SGB: Unit #1 [gekkio]

Stamp on case
20B

Mainboard

Board type
SGB-R-10
Manufacture date
August/1994
Circled letter(s) on board
M
Letter at top right
C

Chips

ChipTypeManufacturerDateLabel
U1CPUSGB-CPU 01SharpWeek 34/1994SGB-CPU-01 © 1994 Nintendo Ⓜ 1989 Nintendo JAPAN 9434 7 D
U2ICD2ICD2-R????Week 34/1994Nintendo ICD2-R 434 171
U3Work RAMLH52A64N-YLXlink (?)Week 32/1994LH52A64N-YL Xlink JAPAN H432 01 C
U4Work RAMLH52A64N-YLXlink (?)Week 32/1994LH52A64N-YL Xlink JAPAN H432 01 C
U5ROMSYS-SGB-2????Week 31/1994SYS-SGB-2 © 1994 Nintendo 9431 R95
U6CICF411ASharpWeek 32/1994F411A © 1990 Nintendo 9432 a