lenovo m903 bh5172p v1 5 schematic 1
Technical Specifications
Technical Summary
This motherboard schematic, dated Friday, March 16, 2012, includes a USB power switch (U23, G545B2P8) in a UMSOP8 package, an ESD protection diode (D31, EGA10603V05A1-B), and a USB port connector (J42, SJ2271-2081111011-00697). The audio subsystem features a combo audio jack (Combo-JDET) with headphone outputs (HPOUT-L, HPOUT-R) and microphone input (EXT_MIC). Power management includes +V5AL_USB_B and +V3.3AL rails, with a CHG_LED# indicator and POWER_SW switch. Additional components include a ferrite bead (FB5, 220ohm/100MHZ) and a 100uF/6.3V capacitor (+CAP12).
Technician FAQ
Q: What is the date of this schematic?
A: Friday, March 16, 2012.
Q: What USB power switch IC is used?
A: U23, G545B2P8, in a UMSOP8 package.
Q: What ESD protection diode is used?
A: D31, EGA10603V05A1-B.
Q: What is the USB port connector part number?
A: J42, SJ2271-2081111011-00697.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Date | Friday, March 16, 2012 |
Technical Summary
This motherboard schematic, dated Friday, March 16, 2012, includes a USB power switch (U23, G545B2P8) in a UMSOP8 package, an ESD protection diode (D31, EGA10603V05A1-B), and a USB port connector (J42, SJ2271-2081111011-00697). The audio subsystem features a combo audio jack (Combo-JDET) with headphone outputs (HPOUT-L, HPOUT-R) and microphone input (EXT_MIC). Power management includes +V5AL_USB_B and +V3.3AL rails, with a CHG_LED# indicator and POWER_SW switch. Additional components include a ferrite bead (FB5, 220ohm/100MHZ) and a 100uF/6.3V capacitor (+CAP12).
Technician FAQ
Q: What is the date of this schematic?
A: Friday, March 16, 2012.
Q: What USB power switch IC is used?
A: U23, G545B2P8, in a UMSOP8 package.
Q: What ESD protection diode is used?
A: D31, EGA10603V05A1-B.
Q: What is the USB port connector part number?
A: J42, SJ2271-2081111011-00697.
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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