Instructions for Avalon debug D signal shorting board

If you're fixing a hash board from the Avalon 10 series and your test equipment shows either 0 or some number, it doesn't matter if the C and CK signals look good or not. You can use the Avalon debug signal shorting board to quickly pinpoint the faulty chip. This board works with the A10, A11, and A12 series. Using it is a breeze: just press the switch to short-circuit the clip to the D signal on the board. This lets you replace the oscilloscope to find the fault point easily. Here's a quick rundown of the Avalon debug D signal shorting board: 1. Short the positive pole and connect it to the D signal test point for the chip you're working on. 2. Short the negative pole to the power supply's negative where the chip signal is located (that's the domain voltage Vcore). 3. There's a cable interface for the test fixture (two data interfaces). 4. A cable interface for the hash board (two data interfaces). 5. The switch works like this:    - Open: Normal test mode just like when the fixture isn't connected to this board.    - Press: Short-circuit search mode to find the chip number using the short-circuit clip (and the cable should be attached to the hash board). 6. There's a clip interface for short-circuiting. 7. A data cable. 8. A 12V power interface.