Schematic | Ps-4241-9ha

So the next time you see a part number scrawled on a dusty power supply, do not walk past. Bow your head. Somebody’s logic, somebody’s hope, somebody’s midnight fire in a lab is still flowing through those copper traces. The PS-4241-9HA is dead. Long live the PS-4241-9HA.

handles lethal currents exceeding 300V DC after rectification. Large capacitors can hold this charge for minutes or even hours after the unit is unplugged.

There is no poetry in a part number. Or so the uninitiated would claim. ps-4241-9ha schematic

+12Vmain (14.4A), +12Vcpu (12.0A), +12Vsb (1.30A), -12V (0.15A)

While a component-level schematic is rare, the architecture follows a standard with active PFC. Here is the high-level block diagram you would expect to see in the schematic: So the next time you see a part

When a desktop fails to turn on, the power supply is often the primary suspect. Without a schematic, technicians are forced to guess component values or trace complex multi-layered circuit boards by hand. A proper schematic provides several critical pieces of data: Component Identification:

Do not assume this pinout matches your unit without checking the PCB silkscreen. Reversing the sense lines can blow the supervisor IC. The PS-4241-9HA is dead

80 PLUS Bronze/Gold (varies by revision; typically ~88% average) 148mm x 128mm x 94mm Internal Circuitry & Schematic Overview