Urgh! Went back to inspect the diodes and realized I didn't hook up one of the cable. With all cables connected, and the light bulb over the blown resistor, the thing actually works! Heat and fan and everything... :)
Measuring the resistance of the light bulb, I get about 120 ohms. So I'm...
Hi all, I've tried the lamp test. Not only did the bulb (240v/40w) lit up brightly, the LCD screen turned on as well :). The interior oven lights also works, but that's about all it. When I pressed the power-on button, I get a long beep and an "Err" on the LCD. Ammeter indicates a current of...
Sorry to be a noob, regarding the identification of Phase and Neutral lines, according to my multimeter there is electrical continuity from the pin that I marked 240V to the Live terminal on the main power cable. Similarly for the pair of Neutral pins. Does that not confirm they are from Phase...
Hi and thanks for the circuit diagram. I'm just done measuring the top terminal (in your diagram) and can confirm it is 240V AC and goes to Live. The bottom two terminals goes to Neutral. The voltage across the burnt resistor measures 130V.
That IC is labeled LNK305GN (an AC/DC converter, from...
Thanks for the reply. The blown resistor is connected in series with two diodes and then to a 4.7uF/400V capacitor.
The diodes tested OK in-circuit (ranges between 0.45-0.55). The capacitor looks OK physically, no bulging or burn marks. So maybe only the resistor needs to be replaced?
Hi. I'm trying to replace a blown resistor on the control board of an electric oven. Unfortunately the color bands are partially darkened. Testing it with a multimeter gives an open-circuit in the resistor. I don't have the circuit diagram or the service manual for the appliance.
It looks...