The identifiers HSB J MV-6 94V-0 refer to a printed circuit board (PCB) manufactured by
, primarily used as a motherboard or daughterboard in laptops. While these codes are often found on the board itself, they typically represent the raw PCB material's safety and manufacturing standards (UL certification) rather than a specific motherboard model name. Verified Technical Profile HannStar E89382
architecture is widely found in mid-range consumer laptops from several major brands: Common Laptop Integrations
: EliteBook Folio 9470M (often as an I/O daughterboard for audio/USB). : Aspire E5-571, E5-531, and E5-571G series. : Latitude N4030 (specifically the MV-4 variant). Core Specifications (Standard Revision): : Intel HM86 Express. Processor Support : Intel 4th Generation (Haswell) Core i3/i5/i7. : Up to 16GB DDR3L 1600MHz across two SODIMM slots.
: Integrated Intel HD 4400/4600; some variants include a discrete NVIDIA GeForce 820M. Schematic PDF & Repair Resources hsb j mv6 94v0 e89382 schematic pdf verified
Verified schematic diagrams for this specific board are rarely released officially by the manufacturer and are often found through third-party technical repositories. Verified Schematics Repository
: You can find archived PDF versions of the E89382 motherboard schematic on Technical Communities
: For troubleshooting power-on issues or BIOS reprogramming, technicians frequently use the HP Support Community to request specific boardview files and BIOS dumps. Manuals & Guides : Professional repair forums like DIY-LaptopRepair
offer deep dives into common failure points, such as the 19V input rail and CMOS battery circuits. Critical Repair Note rating is a flammability standard, and The identifiers HSB J MV-6 94V-0 refer to
is HannStar’s UL file number. When searching for parts or specific schematics, it is highly recommended to look for the laptop model number (e.g., HP Folio 9470M) or the OEM Part Number
| Source | How to Access | Notes |
|--------|---------------|-------|
| Manufacturer’s Customer Portal | Register at portal.hsb.com, navigate to Support → Documentation → MV6 Series. Search for E89382. | Requires a valid purchase or NDA; the PDF is watermarked with “Verified – Version 1.3”. |
| Authorized Distributors | Websites of Digi‑Key, Mouser, or Arrow often host the datasheet & schematic under the “Design Resources” tab. | PDFs are typically a few weeks behind the portal release; verify the revision number. |
| Industry Forums & Technical Communities | Threads on EEVblog, All About Circuits, or the Reddit r/ECE subreddit occasionally share “download‑verified” copies. | Community‑verified copies can be reliable, but always cross‑check revision numbers and page stamps. |
| Direct Request to HSB‑J Support | Email techsupport@hsb.com with your serial number and the phrase “Request: HSB‑J MV6 94V0 schematic PDF (E89382) – verified”. | The fastest way to receive a PDF with a signed verification certificate. |
Tip: The official PDF contains a revision stamp on the bottom‑right corner: “Rev 1.3 – Verified 2025‑11‑12”. If the stamp is missing or the revision number does not match the module’s label, the file is likely unofficial.
| Segment | Meaning | |---------|---------| | HSB‑J | Manufacturer/Series – “HSB‑J” denotes a family of high‑speed board modules produced by Horizon Semiconductor Boards (HSB). | | MV6 | Module version – the 6th revision of the “MV” (Motor‑Vehicle) line, optimized for automotive‑grade temperature ranges. | | 94V0 | Voltage/Power rating – indicates a nominal 94 V operating voltage with a “V0” (zero‑tolerance) regulation class. | | E89382 | Engineering drawing / internal document ID – the unique identifier used by the design team to reference the schematic, BOM, and test data. | Tip: The official PDF contains a revision stamp
Understanding the breakdown helps you quickly confirm that the schematic you download matches the exact hardware you are working with.
Instead of searching the jumbled code, follow this systematic approach.
The HSB-J series is designed for 10/100 Base-T or 10/100/1000 Base-T Ethernet applications.
| Parameter | Specification | | :--- | :--- | | Interface | RJ45 Female Jack with Integrated Magnetics | | Port Configuration | 1x1 (Single Port) | | Speed Rating | Supports 10/100 Mbps or up to 1Gbps (depending on specific suffix) | | Isolation Voltage | Typically 1500V RMS (Minimum) | | Crosstalk | High isolation between TX and RX pairs | | Operating Temperature | 0°C to +70°C (Standard) | | Mounting Style | Through-Hole (Standard for MagJacks) |
| Symptom | Likely Block | Diagnostic Steps | |---------|--------------|-------------------| | No power on the 5 V rail | DC‑DC Converter | Probe VIN, VOUT; check MOSFET gate drive (Q2) and sense resistor. | | Spurious resets of MCU | Digital Control Unit | Verify decoupling (C2‑C8), check brown‑out detector (VBAT pin). | | Excessive EMI on PWM outputs | Power Input Stage / PWM Drivers | Use a spectrum analyzer on PWM pins, confirm proper ground plane continuity. |