Remote control IR transmitter pads damaged

[lmcancu]

Hi,

Trying to fix a remote control where the IR transmitter has been pulled off. I am unable to solder it back on since the pads are damaged. I'm wondering if there is a way to fix the pads or solder the IR tx at other locations where the connections can be made. I've attached a picture of the PCB and the IR tx. I'm thinking I can solder it just before the resistor 1R0 at the solder point, and just before the XR chip at the solder point? Am I right? I marked the new points in yellow, and also where the original connections where.

Thanks for any help!

[Longbow]

Re: Remote control IR transmitter pads damaged

There is no great way to fix this problem. I have used super glue to glue the broken pads back onto the board. If they are intact, it will provide some support for the led. If not, then glue the led in place. In both cases, hard wire the leads with a bit of #30 wire. As always, pay attn to diode polarity.

[PCBONEZ]

Re: Remote control IR transmitter pads damaged

Solder some scrap lead to traces as shown.
[Must clean coating off first.]
Then solder LED to scrap lead.

[lmcancu]

Re: Remote control IR transmitter pads damaged

Thanks, when you "scrap lead" do you mean scrap wire? For the contact on the bottom left, how would I solder it on to the trace?

[PCBONEZ]

Re: Remote control IR transmitter pads damaged

I mean the bits of lead clipped off caps after installed, or similar.
Is more rigid than copper wire so better mechanical support for the LED.

Might want to put another bend it it to keep it off the board slightly where the LED will attach to it.
Will make soldering on the LED easier.

"""how would I solder it on to the trace?"""
Clean/scrape the gunk off the trace down to bare copper then solder to the trace the same way you do to a pad, only it's long and skinny vice a round spot.
Ideally want 1/4 inch or so of run to ensure enough contact area and mechanical support.
.
If needed, a dab of silicon after the job is done [and checked] will provide more mechanical support [prevent movement].
.

[lmcancu]

Re: Remote control IR transmitter pads damaged

Thanks worked like a charm! Scraped off a little to reveal the copper, then I used tape to hold the leads in place while soldering them, then put some electrical tape permanently to make sure it didn't move.