In microscope light source fault repairs, it was found that some users (about 25%) lack understanding of microscope light source systems and instead send microscopes that could have been resolved by themselves from far away or sent to their workplaces for repair. Not only is it time-consuming, but also labor-intensive and costly. To help these microscope users avoid unnecessary detours and unnecessary expenses, let me first introduce the repair methods when encountering a microscope light source failure:
1. Check if the bulb is burnt out. About 10% of users bring their microscopes to the manufacturer for repair because some filaments are burned and difficult to distinguish with the naked eye.
2. Check if the fuse is blown. About 5% of users return to repair because some fuses are difficult to visually identify after blown-out fuses. The correct way to check is to use a multimeter in the resistance range to check if the fuse is in good condition
3. Check whether the microscope bulb socket has poor contact due to surface oxidation due to high temperature. About 7% of users bring the microscope for repair due to oxidation on the lamp socket surface. The correct inspection method is to remove the bulb, use fine sandpaper or a small blade to sand off the oxide layer on the lamp holder surface, then reinstall the lamp to check if the socket has good contact.
4. Check whether the power socket is making good contact. About 3% of users bring microscopes with no light source issues to the manufacturer for repair, but after plugging in the power, the microscope's light source works normally.
