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Game Boy -related schematics

Licensed under Creative Commons Attribution 4.0 International.

Exceptions:

  • MGB-xCPU/MGB-LCPU-02.jpg: assumed to be in public domain based on the readme.txt file

Used libraries:

Game Boy Pocket mainboard (MGB-CPU-01, MGB-ECPU-01, MGB-LCPU-01, MGB-LCPU-02)

Traced based on high-res scans by Alex a.k.a. ArcadeTV.

Components were identified by desoldering and measuring everything on MGB-ECPU-01 and MGB-LCPU-01 boards.

Game Boy Pocket mainboard schematics

Traced MGB-LCPU-02 board SVG

Raw notes of MGB-ECPU-01 board components

Game Boy Light mainboard (MGL-CPU-01)

Components were identified by desoldering and measuring everything on an MGL-CPU-01 board.

Game Boy Light mainboard schematics

Traced MGL-CPU-01 board SVG

Raw notes of MGL-CPU-01 board components

Game Boy Advance SP AGS-001 mainboard (AGS-CPU-11)

Components were identified by desoldering and measuring everything on a AGS-CPU-11 board.

Note: there are several versions of Advance SP mainboards, and these schematics have accurate information only for AGS-CPU-11

Game Boy Advance SP AGS-001 mainboard (AGS-CPU-11) schematics

Raw notes of AGS-CPU-11 board components

Traced AGS-CPU-11 board SVG

Original Game Boy LCD board (DMG-LCD-06)

Components were identified by desoldering and measuring everything on a DMG-LCD-06 board.

Original Game Boy LCD board (DMG-LCD-06) schematics

Original Game Boy DC/DC power board (DC CONV DMG / DC CONV2 DMG)

Components were identified by desoldering and measuring everything on one board of each type (A/B/C/D).

There are several versions of the regulator board, but the board label is not enough to distinguish the different versions. gbhwdb uses unofficial type A1/A2/A3/B/C/D designation, which is also used here. Identify your board by looking at the following board version comparison photo:

.

Schematics:

Visual component references:

Known differences:

  • A1 vs A2 vs A3: one trace is laid out slightly differently at the bottom of the board
  • A vs B: exactly the same circuit, but the board layout has been redone and small components now come in MicroMELF packages (vs 0603 imperial)
  • B vs C: almost exactly the same circuit, but the input filter no longer has an inductor, and many component values have been slightly changed. Schottky diode switched from surface-mount SOT-23 package to through-hole DO-34.
  • C vs D: main circuit and components are identical, but an extra undervoltage lockout (UVLO) circuit has been added and board layout has been redone once again

Game Boy Pocket DC/DC power boards

Components were identified by desoldering and measuring everything on one board of each type (A/B).

Type A (LSEP01088A1)

There are actually at least three different variants of this board with some minor layout adjustments, but the same schematics apply to all of them.

Type B

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