Zip archive for the Apple logic board 820-00244, internal project X260, with schematic document number 051-00532, marked MLB CBB and dated 09/10/2015.

Small RAR archive named M57 DVT MLB, 174 KB, with no brand stated. MLB normally stands for main logic board and DVT for design validation test, an early pre-production…

Small RAR archive, 174 KB, labelled M57 DVT MLB, where MLB means main logic board and DVT means the Design Validation Test build stage.

Boardview file for the R400, presumably the ThinkPad R400, on the MLB3I-A board, delivered as a compact 564 KB ZIP archive.

Boardview for Apple logic board 820-01521, tagged PJJ MLB and Pre-EVT2, in BRD format at 581 KB.

Archive for the Apple MacBook Air A1370, with MLB K99 in the name, MLB being Apple's term for the main logic board and K99 the project code.

RAR archive holding the main logic board schematic in PDF form for a device coded J113, MLB meaning main logic board. No brand or board revision is stated in the name.

RAR archive labelled M57-DVT-MLB, where MLB stands for main logic board and DVT for the design validation test stage, a naming style used in Apple engineering documents.

Small 140 KB RAR archive for Apple main logic board 820-01521, labelled PJJ MLB Pre-EVT2.

Boardview archive in ZIP format for the Apple X2819 MLB logic board, number 820-03286, schematic reference 051-09344, about 247 KB.

Boardview for the J80G MLB, the main logic board identified by that code in the file name.

Schematic in PDF format for the Lenovo ThinkPad T400 on the MLB3I-9 board revision, compressed to a 954 KB RAR archive.

Apple A1342 logic board schematic archive, code name K87 MLB, drawing 051-8561, PCB 820-2877, revision C00; the name also contains the token 635c2, whose meaning is…

Power sequencing diagram for Apple MLB 820-01598, project code J213, in a compact 72.2 KB PDF; the LO suffix likely denotes a reduced-quality version.

Apple logic board schematic for 820-00928, with MLB_BAFFIN2 in the name indicating the main logic board design, likely tied to an AMD Baffin GPU variant.

Schematic of the main logic board for the iPhone 8 Plus, identified in the name by its D21 code, in a 1.91 MB PDF. MLB stands for main logic board.

RAR archive for an Apple MacBook Pro main logic board, identified by the tokens FA255 and M42C, with MLB meaning main logic board.

Boardview for an R400 board marked MLB3I-A, stored in the CST format at about 1.33 MB; the BDV tag in the name indicates it was originally a boardview file.

Apple MacBook logic board schematic for project code M42C, labelled MLB (main logic board), in a 1.21 MB RAR archive.

Boardview for a main logic board, marked only as mlb with the project code j140; the name gives no board number, revision or brand.

MacBook Pro A1278 package for the K90I main logic board, MLB being Apple's term for the motherboard, in a 1.63 MB RAR.

Apple iMac 27-inch A1419 logic board documentation for project D8, labeled MLB ULTIMATE, document 051-9505 at revision 8.0.0.

Boardview in .bv format for the M57 main logic board, tagged DVT, a design validation test build, and MLB, meaning main logic board.

Apple boardview in .brd format for logic board 820-01598, project J213, as labelled in the name.

Apple iMac main logic board (MLB) schematic for project M38A at the DVT (design validation test) stage, document 051-7148, revision 13.

Schematic diagram in PDF form for Apple logic board 820-00928, labelled MLB_BAFFIN2 in the file name.