) enters through an IEC 60320 C14 receptacle. The primary schematic section details protection components against line surges and Electromagnetic Interference (EMI): Typically a slow-blow ceramic fuse acting as the primary sacrificial element. Metal Oxide Varistor ( MOV1cap M cap O cap V 1
This PSU is specifically designed for small form factor (SFF) business desktops. It is widely used in the following series: HP Compaq 4000, 6000, 6005, 6200, 8000, 8100, 8200 SFF HP Pro 6000, 6005 SFF Design Highlights & Components
The AC line enters through a standard IEC C14 socket. The first block on the schematic contains common-mode chokes, X-capacitors, and Y-capacitors designed to filter out Electromagnetic Interference (EMI). A Metal Oxide Varistor (MOV) sits across the live and neutral lines to clamp high-voltage spikes, while a ceramic fuse protects the board from catastrophic overcurrent events. 2. Primary Rectification and Active PFC
Based on the alphanumeric string , this appears to be a reference to a specific industrial or proprietary hardware schematic—likely a power supply unit, a control board for a manufacturing robot, or a specialized piece of telecommunications infrastructure. D10-240p1a Schematic
While no official schematic exists, repair communities have experience with this model. Be cautious, as opening a PSU exposes you to dangerous high voltages, even when unplugged.
Before analyzing the inner circuitry, it is essential to understand the nominal operating boundaries certified by the manufacturer. According to 80 PLUS efficiency testing data , the unit operates with high power factor values and optimized thermal dissipation:
Uses fast-switching Schottky diodes to rectify the transformer output. ) enters through an IEC 60320 C14 receptacle
: Active PFC circuit to improve efficiency and reduce electrical noise.
These alternative models are available on various platforms:
Often cheaper to replace than repair, with refurbished units readily available (e.g., from CPUMedics ). It is widely used in the following series:
[AC Input] ──> [EMI/EMC Filter] ──> [Bridge Rectifier] ──> [Active PFC Stage] │ ┌─────────────────────────────── [Main Switching Transformer] ◄───┘ │ │ ▼ ▼ [Secondary Rectification (Schottky)] [Standby Circuit (+12Vsb)] │ │ ▼ ▼ [Filtering LC Network] [Supervisory IC (Power Good)] │ │ └───────────────────> [DC Outputs] <─────┘ 1. Input Protection and EMI Filtering Stage
(1) Slim 6-pin auxiliary connector for specific peripheral requirements
Locating the connected to the feedback pin of the secondary IC.
: Custom SFF shape with a specific 6-pin and 4-pin motherboard connector layout typical of HP's proprietary designs. Common Troubleshooting Tips