④ Detect whether or not the pins of the primary chip usually are not soldered correctly (you'll find tins within the pins with the aspect over the repair course of action, but soon after getting rid of the chip, it's located which the pins are certainly not stained with tin);
Abnormal temperature: Usually, the temperature is high. The maximum PCB temperature set by our checking system simply cannot exceed ninety℃.
Once the defective chip is found, weld the chip once more by including flux within the chip and heating the solder joints from the chip pins to a dissolved condition. This tends to prompt the chip pins and pads to re-operate in and obtain the tin, achieving the effect of tinning all over again.
a) Liquid crystal display Display screen ASICNG: if (0), initial measure the full voltage in the measuring area and the Improve circuit 20V is regular, and afterwards use the brief circuit probe to limited-circuit the RO examination position along with the 1V8 exam issue concerning the 1st and the second chip, after which work the program to find the chip. Verify the serial port log, if 0 chip is still observed at this time, It'll be among the following cases: a-one) Use a multimeter to evaluate if the voltages at the 1V8 and 0V8 take a look at factors are one.8V or 0.8V. If not, it implies that the 1.8V or 0.8V LDO circuit of the area is abnormal, or the two ASIC chips of this area isn't soldered perfectly; most conditions of the phenomenon are a result of limited circuits of 0.8V, one.8V patch filter capacitors (evaluate the resistance from the patch filter capacitors connected with the front and back of your PCBA). a-two) Look at whether the circuits of U2, U3 and U4 are abnormal, for instance resistance welding, etc. a-3) Measure the resistance of R232 or R233 that has a multimeter to examine whether it is within one ohms and also the reading through is not going to soar randomly. Otherwise, be sure to switch both of these resistors. a-4) Examine Should the pins of the first chip are soldered effectively (it was identified in the course of repair the pins are tinned observing from your side, even so the pins are certainly not stained with tin at all when the chip is removed). b) If one chip are available in move a), it signifies that the 1st chip plus the earlier circuit are great. Use an identical method to examine the following chips. As an example, short-circuit the 1V8 test place as well as the RO take a look at level among the 38th and 39th chips. If the log can find 38 chips, the very first 38 chips haven't any issue; if you continue to locate 0 chips, Look at the 1V8 initially; if It is usual, this means that there's a problem with the Order Now chips soon after 38. Proceed to research with dichotomy right until the problematic chip is observed. Assuming that there's a trouble While using the Nth chip, once the 1V8 and RO involving the N-1th and Nth chips are shorter-circuited, N-one chips can be found, but once the 1V8 and RO among the Nth and N+1th chips are shorter circuited, the whole chip cannot be located.
To summarize, the repair method for your hash board consists of plan inspection, chip test, fault localization, and testing and verification. Via these actions, the defective chip might be Situated and repaired or changed, along with the hash board could be analyzed to make certain it really is functioning adequately.
● When finding the faulty chip, the chip really should be welded yet again. The tactic is to add flux round the chip (if possible no-clean flux), and warmth the solder joints on the chip pins to your dissolved condition to prompt the chip pins and pads to re-operate in and collect the tin, In order to attain the result of tinning yet again. When the fault remains the identical after re-soldering, you'll be able to right exchange the chip.
Kernel Log: it keeps data of ANTMINER's Procedure stages, which serves as a method to troubleshoot some common troubles. The method to enter the miner log: enter the miner IP deal with during the deal with bar of Google or Firefox browser >> enter the consumer title/password (default root/root) >> the miner log
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37V. This case is because of the chip not staying soldered thoroughly, ordinarily 1.2V, 0.8V, RXT, CLK are certainly not soldered adequately. It is suggested to directly evaluate the domain voltage to Track down the problematic domain. The 1V2 and RO quick circuit process used in area a) may also Find the abnormal spot
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If any difficulties crop up in the examination, they need to be repaired according to the checking interface as well as check LOG prompts. The upkeep solutions for that Preliminary take a look at plus the growing older check of The entire equipment are the exact same.
Our replacement hashboards are not just refurbished, They're upgraded to make sure greater effectiveness and dependability than the first. Each individual hashboard goes by way of a rigorous Restoration course of action that makes them extra trusted than new types straight through the manufacturer.
Evaluate irrespective of whether There may be output on the second pin of U6 and the voltage is about three.3V; if Sure, please continue on to troubleshoot the trouble; if there isn't any three.3V, please Test the connection standing of the hashboard tester cable plus the hashboard is OK, and reprogram the PIC.
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