Schematic lengda lengda m300b main pcb schematic

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lengda lengda m300b main pcb




Technical Specifications

ParameterValue
BrandLengda Technology Ltd.
Motherboard ManufacturerLengda Technology Ltd.
DateWednesday, March 05, 2014
CPU PlatformINTEL Chief River Platform
EC / KBCIT8502E-NX
Audio CodecALC662
Charging ICBQ24725
Power IC(s)TPS51117, TPS51125, TPS51216, TPS59641, TPS51604, APW7141, APW8819, APW8812
Charger ArchitectureNVDC(6V-12.6V)
RAM TypeDDR3L
RAM ArchitectureDDR3L CH0, DDR3L CH1
RAM Quantity / SlotsSO DIMM1, SO DIMM2
LAN ICLAN
WiFi / WLAN ICWIFI
Card Reader ICCard Reader
USB Hub ICUSB HUB
GPU TypedGPU
Graphics ArchitectureGPU Ventura Platform
dGPU Chip NumberGPU Ventura Platform

Technical Summary

This Lengda Technology Ltd. motherboard is based on the INTEL Chief River Platform and features a GPU Ventura Platform dGPU architecture. The system is powered by a NVDC (6V-12.6V) charger architecture using a BQ24725 charging IC. Memory is provided via DDR3L across two SO-DIMM slots (SO DIMM1 and SO DIMM2) on channels DDR3L CH0 and DDR3L CH1. The embedded controller is an IT8502E-NX, and audio is handled by an ALC662 codec. Power management is distributed across multiple ICs including TPS51117, TPS51125, TPS51216, TPS59641, TPS51604, APW7141, APW8819, and APW8812. The board includes LAN, WIFI, a Card Reader, and a USB HUB controller.

Technician FAQ

Q: What EC/KBC is used on this motherboard?

A: The EC/KBC is an IT8502E-NX.

Q: What is the charging architecture and charging IC?

A: The charger architecture is NVDC (6V-12.6V) using a BQ24725 charging IC.

Q: What audio codec is used?

A: The audio codec is an ALC662.

Q: What is the memory configuration?

A: The board uses DDR3L memory across two SO-DIMM slots on channels DDR3L CH0 and DDR3L CH1.

Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
 

Attachments

  • Lengda=Lengda M300B MAIN PCB.pdf
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