When servicing a power supply, what is essential to do with several 250 uF capacitors connected in parallel?

Discharging capacitors before servicing a power supply is crucial for safety and equipment protection. When multiple 250 uF capacitors are connected in parallel, they can store a significant amount of charge. If they are not properly discharged, a technician could encounter a dangerous electrical shock or potentially damage components when the circuit is accessed.

By discharging the capacitors to chassis ground through a suitable resistor, you can safely remove the stored energy in a controlled manner. The resistor helps to limit the discharge current, preventing sudden surges that could damage the circuit or create a hazardous situation. This step is essential in ensuring that the power supply is safe to work on and reduces the risk of injury during servicing.