Solder paste column M705, flux, board washing h2o with absolute Alcoholic beverages; board washing water is utilized to clean up the solder residue after repair; thermal gel (specification: Fujipoly SPG-30B) is used to smear the surface in the chip right after repair ；ball-planting steel mesh, solder absorption wire, solder ball (the ball diameter is usually recommended to get 0.
Repair approach: Look at the looks, measure the chip capacitor or resistance in front, normally It truly is caused by weak chip soldering or perhaps a chip capacitor, resistor damaging or irregular resistance;
3V electric power supply is ordinary; Check out the welding top quality on the chip which connects sensor as well as the modest warmth sink. The deformation of enormous heat sink substance will bring about very poor heat dissipation in the chip and affect the temperature big difference. Determine five-13 three. Phenomenon: Single board detection chip is not really full (PT1/PT2 stations)
Insufficient variety of chips: If the quantity of chips is inadequate, you are able to confer with PT2 for tests and repair.
When the chip’s physical appearance isn't broken, the chip with the bottom response level in each domain should get replaced.
Should you have any dissatisfaction in the transaction or have beneficial suggestions for us, be sure to Get in touch with us by using this e-mail deal with:
a) When the Liquid crystal display Exhibit ASIC NG: (0), first evaluate the whole domain voltage of 21V along with the Increase circuit voltage of Buy Now 25V after they are regular. Then use a brief-circuit probe to brief-circuit the RO check issue and 1V2 test issue amongst the initial and second chips, and then operate the chip acquiring plan.
Does any knowledge on this page seems incorrect and you prefer to for us to check it? Clarify The difficulty with as much details as you possibly can.
two. Getting old take a look at: Throughout the growing older test, repair really should be completed according to the monitored interface take a look at, including:
a-4) Look at When the pins of the 1st chip are soldered well (it absolutely was located during repair which the pins are tinned observing from the facet, however the pins will not be stained with tin in the slightest degree in the event the chip is eradicated)
Log classification: latest log, only data The present log when the miner is begun; historic log, information the logs which the miner has generated, though the document information is restricted, for example if it exceeds the upper Restrict, only the most recent is stored.
a) Change the voltage and frequency on the Operating voltage and frequency of The entire miner, Enable the miner conduct mining, and Examine irrespective of whether there is a minimize while in the hash amount.
four. With the examination of chip routine maintenance and substitute, it's important to detect the chip very first, and then do a functional exam after passing. The useful exam have to be certain that the tiny warmth sink is soldered nicely and the big heat sink is installed in place (each thermal conductive adhesive need to be applied evenly right before installing the big heat sink).
one. Pay attention on the Procedure method when replacing the chip. Just after changing any add-ons, the PCB board shall don't have any noticeable deformation. Check the substitute sections and also the surrounding areas for open up circuit and small circuit troubles.