How to repair electromagnetic oven
Test and maintenance of induction cooker:Maintenance Diancilu should master the use including oscilloscope, multimeter, power meter instrument, electric soldering technology should have excellent (such as desoldering integrated circuit) element detection (such as using a multimeter detection diode, triode), circuit test (as measured by the high frequency signal and fault oscilloscope) analysis of basic skills.Troubleshooting method: the whole machine has no response. When the electromagnetic oven is connected to the power supply, the LED and the luminous digital tube are not lighted, and all the keys do not work. The most direct judgment should be that the key display circuit does not work.
Test the power adjustment circuit of the induction cooker.
Access to the heating coil, but do not put the pot, turn on the power supply, test the waveform generator synchronization circuit, current detection circuit, power drive circuit is normal.
In order to ensure the smooth maintenance of induction cooker, it is necessary to test and test steps before overhaul:1, no electricity, there is no visual burning fuse, circuit, loose joints weld connector faults; then measuring bridge, IGBT door control element has no breakdown.2, do not access the heating coil, turn on the power supply, test the main loop power supply is normal, auxiliary power circuit (5V, 18V), SCM, display and other circuits are normal. Test all the points on the motherboard before you proceed to the next step.
