Probably, the IP can not be uncovered due to irregular Procedure. Refer to the main issue for troubleshooting.
Repair approach: Check out the appearance, evaluate the chip capacitor or resistance in front, commonly it's a result of weak chip soldering or perhaps a chip capacitor, resistor damaging or abnormal resistance;
When the faulty chip is located, weld the chip once again by including flux within the chip and heating the solder joints in the chip pins to the dissolved point out. This may prompt the chip pins and pads to re-run in and acquire the tin, obtaining the influence of tinning once again.
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five. When powering within the hash board, you must initial join the negative copper wire of the facility offer, then the favourable copper wire of the PSU, And at last insert the signal cable. When disassembling, the order of installation needs to be reversed, initial take out the sign cable, then take out the constructive copper wire of the power source, and finally get rid of the damaging copper wire of the ability supply.
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four. Make the SD card In keeping with the necessities, double-sided warmth sink, 8 occasions Parrer Buy Now take a look at, you need to make the SD card as revealed from the determine underneath:
8. To replace a fresh chip, printing pins and soldering paste are needed to make sure that the chip is pre-soldered after which soldered towards the PCBA for repair
① The particular Evaluation strategy is as follows: First, carry out an individual-board PT2 take a look at to check whether the effectiveness of your hash board is typical.
Abnormal fan Show: In such conditions, we must Test if the lover performs Generally, whether the connection with the Regulate board is standard, and whether the Management board is irregular.
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Repair system: Using the dichotomy process, brief-circuit the 1V8 take a look at level as well as the RO test level involving the 38th and 39th chips throughout the brief-circuit probe. If the log can discover 38 chips, there isn't any dilemma with the initial 38 chips; if short-circuiting 47 chips, though the log reviews 46, it suggests which the 47th chip cannot be detected, and there is no trouble With all the Visible inspection. Commonly, the 47th chip shall be replaced;
(one) Make use of the APW12 power supply (APW1212V-15V and energy adapter cable) to build a test System: Use thick copper wires with the positive and unfavorable poles of the ability offer, after which you can join the PSU as well as hash board.
PS: In case the hash board is not really driven or driven off in accordance with the test sequence, leading to U2 and U10 to burn up out, it is going to report 0 when testing the chip;