Schematic Lenovo YOGA S730-13IML Wistron LS731 CML 19726-1 Schematic

[Salim Badakhshan]

Lenovo YOGA S730-13IML Wistron LS731 CML 19726-1 Schematic

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Technical Specifications

Parameter	Value
Brand	Wistron Corporation
Project Code	4PD0FD01A001
Board Number	19726-1
PCB P/N	19726
Revision	-1
Date	2019-06-27
Document Number	S731-1
CPU Platform	Comet Lake (CML)
CPU Model	CPU1DWHISKEY-LAKE-GPZZ.00CPU.271
PCH / Southbridge	ComtLake QS
EC / KBC	uvoton KBC
Audio Codec	Realtek ALC3268
BIOS / SPI Flash	SPI Flash ROM
Charging IC	ISL9538HRTZ
Charger Architecture	Battery Charger/Selector
Power IC(s)	SY8288CRAC, RT9610BZQW, RT3602AJGQW, NCP81218MNTXG, RT5797ALGQW, APL5934KAI, AOZ5038QI-05, G5388K11U, RT8237CZQW
RAM Type	LPDDR3
RAM Architecture	Dual Channel LPDDR3 2133MHz
RAM Quantity / Slots	MD x4 pcs
LAN IC	Intel Alpine Ridge DpSMBUS
WiFi / WLAN IC	M.2 2230 WLAN
Card Reader IC	PS8713
USB Hub IC	RTS5455
Audio Amplifier	TAS5766M
Thermal Sensor	Hall sensor

Technical Summary

This Wistron S731-1 schematic, dated June 27, 2019, documents a Comet Lake (CML) platform motherboard with project code 4PD0FD01A001 and PCB P/N 19726 revision -1. The platform utilizes an Intel ComtLake QS PCH paired with a CPU identified as CPU1DWHISKEY-LAKE-GPZZ.00CPU.271. System memory consists of four LPDDR3 modules configured in dual-channel architecture operating at 2133MHz. The embedded controller is an uvoton KBC. Audio is handled by a Realtek ALC3268 codec with a TAS5766M smart amplifier. Power management includes an ISL9538HRTZ battery charger/selector and multiple DC/DC converters including SY8288CRAC, RT9610BZQW, RT3602AJGQW, NCP81218MNTXG, RT5797ALGQW, APL5934KAI, AOZ5038QI-05, G5388K11U, and RT8237CZQW. Storage connectivity is provided via an M.2 2280 SSD interface. The system includes an Intel Alpine Ridge DpSMBUS Thunderbolt controller, an RTS5455 USB Type-C PD controller, a PS8713 USB 3.0 re-driver, and an M.2 2230 WLAN module. A Hall sensor is present for thermal management.

Technician FAQ

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

A: The board number is 19726-1 with PCB P/N 19726, and the project code is 4PD0FD01A001.

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

A: The embedded controller is an uvoton KBC.

Q: What audio codec and amplifier are used?

A: The audio codec is a Realtek ALC3268, paired with a TAS5766M smart amplifier.

Indexed motherboard components

Open a component to see every indexed schematic that uses the same part.

4PD0FD01A001 Project Code 19726-1 Board Number Comet Lake (CML) CPU Platform CPU1DWHISKEY-LAKE-GPZZ.00CPU.271 CPU Model UVOTON KBC EC / KBC ALC3268 Audio Codec ISL9538HRTZ Charging / PD IC AOZ5038QI-05 Power IC APL5934KAI Power IC G5388K11U Power IC NCP81218MNTXG Power IC RT3602AJGQW Power IC RT5797ALGQW Power IC RT8237CZQW Power IC RT9610BZQW Power IC SY8288CRAC Power IC LPDDR3 RAM Type M.2 2230 WLAN WiFi / WLAN PS8713 Card Reader IC RTS5455 USB Controller