The PS-4241-9HA Go to product viewer dialog for this item. is a 240W power supply unit (PSU) primarily found in HP desktop systems like the Compaq 6000 and 8000 Pro series. Known for its high efficiency, it is an 80 PLUS certified component designed for small form factor (SFF) workstations. 🛠️ Repair & Reliability Review
Zener Diodes: Diodes near the standby IC should be checked for shorts if the standby rail is dead. Purchasing & Replacements ps42419ha schematic top
If you have the physical component and are trying to solder or trace connections: The PS-4241-9HA Go to product viewer dialog for this item
Power Management Unit (PMU) The PMU block manages the power distribution, monitoring, and control of the IC. The PMU includes features such as under-voltage lockout (UVLO), over-voltage protection (OVP), and current limiting. Leg U: High-side switch (Tr1) + Low-side switch
Look for "bulging" or "leaking" electrolytic capacitors (the soda-can shaped components), which are clear signs of expiration. Voltage Testing: