Schematic Lenovo ThinkPad L13 Lar-1 18834-1M Schematic

[Salim Badakhshan]

Lenovo ThinkPad L13 Lar-1 18834-1M Schematic

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Technical Specifications

Parameter	Value
Brand	Wistron Corporation
Project Code	4PD0HK010001
Board Number	18834-1
Revision	LAR-1
Date	2020-03-19
CPU Platform	Cometlake-U
EC / KBC	NPCE288
Audio Codec	CX11880-11Z
BIOS / SPI Flash	SPI Flash 16MB
BIOS Flash Capacity	16MB
Charging IC	BQ25710ARSNR
Charger Architecture	Battery Charger/Selector
Power IC(s)	TPS51393RJER, TPS51395RJER, TPS51486RJER, TPS51396RJER, NCP302045LMNTWG, NCP81253MNTBG, NCP81218MNTXG, NCP302035LMNTWG, RT5797ALGQW
RAM Type	DDR4
RAM Architecture	MEMORY DOWN
LAN IC	Intel 219LM/V
WiFi / WLAN IC	Jefferson Peak
Card Reader IC	RTS5232S-GR
USB Hub IC	PS8747B
HDMI Level Shifter	PS8407A
Thermal Sensor	NCT7717U, NCT7718W
Document Number	A4199

Technical Summary

This Wistron Ares-1 (LAR-1) Cometlake-U motherboard, project code 4PD0HK010001, uses board number 18834-1 and document number A4199, dated 2020-03-19. The platform is Intel Cometlake-U with DDR4 memory down architecture. The embedded controller is an NPCE288. The system uses a 16MB SPI flash for BIOS. Audio is handled by a Synaptics CX11880-11Z codec. Power management includes a BQ25710ARSNR battery charger/selector and multiple DC/DC converters from Texas Instruments and ON Semiconductor. The integrated LAN is an Intel 219LM/V, and wireless connectivity is provided by an Intel Jefferson Peak module. A Realtek RTS5232S-GR card reader and a Parade PS8747B USB hub are present. HDMI connectivity uses a Parade PS8407A re-driver. Thermal monitoring is managed by NCT7717U and NCT7718W sensors.

Technician FAQ

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

A: The embedded controller is an NPCE288.

Q: What is the BIOS flash capacity and type?

A: The BIOS is stored on a 16MB SPI flash.

Q: What charging IC and architecture does this board use?

A: The charging IC is a BQ25710ARSNR, configured as a battery charger/selector.

Q: What is the memory architecture?

A: The board uses DDR4 memory down architecture.

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

Indexed motherboard components

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4PD0HK010001 Project Code 18834-1 Board Number Cometlake-U CPU Platform NPCE288 EC / KBC CX11880-11Z Audio Codec BQ25710ARSNR Charging / PD IC NCP302035LMNTWG Power IC NCP302045LMNTWG Power IC NCP81218MNTXG Power IC NCP81253MNTBG Power IC RT5797ALGQW Power IC TPS51393RJER Power IC TPS51395RJER Power IC TPS51396RJER Power IC TPS51486RJER Power IC DDR4 RAM Type 219LM/V LAN Controller Jefferson Peak WiFi / WLAN RTS5232S-GR Card Reader IC PS8747B USB Controller PS8407A Signal Conditioning IC NCT7717U Thermal / Fan Control NCT7718W Thermal / Fan Control