The Fact About s19 hash board repair That No One Is Suggesting
The Fact About s19 hash board repair That No One Is Suggesting
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4mm); when changing a whole new chip, you'll want to tin the chip pins and after that solder for the hashboard, and after that lock big warmth sinks immediately after making use of thermal gel evenly on the chip area.
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a) LCD Show ASICNG: if (0), to start with evaluate the overall voltage of your measuring area along with the Strengthen circuit 20V is usual, after which make use of the quick circuit probe to limited-circuit the RO test issue and also the 1V8 take a look at position concerning the 1st and the next chip, and then function This system to locate the chip. Examine the serial port log, if 0 chip remains to be observed at the moment, Will probably be one of the subsequent predicaments: a-one) Make use of a multimeter to measure whether the voltages with the 1V8 and 0V8 check points are 1.8V or 0.8V. Otherwise, it suggests the one.8V or 0.8V LDO circuit of this area is abnormal, or The 2 ASIC chips of the domain is just not soldered well; most situations of the phenomenon are due to small circuits of 0.8V, one.8V patch filter capacitors (measure the resistance of your patch filter capacitors connected to the front and back on the PCBA). a-two) Examine whether the circuits of U2, U3 and U4 are irregular, like resistance welding, and many others. a-three) Measure the resistance of R232 or R233 that has a multimeter to examine if it is inside one ohms and also the looking through will never leap randomly. If not, be sure to switch both of these resistors. a-four) Check If your pins of the initial chip are soldered perfectly (it was located for the duration of repair the pins are tinned observing with the aspect, but the pins aren't stained with tin in any respect if the chip is taken out). b) If a single chip can be found in phase a), it suggests that the main chip as well as previous circuit are excellent. Use an identical technique to check the following chips. As an example, short-circuit the 1V8 check point along with the RO examination issue among the 38th and 39th chips. In case the log can find 38 chips, the main 38 chips don't have any issue; if you still uncover 0 chips, Check out the 1V8 1st; if It is regular, it means that there is a difficulty While using the chips after 38. Continue to research with dichotomy till the problematic chip is observed. Assuming that there is a problem with the Nth chip, when the 1V8 and RO concerning the N-1th and Nth chips are short-circuited, N-one chips can be found, but once the 1V8 and RO involving the Nth and N+1th chips are quick circuited, your entire chip can't be found.
1. Concentrate to your operation strategy when changing the chip. Right after replacing any components, the PCB board shall have no apparent deformation.
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Kernel Log: it keeps data of ANTMINER's Procedure stages, which serves as a way to troubleshoot some common difficulties. The strategy to enter the miner log: enter the miner IP tackle within the address bar of Google or Firefox browser >> enter the user title/password (default root/root) >> the miner log
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Continue on to analyze with dichotomy until eventually the problematic chip is uncovered. Assuming that there's a trouble with the Look Here Nth chip, in the event the 1V8 and RO between the N-1th and Nth chips are small-circuited, N-1 chips can be found, but once the 1V8 and RO concerning the Nth and N+1th chips are small circuited, the entire chip can not be discovered.
(two) U1 can't be utilized on other number of types If your OTP operate is enabled about the Handle board.
nine. The exam fixtures at the upkeep close all utilize the Test_Mode manner and utilize the scan code method for testing.
In case the voltage worth has a substantial deviation, Look at it with the calculated worth of the adjacent group to determine The difficulty.
② The 2nd case: Micro-limited circuit amongst signals (0-many ohms), brought on by the smaller resistor price of the chip pins, very first use a warmth gun to solder and find out whether it is Alright;
a) Liquid crystal display Screen ASICNG: if (0), 1st measure the total voltage on the measuring domain and also the boost circuit 19V is ordinary, after which you can make use of the quick-circuit probe to short-circuit the RO check issue along with the 1V8 examination level in between the very first and the second chip, and afterwards function This system to find the chip.