,,

Thanks for the reply!. as in Arduino I use breadboards. I have ordered a desoldering kit as i was going to desolder the legs of the RF sockets and test when separated from the PCB to narrow them out.

Could you point out what joints you mean?

Many thanks, Ian

 

[gophert]

Hi gophert,,

Thanks for the reply!. as in Arduino I use breadboards. I have ordered a desoldering kit as i was going to desolder the legs of the RF sockets and test when separated from the PCB to narrow them out.

Could you point out what joints you mean?

Many thanks, Ian

There are not a lot of solder joints to pick from and you have a better view than I do. Sometimes the camera catches reflected light weird and sometimes the solder joint is weird. I would not desolder anything. I would just hit them all with a bit of rosin core leaded tin solder and then test if it works.