You almost did all basic thing but have you tried to run only one hashboard I mean keep the chain 2 running and disconnect the other two hashboard and test if it still detects only 10 ASICs.
Unfortunately, I don't have any skill on electronic thing or soldering.
If you don't have skills your best option is to bring them to the professional technician about ASIC hashboard ZeusBTC is one of the known who can repair these boards and they have lots of repair centers where you can send them but the problem is they don't have a center in Indonesia.
But if you still want you can check the list of their repair centers here
https://www.zeusbtc.com/ASIC-Miner-Repair/Another option is to buy a replacement hashboard you can directly buy it on Bitmain or buy on ZeusBTC.