Schematic Lenovo Thinkpad L14 Gen 3 LG4-1 AMD LT5-1 AMD 213039-1 Schematic

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Lenovo Thinkpad L14 Gen 3 LG4-1 AMD LT5-1 AMD 213039-1 Schematic




Technical Specifications

ParameterValue
BrandLenovo
ModelL14 L15 AMD
Motherboard ManufacturerWistron Corporation
Project Code4PD0PZ010001 / 4PD0PZ01F001
Project NameLG4-1 AMD / LT5-1 AMD
Board Number213039
Revision-1
DateWednesday, April 06, 2022
Document NumberA31106
CPU PlatformAMD Ryzen Barcelo
Platform AliasGolem / Talos (L14 / L15 Gen3)
EC / KBCNPCX997KA0BX / NPCX997KA1BX
Audio CodecRealTek ALC3287
BIOS / SPI FlashSPI BIOS1, SPI BIOS2
Charging ICBQ25710
Charger ArchitectureBattery Charger
Power IC(s)MP2945G, MP86901, RT8231AGQW, TPS51393PRJE, TPS51395PRJE, APL5934KAI, RT5753ALGQW, SY8386RHC
RAM TypeDDR4 SODIMM
RAM ArchitectureCHANNEL A, CHANNEL B
LAN ICRTL8111EPV, RTL8111HN
WiFi / WLAN ICHarrison Peak 1216, Garfield Peak 1216
HDMI Level ShifterPS8409A
Card Reader ICMedia Card (SD)
USB Hub ICPS8719E
Thermal SensorNCT7718W
USB-C ControllerTPS65994ADFE1.1S-BQFN24B
USB-C ControllerU7202
GPU TypeAMD Ryzen Barcelo (Integrated)
Graphics ArchitectureDDI-A (eDP x4), DDI-B 5.4GT/s

Technical Summary

This Wistron-manufactured Lenovo L14 L15 AMD motherboard, project codes 4PD0PZ010001 and 4PD0PZ01F001, is built around the AMD Ryzen Barcelo platform with integrated graphics. The board number is 213039, revision -1, documented under number A31106 dated April 6, 2022. The embedded controller is an NPCX997KA0BX or NPCX997KA1BX, and the audio codec is a RealTek ALC3287. Two SPI BIOS flash ICs are present. Power management is handled by a BQ25710 battery charger and multiple DC/DC converters including MP2945G, MP86901, RT8231AGQW, TPS51393PRJE, TPS51395PRJE, APL5934KAI, RT5753ALGQW, and SY8386RHC. Memory configuration uses DDR4 SODIMM modules across Channel A and Channel B. Networking is provided by RTL8111EPV and RTL8111HN LAN controllers, with Harrison Peak 1216 or Garfield Peak 1216 WLAN modules. The HDMI interface uses a PS8409A level shifter, and USB-C connectivity is managed by a TPS65994ADFE1.1S-BQFN24B controller and U7202.

Technician FAQ

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

A: The embedded controller is an NPCX997KA0




Technical Specifications

ParameterValue
BrandWistron Corporation
ModelL14/ L15 IO BD
Motherboard ManufacturerWistron Corporation
Project CodeL14-1 AMD: 4PD0PZ010001 / L15-1 AMD: 4PD0PZ01F001
Board Number213602/ 213603
Revision-1
DateThursday, March 10, 2022
Document NumberA419
Platform AliasAMD/ INTEL PLATFORM BOM CTRL / AMD support modern standby
Card Reader ICGENESYS / GENESYS CTRL IC DET PIN BOM CTRL
USB Hub ICPS8719

Technical Summary

This Wistron L14/L15 IO BD schematic, document number A419 revision -1 dated March 10, 2022, covers the I/O board for both L14-1 AMD (project code 4PD0PZ010001) and L15-1 AMD (project code 4PD0PZ01F001) platforms, with PCB part numbers 213602/213603. The board integrates a GENESYS card reader controller IC with a dedicated detection pin and BOM control, alongside a PS8719 USB 3.0 re-driver for USB4/USB 3.0 connectivity. The platform BOM control supports both AMD and Intel platforms, with AMD specifically supporting modern standby. The I/O board connector (CN1, HRS-CON30-9-GP020.K0032.0030) interfaces with the mainboard for signals including USB 3.1, PCIe, card clock, and reset lines. Several EC components (EC301, EC302, EC303) are marked as "Do Not Stuff" on this revision.

Technician FAQ

Q: What is the project code and board number for this I/O board?

A: The project codes are L14-1 AMD: 4PD0PZ010001 and L15-1 AMD: 4PD0PZ01F001, with PCB part numbers 213602/213603.

Q: What card reader controller is used on this board?

A: The board uses a GENESYS card reader controller IC with a dedicated detection pin (CARD_DTCT) and BOM control.

Q: What USB re-driver is used on this I/O board?

A: The board uses a PS8719 USB 3.0 re-driver for USB4/USB 3.0 connectivity.

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




Technical Specifications

ParameterValue
BrandWistron Corporation
ModelL14L15 PWR BD
Motherboard ManufacturerWistron Corporation
Project CodeL14-1 AMD: 4PD0PZ010001 / L15-1 AMD: 4PD0PZ01F001
Board Number213061 L14 / 213604 L15
Revision-1
DateThursday, March 10, 2022
Document NumberA4
PCB Number213601/ 213604

Technical Summary

This Wistron Corporation L14L15 PWR BD schematic, revision -1, dated March 10, 2022, covers the power button board for the L14 and L15 AMD platform projects. The board numbers are 213061 for L14 and 213604 for L15, with PCB part numbers 213601 and 213604. The project codes are L14-1 AMD: 4PD0PZ010001 and L15-1 AMD: 4PD0PZ01F001. The schematic includes a block diagram and details for the IO board connector, fingerprint/CCD connector, and power switch button with power and fingerprint dual LEDs. A board detection mechanism uses a 100Kohm pull-high or pull-down resistor on pin 7 to differentiate between L14 and L15 models.

Technician FAQ

Q: What are the board numbers for the L14 and L15 power boards?

A: The board number is 213061 for L14 and 213604 for L15.

Q: How does the schematic differentiate between L14 and L15 models?

A: Pin 7 of the IO board connector uses a 100Kohm pull-high resistor to 3.3V_S5 for L14 detection and a 100Kohm pull-down resistor to GND for L15 detection.

Q: What is the PCB part number for this power board?

A: The PCB part numbers are 213601 and 213604.

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

Attachments

  • Lenovo Thinkpad L14 Gen 3 LG4-1 AMD LT5-1 AMD IO Schematic.pdf
    187.9 KB · Views: 9
  • Lenovo Thinkpad L14 Gen 3 LG4-1 AMD LT5-1 AMD PWR Schematic.pdf
    138.6 KB · Views: 8
  • Lenovo Thinkpad L14 Gen 3 LG4-1 AMD LT5-1 AMD 213039-1 Schematic.pdf
    2 MB · Views: 10
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