LA-4142P – Lenovo IdeaPad Y340
LA-4142P is the Compal main board used in the Lenovo IdeaPad Y340 and Lenovo V450. The catalog lists 2 files for it: 1 BIOS file and 1 schematic.
ODM project name: JITR2. First posted in September 2017 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 1
Schematics 1
Board facts
| Board number | LA-4142P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| ODM project | JITR2 |
| First seen | 2017-09-06 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-4142P
- Lenovo IdeaPad Y340
- Lenovo V450
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-4142P board?
LA-4142P is a Compal board number used by Lenovo.
Is there a boardview for LA-4142P?
No boardview has been indexed for LA-4142P yet; the schematic is available on this page.
Which laptops use the LA-4142P board?
Files in the catalog link LA-4142P to the Lenovo IdeaPad Y340 and Lenovo V450.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.