Schematic Lenovo Thinkpad X13-T14s Gen 1 Intel GT4A3-GX3A2 NM-C891 Rev 1.0 Schematic

[Salim Badakhshan]

Lenovo Thinkpad X13-T14s Gen 1 Intel GT4A3-GX3A2 NM-C891 Rev 1.0 Schematic

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Technical Specifications

Parameter	Value
Brand	LC Future Center
Project Code	Jazz2/Sideswipe2
Revision	VER 1.0
Date	Aug/8/2019
CPU Platform	T14S/X13
Charger Architecture	BQ25700A
Audio Codec	ALC3287
EC / KBC	MEC1663
RAM Type	DDR4
RAM Architecture	SUB CHANNEL-A, SUB CHANNEL-B, SUB CHANNEL-C, SUB CHANNEL-D
LAN IC	GBE JACKSONVILLE
Card Reader IC	MEDIA CARD CONTROLLER
HDMI Level Shifter	DDI DEMUX/HDMI LEVEL SHIFTE
USB Hub IC	USB PD CONTROLLER
WiFi / WLAN IC	CNVI
Power IC(s)	NB690, NB693, TPS51393, BU90104, MP2949AGQKT, MP86901C, MP86901, MP86901A, NB687
Charging IC	BQ25700A
Thermal Sensor	APS G-SENSOR
TPM	DISCRETE TPM 2.0

Technical Summary

This LC Future Center schematic, revision VER 1.0 dated Aug/8/2019, documents the Jazz2/Sideswipe2 project for the T14S/X13 platform. The motherboard utilizes a DDR4 memory architecture with four sub-channels (A, B, C, D). The embedded controller is a MEC1663, and the audio subsystem is built around an ALC3287 codec. Power management includes a BQ25700A battery charger and a comprehensive set of DC/DC converters and load switches, including the NB690, NB693, TPS51393, BU90104, MP2949AGQKT, MP86901C, MP86901, MP86901A, and NB687. The system integrates a GBE JACKSONVILLE LAN controller, a MEDIA CARD CONTROLLER, a DDI DEMUX/HDMI LEVEL SHIFTE, a USB PD CONTROLLER, and a CNVI interface for wireless connectivity. Security is handled by a discrete TPM 2.0 module, and an APS G-SENSOR is present for thermal management.

Technician FAQ

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

A: The embedded controller is a MEC1663.

Q: What is the charging IC and architecture?

A: The battery charger IC is a BQ25700A.

Q: What audio codec is present?

A: The audio codec is an ALC3287.

Q: What is the memory architecture?

A: The motherboard uses DDR4 memory configured across four sub-channels: SUB CHANNEL-A, SUB CHANNEL-B, SUB CHANNEL-C, and SUB CHANNEL-D.

Q: What is the project code and platform?

A: The project code is Jazz2/Sideswipe2, and the platform is T14S/X13.

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

Indexed motherboard components

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JAZZ2 Project Code SIDESWIPE2 Project Code T14S CPU Platform X13 CPU Platform ALC3287 Audio Codec MEC1663 EC / KBC DDR4 RAM Type BU90104 Power IC MP2949AGQKT Power IC MP86901 Power IC MP86901A Power IC MP86901C Power IC NB687 Power IC NB690 Power IC NB693 Power IC TPS51393 Power IC BQ25700A Charging / PD IC DISCRETE TPM 2.0 TPM / Security IC