When replacing a component on my DJM450 (DJ Mixer) I stupidly cracked a small part of the PCB. Now, in terms of effect for me, it's minimal but very annoying.
I want to repair it, if possible.
Every video, walkthrough, etc I have seen has not addressed the PCB as I understand it in these photos.
So, does anyone have a guide or advice?
Is it worth attempting the repair considering that I have a workaround if I have to?
Most of the videos I have seen have done the work between the "lines". Where as, if I am correct, I would need to repair/ solder the actual copper "lines". Am I mistaken?
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Edit: For clarity before I close;
- It's a DJM-450
- It's only got design/ "lines" on one side of the board (the side you can see)
What I did;
- Scraped back the coating on the board
- Soldered the "lines" using small solder (clamped the board and had someone hold a light for me!)
- Did a quick test to ensure it was working
- Using epoxy on the other side, sealed the board
- Tested working again and screwed back in place.
Thank you all.
Best Answer
Look at the copper traces on each side of the board. Find a solder pad that each of the (on each side of the crack) gives access to the trace. Solder some 24 to 28-gauge wires to those pads that essentially bridge across the crack. It looks like 4 traces are impacted on the side you show. There may be more on the other side. Based on the low quality design and lack of copper flood, I'm guessing it is a two layer board and you have no inner layers to worry about.
Also, drill a 1.5mm hole (1/16" hole) through the crack to stop crack propagation. Ideally at the end of the crack or within 10mm of the end of the crack if components are in the way. See yellow x. Best loactation I can see but you'll have to check other side of the board for any interferences.