Schematic Lenovo Thinkpad X13 Yoga LBB-2 19733-1 Schematic

[Salim Badakhshan]

Lenovo Thinkpad X13 Yoga LBB-2 19733-1 Schematic

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Technical Specifications

Parameter	Value
Brand	Wistron Corporation
Model	Bumblebee (LBB-2) Cometlake-U
Motherboard Manufacturer	Wistron Corporation
Project Code	4PD0JH010001
Board Number	19733-1
Revision	LBB-2
Date	Tuesday, March 03, 2020
CPU Platform	Intel Cometlake-U Series
Document Number	A41106
EC / KBC	NPCE388
Audio Codec	Realtek ALC3287-CG
BIOS Flash Capacity	32MB
Charging IC	BQ25700ARSNR
Power IC(s)	TPS51285B, NCP302045LMNTXG, NCP81253MNTBG, NCP81218PMNTXG, RT5797ALGQW
RAM Type	DDR4
RAM Architecture	Memory Down
RAM Quantity / Slots	2
Card Reader IC	RTS5232S-GRN
LAN IC	Intel 219LM/V
WiFi / WLAN IC	Harrison Peak
GPU Type	Intel Cometlake-U Integrated
Graphics Architecture	eDP 1.4 (4 Lanes) 5.4GT/s

Technical Summary

The Wistron Bumblebee (LBB-2) Cometlake-U motherboard, project code 4PD0JH010001 and board number 19733-1, is built around the Intel Cometlake-U Series platform. It features an NPCE388 embedded controller and a Realtek ALC3287-CG audio codec. The system memory consists of two DDR4 memory-down modules. Power management is handled by a BQ25700ARSNR battery charger and multiple DC/DC converters including TPS51285B, NCP302045LMNTXG, NCP81253MNTBG, NCP81218PMNTXG, and RT5797ALGQW. The board integrates an Intel 219LM/V Gigabit Ethernet PHY and an onboard Harrison Peak WLAN module. Storage is supported via a 32MB SPI flash for BIOS and an M.2 2280-S3 SSD slot. The graphics subsystem utilizes the integrated GPU with eDP 1.4 display output.

Technician FAQ

Q: What is the board number and project code for this motherboard?

A: The board number is 19733-1 and the project code is 4PD0JH010001.

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

A: The embedded controller is an NPCE388.

Q: What is the charging IC on this motherboard?

A: The battery charger IC is a BQ25700ARSNR.

Q: What audio codec is used on this motherboard?

A: The audio codec is a Realtek ALC3287-CG.

Q: What is the RAM architecture on this motherboard?

A: The RAM architecture is DDR4 memory-down with two modules.

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

Indexed motherboard components

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4PD0JH010001 Project Code 19733-1 Board Number Intel Cometlake-U Series CPU Platform NPCE388 EC / KBC ALC3287-CG Audio Codec BQ25700ARSNR Charging / PD IC NCP302045LMNTXG Power IC NCP81218PMNTXG Power IC NCP81253MNTBG Power IC RT5797ALGQW Power IC TPS51285B Power IC DDR4 RAM Type RTS5232S-GRN Card Reader IC 219LM/V LAN Controller Harrison Peak WiFi / WLAN Intel Cometlake-U Integrated Graphics eDP 1.4 (4 Lanes) 5.4GT/s Graphics