Video tutorials on repairing Antminer S9, S9i, T9, L3.

Miner models: S9, S9i, T9, L3 - 4 videos!
1. The lack of chips. In the log shows 62 chips? and when replacing chips nothing helps? A common problem with the S9, S9i, and L3 models. The fact is that the miner program does not count one, two or maybe 3 out of 63 chips when scanning chips! The video explains in detail on the S9 board how to solve this problem, for L3 we carry out the same manipulations with the signals! 1 video added!
2. There are 63 chips in the log, and the hash is 0. In two videos, there are two ways out of several how to identify this defect! As far as possible there will be additions and other reasons. Repair boards in video S9 and T9. 1 video added!