8 good ways to repair induction melting furnace

1 . Intuitive method

2 . Contrast method   

3 . Replacement method 

4 . Plugging and unplugging

5 . System self-diagnosis

6 . Parameter check

7 . Open circuit method 

8 . Short circuit method

   Using a spare board of the same type to confirm the fault is a very effective way to narrow the inspection range. Induction melting furnace control board, power board and trigger board problems can often only be replaced, there is no other way, because most users will almost never get the schematic and layout, which makes it difficult to achieve chip-level maintenance.

    In view of the above conditions, before replacing the old circuit board and replacing the new circuit board, be sure to read the relevant information carefully, and then understand the requirements and operating procedures before hands-on, so as to avoid further failure. The replacement method is more accurate in determining the cause of the failure, but it is cumbersome to operate, sometimes difficult, and has some damage to the board. Therefore, the use of the replacement method depends on the specific conditions of the IF power failure and the difficulty of the existing spare parts and replacement of the maintenance personnel. In the process of replacing electrical components or circuit boards, the connection should be correct and reliable, and do not damage other components around it, so as to correctly judge the fault and improve the maintenance speed, and avoid artificial failure.

If in doubt two pins overhaul components apart when the road, they need not be removed, but then welded with the specifications of a component on the circuit board the component leads, good welding after the fault has disappeared, proved The suspected component is open. Then cut off the faulty components. When it is suspected that the capacity of a capacitor is reduced, it can also be judged by direct parallel connection.