Ps42419ha Schematic Work !exclusive! Online
Verify that the primary switching MOSFETs are not shorted.
HP PS-4241-9HA (also known by part number 715184-001) is a 240W Power Supply Unit (PSU) commonly found in HP 600, 700, and 800 G1 series desktops. While a full official schematic diagram is rarely released by the manufacturer, repair guides and technician teardowns provide key details on its internal circuitry and common failure points. Common Failure Points & Fixes
Power Supply: How Its Schematic Design Drives Optimal Efficiency The HP PS-4241-9HA ps42419ha schematic work
When performing , repair technicians often encounter the same failures. 1. No Power / Unit Dead
PS-4241-9HA is a high-efficiency 240-watt power supply unit (PSU) manufactured for Hewlett-Packard (HP) Verify that the primary switching MOSFETs are not shorted
The PS42419HA is a customized, high-efficiency power supply designed by HP, often utilizing a high-side current-sense resistor to enhance efficiency and reliability. The schematic work for this unit generally revolves around its high-efficiency design, which boast an average efficiency of roughly 88.83% at 50% load. Core Components and Circuit Sections
Check the high-value megaohm resistors feeding the standby PWM controller IC. If these drift high in resistance, the IC will never get the initial voltage required to boot. Missing or Flashing Main +12V Rail Common Failure Points & Fixes Power Supply: How
The voltage is converted to a raw DC voltage via a bridge rectifier.
L = (Vin_max - Vout) * (Vout / Vin_max) / (ΔIL * Fsw) For 24V input, 5V output, 500kHz, and 30% ripple current (0.6A): L ≈ 22µH to 33µH (saturation current > 3A).
