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

Vahab Hemmati

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Lenovo ThinkPad L13 Lar-1 18834-1M Schematic




Technical Specifications

ParameterValue
BrandWistron Corporation
ModelAres-1 (LAR-1)
Motherboard ManufacturerWistron Corporation
Project Code4PD0HK010001
Board Number18834-1
RevisionLAR-1
Date2020-03-19
CPU PlatformCometlake-U
Platform AliasAres-1 (LAR-1)
PCH / SouthbridgePCH-LP
EC / KBCNPCE288
Audio CodecCX11880-11Z
BIOS / SPI FlashSPI Flash 16MB, SPI Flash 32MB
Charging ICBQ25710ARSNR
Charger ArchitectureBattery Charger/Selector
Power IC(s)NCP302045LMNTWG, NCP81253MNTBG, NCP81218MNTXG, TPS51393RJER, TPS51395RJER, TPS51396RJER, TPS51486RJER, RT5797ALGQW
RAM TypeDDR4
RAM ArchitectureDDR4 MEMORY DOWN
RAM Quantity / SlotsCHANNEL A, CHANNEL B
Card Reader ICRTS5232S-GR
LAN ICIntel 219LM/V
WiFi / WLAN ICJefferson Peak
HDMI Level ShifterPS8407A
Document NumberA4199

Technical Summary

The Wistron Ares-1 (LAR-1) motherboard, project code 4PD0HK010001, is based on the Cometlake-U platform with an Intel PCH-LP southbridge. The board number is 18834-1, documented under A4199, dated March 19, 2020. It utilizes an NPCE288 embedded controller and features dual SPI flash configurations of 16MB and 32MB. The audio subsystem is handled by a CX11880-11Z codec. Power management includes a BQ25710ARSNR battery charger/selector and multiple DC/DC converters such as the NCP302045LMNTWG, NCP81253MNTBG, NCP81218MNTXG, TPS51393RJER, TPS51395RJER, TPS51396RJER, TPS51486RJER, and RT5797ALGQW. Memory architecture is DDR4 memory down with Channel A and Channel B. The board integrates an Intel 219LM/V GbE PHY, Jefferson Peak WLAN, an RTS5232S-GR card reader, and a PS8407A HDMI re-driver.

Technician FAQ

Q: What BIOS IC models are used on this motherboard?

A: The schematic references two SPI flash configurations: one 16MB and one 32MB.

Q: Is the EC/KBC programmable on this motherboard?

A: The embedded controller is an NPCE288.

Q: What is the charging architecture on this motherboard?

A: The charging architecture uses a BQ25710ARSNR battery charger/selector.

Q: What is the memory architecture on this motherboard?

A: The memory architecture is DDR4 memory down with Channel A and Channel B.

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

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  • Lenovo ThinkPad L13 Lar-1 18834-1M Schematic.pdf
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