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So I bought a lynx 2 from ebay and I noticed that the power is missing and when I put batteries in it and it doesn't power on(Ordered a power tuneup kit from console5). I noticed that whoever had the system recapped it and there is some kind off weird flux on it. I also noticed that some of the solder mask was ripped is that going to cause me problems?
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Is the yellow blob on the second photo the weird flux you're referring to?
What I'm seeing is that some three hole component appears to have been glued down (the yellow stuff) and has been removed. Whoever did the removal did scrape or tear the solder mask off when removing the glue; the streak of glue on the far side of the torn solder mask tells me the glue probably covered whatever that part was.
As far as the torn solder mask, that's just a big ground plane and shouldn't cause any problems unless some component comes in contact with it, which generally isn't likely. You can always order a small tube of solder mask, but frankly a piece of electrical or Kapton tape or even a coating of fingernail polish will do the job if it concerns you.
After a bit of poking around, that component is one of the three barrel plug sockets located on the top edge of the Lynx. You can see what it should look like in this picture.
After a bit more exploration, it appears that's the power jack, which would certainly explain why it won't power up, although it doesn't explain why it's not working on batteries. Just based on pictures, I'm fairly sure this is the part.
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yes the yellow blob
@christophe89153 Yeah, that's definitely some sort of glue. My suspicion is that port got damaged and was no longer secured to the motherboard so someone tried to glue it down, apparently unsuccessfully, then later decided to remove it and tore the solder mask in the process. I didn't run across any online user manuals for it so I don't know what that plug was for, though.
Appreciate the update I did some research of my own and found that the mosfet chip can go bad, the diode, and some other components can cause the system not to work
If you haven't already got them here's the schematic that will help troubleshoot
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