is a widely used manufactured for corporate-class HP Elite and Pro Series desktop computers. Finding an official "top-level" circuit schematic for this unit from HP can be incredibly difficult due to proprietary manufacturing. However, engineering reverse-analysis and common workshop repair histories yield a highly accurate technical roadmap of its component layout, main rail distributions, and top failure points.
The PS42419HA is a highly integrated power management IC designed for various applications, including industrial, medical, and consumer electronics. This guide provides a comprehensive overview of the PS42419HA schematic top, covering its architecture, functional blocks, and key design considerations.
The HP/Compaq PS-4241-9HA is a 240W 80 PLUS certified power supply used in SFF desktops like the Elite 8000/8200 and Pro 6000/6200 series, featuring 90.51% peak efficiency
systems. While a full manufacturer schematic is not publicly released, technical reports and repair documentation provide a detailed look at its "top-down" internal layout and performance. Core Specifications Total Power Output : 240 Watts. Efficiency : 80 PLUS Gold certified, achieving 90.51% efficiency at 50% load. Input Range : 100V–240V AC (4A). Form Factor : SFF (Small Form Factor), measuring approximately 95mm x 73mm x 154mm Amazon.com Top-Down Internal Layout & Components
is a high-efficiency switching power supply that uses a multi-rail output system specifically designed for HP's proprietary motherboard connectors (typically 4-pin and 6-pin). Primary Side (High Voltage): Contains the bridge rectifier and a large main filtering capacitor ps42419ha schematic top
Let’s walk through a real-world design: .
The central chip responsible for the independent standby voltage rail. In many versions of this board, it uses a TNY279PN or similar Power Integrations TinySwitch IC.
: Always refer to datasheets for component pinouts. This ensures you're connecting the component correctly.
). If this fails, the PC will not receive the wake-on-LAN or power-button signal. Shorted Schottky Diodes is a widely used manufactured for corporate-class HP
RDS(on)cap R sub cap D cap S open paren o n close paren end-sub
: Over time, the main primary capacitor or smaller secondary filter capacitors can bulge or leak, leading to fluctuating output or start-up failures.
The is a 240W 80 PLUS-compliant power supply unit (PSU) primarily found in HP Hewlett Packard small form factor (SFF) desktop computers. This switching power supply is known for its high efficiency (over 90% at typical loads) and custom compact layout. Technical Specifications and Architecture Rated Power: 240 Watts. Input Range: 100–240V AC, 50–60Hz, 4A. Output Rails: Main +12V (cumulative). 12VSB (Standby Voltage).
High ESR in primary auxiliary capacitor or secondary output filter caps. The PS42419HA is a highly integrated power management
) : This is the power-on signal. By default, it is pulled high to +5V by the PSU. . The Procedure: Unplug the PSU from the wall entirely. Plug an ATX power cable into the back of the PSU.
MOSFETs. This optimization significantly cuts thermal losses and pushes the unit to its 89%+ efficiency threshold . Component Diagnostics & Top-of-Board Mapping
For more information on the PS42419HA schematic top and its applications, please refer to the following resources: