LG 3828W5~5 free download

File name 3828W5~5.PDF

4-1. Construction of microwave oven Cavity Cabinet locking in microwave and holding food. Door Gate coming in and out food. Magnetron It has window Inject microwave and seal to oven. structure OVEN CAVITY PARTS Controller INTERIOR PARTS Control and supervise BASE PLATE PARTS DOOR PARTS operating state of oven. LATCH BOARD PARTS CONTROL PANEL PARTS - 15 - 4-2. How does the microwave oven operate? After plugging your oven into a standard household socket, press start button or turn the timer. And then switches (primary, secondary, timer) close the circuit. Eventually the input power will be applied to turntable motor, timer motor, fan motor, oven lamp and high voltage transformer. A high voltage of 2,100 volts AC is generated in the second winging of H.V.Transformer. And the voltage is doubled by H.V.Capacitor & H.V.Diode. The 4Kv DC voltage is applied to filament of magnetron, then magnetron start to produce microwave. This microwave is injected to cavity. - 16 - 4-3. WARNING - High voltage circuit ( 4,000 volt ) * The half-wave voltage doubler circuit consists of the secondary winding of the high voltage transformer, H.V. diode (rectifier), and H.V. capacitor. The INPUT + - H.V. diode allows alternating current (AC) to flow in one direction only and + rectifies it to pulsating direct current (DC). The H.V. capacitor is able to store energy on one half of the AC cycle and release it on the other half cycle. SENONDARY WINDING AT * During the first half cycle of operation, the secondary winding of the 2000V transformer supplies 2000 Volts to the capacitor current flows through the MAGNETRON diode and returns to the transformer for a complete circuit. This half-cycle - of AC charges the capacitor to approximately 2000 Volts. + - INPUT * During the second half cycle of operat