7. Soon after repairing the hash board, the thermal gel within the h2o cooling board have to be taken off and reprinted.
a) Once the card Restoration is correctly, the green LED indicator will be constantly on, and the ability shall be turned off and restarted;
3V ability source is normal; Check out the welding high-quality in the chip which connects sensor as well as the little heat sink. The deformation of huge warmth sink product will induce bad warmth dissipation with the chip and affect the temperature difference. Determine five-thirteen three. Phenomenon: Solitary board detection chip just isn't finish (PT1/PT2 stations)
a) LCD Show ASICNG: if (0), initial measure the entire voltage from the measuring area plus the Raise circuit 20V is standard, after which you can make use of the quick circuit probe to short-circuit the RO examination level along with the 1V8 test point concerning the primary and the second chip, and after that function This system to locate the chip. Examine the serial port log, if 0 chip is still identified presently, It will probably be amongst the next cases: a-one) Make use of a multimeter to evaluate if the voltages on the 1V8 and 0V8 check details are one.8V or 0.8V. If not, it implies which the 1.8V or 0.8V LDO circuit of the domain is irregular, or the two ASIC chips of the area will not be soldered well; most problems of this phenomenon are attributable to short circuits of 0.8V, one.8V patch filter capacitors (measure the resistance in the patch filter capacitors connected with the front and back in the PCBA). a-two) Verify if the circuits of U2, U3 and U4 are abnormal, for example resistance welding, and so forth. a-3) Evaluate the resistance of R232 or R233 that has a multimeter to examine whether it is inside of 1 ohms as well as the looking at will never jump randomly. Otherwise, please swap both of these resistors. a-four) Check if the pins of the primary chip are soldered very well (it had been found in the course of repair the pins are tinned observing from your side, nevertheless the pins will not be stained with tin whatsoever when the chip is taken out). b) If one particular chip are available in stage a), it indicates that the first chip and also the previous circuit are fantastic. Use an identical method to check the following chips. As an example, short-circuit the 1V8 take a look at level plus the RO test issue between the 38th and 39th chips. Should the log can find 38 chips, the very first 38 chips don't have any difficulty; if you continue to discover 0 chips, check the 1V8 1st; if It really is regular, this means that there's a difficulty Along with the chips immediately after 38. Continue on to analyze with dichotomy till the problematic chip is found. Assuming that there is a issue Using the Nth chip, once the 1V8 and RO between the N-1th and Nth chips are shorter-circuited, N-one chips are available, but in the event the 1V8 and RO involving the Nth and N+1th chips are shorter circuited, the entire chip cannot be observed.
two. When using the S19 pro+ Hyd collection test fixture for The 1st time, make use of the SD card flash method to update the FPGA on the fixture Management board, unzip it and duplicate it into the SD card, Contact Here and insert the card in to the fixture card slot.
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a) When the Liquid crystal display Display screen ASIC NG: (0), 1st evaluate the overall domain voltage of 21V and also the Improve circuit voltage of 25V when they are usual. Then use a short-circuit probe to shorter-circuit the RO test place and 1V2 take a look at stage involving the 1st and second chips, and then operate the chip discovering method.
b. Check out if the inlet air temperature with the miner is too superior, and confirm which the exhaust air is smooth.
If you don't adhere to this buy, it is extremely easy to bring about harm to U1 and U2 (not all chips can be found); Right before testing the pattern, the repaired hash board have to be cooled down prior to screening, if not it will cause tests PNG.
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3. The test SD card are going to be produced according to the requirements, and the double-sided heat sink eight-moments Patter test really should make an SD card, as proven while in the determine below;
(one) Utilize the APW12 power supply (APW1212V-15V and electrical power adapter cable) to make a take a look at platform: Use thick copper wires to the favourable and negative poles of the power supply, and afterwards hook up the PSU plus the hash board.
● Once the schedule test is passed (the quick-circuit exam of the final routine check is critical to stay away from the chip or other elements being burnt mainly because of the short circuit when the facility is turned on), the chip exam is usually executed with the hash board tester, plus the positioning is often determined based on the examination result of the hash board tester. ● In accordance with the exhibited benefits of your hash board tester detection, starting from near defective chip, Examine the chip check factors (CO/NRST/RO/XIN/BI) and voltages including VDD0V8 and VDD1V8. ● In accordance with the signal move, except for the RX signal, reversely transmit the sign (from No. 76 to No. 1 chip), numerous on the signals which include CLK CO BO RST are forward transmission (one-seventy six), and the abnormal fault stage are available with the electricity provide sequence.