09-18-2017, 12:50 AM
Hey Simonsays!
When we got this first run of circuit boards from the manufacturer, there were a few things we needed to fix by hand. These things should be fixed in the manufacturing from now on.
One of them is directly related to your problem. I had fixed these, and we tested each of them before shipping them out. The exact issue you're talking about came up in a few of the boards. Of course we fixed them and retested them before shipping.
There is (most likely) a component that is making a bad connection. It is likely not fully soldered. My guess is that your board worked fine in our testing maybe because it was making contact but not fully soldered. In transit (or when you were working on it), it moved slightly and is no longer making a good connection.
It is also entirely possible that this issue is on the Pi or related to the soldering on the Pi. This would seem oddly coincidental, though. It would have to be just the one line that is responsible for the same exact problem we saw in our tests.
So, if you happen to be comfortable with soldering the small components (likely a resistor) on the circuit board, let me know. I'd get you more information about the likely cause.
If you aren't comfortable with that (which seems more likely), then the best way to fix it is likely to have us send you a replacement circuit board.
For now, though, if it's easy enough, could you send a couple hi-res photos of:
1) The FPZ board near the headphone jack.
2) The solder on the Pi Zero.
If possible, could you post them here or email them to me?
When we got this first run of circuit boards from the manufacturer, there were a few things we needed to fix by hand. These things should be fixed in the manufacturing from now on.
One of them is directly related to your problem. I had fixed these, and we tested each of them before shipping them out. The exact issue you're talking about came up in a few of the boards. Of course we fixed them and retested them before shipping.
There is (most likely) a component that is making a bad connection. It is likely not fully soldered. My guess is that your board worked fine in our testing maybe because it was making contact but not fully soldered. In transit (or when you were working on it), it moved slightly and is no longer making a good connection.
It is also entirely possible that this issue is on the Pi or related to the soldering on the Pi. This would seem oddly coincidental, though. It would have to be just the one line that is responsible for the same exact problem we saw in our tests.
So, if you happen to be comfortable with soldering the small components (likely a resistor) on the circuit board, let me know. I'd get you more information about the likely cause.
If you aren't comfortable with that (which seems more likely), then the best way to fix it is likely to have us send you a replacement circuit board.
For now, though, if it's easy enough, could you send a couple hi-res photos of:
1) The FPZ board near the headphone jack.
2) The solder on the Pi Zero.
If possible, could you post them here or email them to me?
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Neo Geo Pocket Flash Cart and Linker Project ( http://www.flashmasta.com/ )
Avatar art thanks to Trev-Mun ( http://trevmun.deviantart.com/ )