2. When the EEPROM NG is shown to the Liquid crystal display monitor of your hashboard tester, Look at if the welding of U5 is regular;
Repair approach: Check out the appearance, evaluate the chip capacitor or resistance in front, normally It truly is because of weak chip soldering or perhaps a chip capacitor, resistor harming or abnormal resistance;
3V power supply is typical; Test the welding quality with the chip which connects sensor along with the tiny heat sink. The deformation of enormous heat sink content will cause inadequate warmth dissipation with the chip and influence the temperature variance. Figure five-13 3. Phenomenon: One board detection chip will not be comprehensive (PT1/PT2 stations)
Inadequate quantity of chips: If the quantity of chips is insufficient, you'll be able to confer with PT2 for testing and repair.
nine. When replacing a fresh chip, cleanse the pins and apply solder paste making sure that the chip is coated with tin in advance of soldering.
3. In the event the‘PIC sensor NG’is exhibited within the Liquid crystal display display from the hashboard tester as well as tested temperature is abnormal, then follow the ways under to troubleshoot:
Utilize the check fixture in the V2.3 Management board (take a look at fixture substance selection ZJ0001000001). The favourable and destructive poles from the exam jig should be put in with discharge resistors. Utilizing a cement resistance of 20 ohms and 100W or more is recommended.
The repaired hash board could be judged as a superb item with more than two passes when examined Using the hash board tester.
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● The repaired hashboard can be judged as a good products with a lot more than two passes when tests with the hashboard tester. For the first time, after replacing the components, anticipate the hashboard to cool down, utilize the hashboard tester to test, and after the test is handed, set it apart then amazing it down. For the second time, after a few minutes in the event the hashboard cools down, take a look at once more.
three. The check SD card are going to be manufactured In keeping with the requirements, as well as double-sided warmth sink 8-situations Patter take a look at needs to make Order Here an SD card, as shown while in the determine beneath;
① The primary situation: (normally the worth from the documented chip is not going to alter each and every check), this case is probably going to get attributable to irregular soldering on the front and rear CLK, CI, BO of your X-th chip, so center on these 6 resistors.
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