Dit instrument miste de connector voor de externe voeding. Een probleem met de aan/uit knop, een batterij probleem en iemand had het nog wat erger gemaakt door de antenne te beschadigen bij een reparatie poging. Ik heb de antenne gerepareerd, … Lees verder →
These burned things began their lives as resistors. The problem is the pcb is fried too. First step, make pictures and a sketch and then I mill away the burned section. Then I make an insert and glue that in. … Lees verder →
Tĥis is the pcb from a G&M Secutest. It was not working like it should. The problem turned out to be some vaporized traces inside the 4 layer pcb, a LM358 with ventholes, a dead 555 from the boost … Lees verder →
This one had a few fried resistors due to a short caused by damaged isolation from a wire. I first removed the resistors. The picture above is after cleaning with IPA. The pads are loose but not damaged. The black … Lees verder →
Fluke uses a resistor divider to tell the processor in what position the switch is. It is made from a sort of carbon film. At the picture above you can see it. This meter has also a problem … Lees verder →