5. In the examination of repairing and replacing the chip, the chip has to be tested first, and afterwards the purpose take a look at shall be carried out after passing. The functionality take a look at ought to be certain that the smaller heat sink is welded qualified. When installing the massive heat sink, the area from the chip need to be evenly coated with thermal gel along with the cooling admirer shall be at complete pace.

Open up MPLABIPE and choose unit: PIC16F1704, simply click ability to pick out the power offer manner, then click on work.  Step one: select file to discover the .HEX file to become programmed;  The next step: click on connect with link Ordinarily;  The third move: click the program button, and after completion, click verifiy to prompt the verification to verify that the programming is profitable. Determine 5-seven Determine five-eight Forth move: check the Improve circuit output

8V, 1.8V patch filter capacitors (evaluate the resistance in the patch filter capacitors associated with the front and back of the PCBA)

When powering to the hashboard, connect the detrimental copper twine of the power provide 1st, then the good copper twine of the ability offer, And at last, insert the sign cable.

PatternNG is due to the large distinction between the features from the chip as well as other chips. At the moment, it really is identified which the chip die is broken, so just replace the chip. Based on the log information, the alternative principles are as follows: If the looks from the chip will not be broken, just switch the chip with the lowest response rate in each area. The next figure reveals among the list of test logs, it might be observed through the log that the reaction level of four chips asic[36][37][43][seventy five] is lower.

Pattern NG is brought on by the large difference between the features of the chip and various chips. At this time, it is actually uncovered the chip die is destroyed, so just switch the chip. Based on the log data, the alternative policies are as follows:

; Next, after the Visible inspection is passed, the impedance of every voltage area is usually examined to start with to detect irrespective of whether You will find a short circuit or an open circuit. If Sure, it needs to be addressed initial. In addition, Look at whether the voltage of each domain is about 0.36V.

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two. Ageing test: In the course of the growing old check, repair really should be carried out according to the monitored interface Go Here examination, for example:

Repair system one: Evaluate whether the domain voltage of your reset reduced chip domain is decreased than the normal area, whether it is lower, evaluate whether the pin resistance from the reset small chip is larger than that of the traditional chip.

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