This case is usually brought on by irregular series resistance welding of CLK, CI, and BO over the front and rear of the X chip, so just center on examining these 6 resistors. You will find a smaller chance that it is because of abnormal welding of the subsequent pins in the 3 chips X-one, X, and X+one:
Query the log, if the subsequent is exhibited, it implies that the hashboard has couple of chips or perhaps the hashboard hasn't detected it.
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3. In the event the 'PIC sensor NG' is displayed around the Liquid crystal display display with the hash board tester plus the tested temperature is irregular, then follow the measures below to troubleshoot: A) Look at whether or not the 4 resistors of R217, R218, C22 and C23 are welding abnormally, and Look at whether the welding of PIN of U5 is normal; B) Check out if the 4 temperature sensors of U5, R216, R219, R220, U7, R221~R223, U8, R224~R226, U9, R229~R231 plus the matching resistance welding are irregular, The placement from the temperature feeling is as shown in Determine 4-4 and five-thirteen, the temperature sensor is all located about the again in the PCB, the resistance is situated on the front and back on the PCB, and whether the temperature sensor 3.
Use the hashboard tester of the V2.2010 Handle board. The good and detrimental poles from the tester need to be installed with discharge resistors. It is usually recommended to use a cement resistor of 25 ohms and more than 100W.
three. Should the‘PIC sensor NG’is shown around the LCD monitor on the hashboard tester and also the examined temperature is irregular, then follow the techniques below to troubleshoot:
a-3) Measure the resistance of R232 or R233 that has a multimeter to check if it is inside 1 ohms plus the reading will never bounce randomly. Otherwise, be sure to change both of these resistors
Look at the welding excellent of the warmth-sensitive chip and Order Now also the compact heat sink. The deformation of the massive heat sink substance will trigger bad warmth dissipation of the chip and have an impact on the temperature variation.
(two) Utilize the take a look at fixture of your V2.1010 Management board (its product is ZJ0001000001), the positive and detrimental poles of the facility source of the check fixture must be put in which has a discharge resistor, and it is usually recommended to make use of a cement resistor of 25 ohms and over 100W.
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four. For the exam of chip upkeep and substitution, it is necessary to detect the chip to start with, and afterwards do a practical take a look at right after passing. The useful test have to make certain that the compact heat sink is soldered properly and the massive warmth sink is installed in position (each thermal conductive adhesive has to be utilized evenly right before installing the large heat sink).
2) Fewer connection: Less link refers to that Amongst the three boards, 1 piece is lacking. Generally, There's a issue with the relationship amongst the hashboard along with the Handle board. Verify the cable to see when there is an open circuit.