I have a Odyssey X86J4105, the version that was delivered with an 128 GB SSD (not eMMC) and the blue case, and it will not start.
My questions are:
- Is there a way to reset/bypass/force the Odyssey-internal power converters to turn on?
- Is there something else that can be done to get the Odyssey to turn on when it is supplied with 12 V?
- If not, how does the repair flow work?
And also, which is the closest equivalent to my unit, in case it is not possible to repair? Is it this one: https://www.seeedstudio.com/ODYSSEY-X86J4125800-p-4915.html (SKU 102110539)?
This is the background:
The first indication was that the supplied 12V/2A power supply delivered less than 2 V, while disconnected from the Odyssey, so that supply is obviously broken.
I then connected the 12 V from a 250 W computer PSU, which can deliver > 10 A on the 12 V rail. When I pushed the power button, the blue LED lit up for about 3 seconds, during which the voltage on the input dropped from about 12.3 V to about 11.5 V (and from this 10+ A power supply, it means a large current went into the Odyssey, but I did not measure the current itself).
And then, after pushing the power button a few times, it did no longer even try to start (no blue light at all, and no voltage drop on the 12 V input).
I disassembled the unit, but saw no visible damage, no metallic shavings that caused a short-circuit, no burnt components. I also removed the heatsink, noticed way to much thermal paste, but that did not appear to be the problem either.
I did measure about 3.2 V at the test points near the power switch, which means that 12 V enters the device, and some low-level control voltage converter is active to supply the power-up logic, so it is not the input connector that is broken.
Without schematics of the board, I have no way of doing anything more right now.