I can't see anything obviously wrong w/ this part, it's possible that the problem is located on the controller PCB. For reference, the top PCB is the underside of a RK-9K controller:
D- and D+ are coming in on pin 5 and 6 of the top row (counted from the right), check the soldering of the pins and of these components: D102, D103, R113, R114, R106, R107, C104, C105, R104, and C103. On the Holtech chip check pins 3 and 4 of the right row, counted from the top. IF the PC doesn't see anything at all on the USB port w/ the board plugged in (no "USB device has a problem" message), pay close attention to R114, R104, and C103 (R104 is supposed to connect D- to +3.3V, telling the USB host that a device is connected.)
If all fails I would suggest to get a
replacement controller (Black Petal.)