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MGB: [iceboy] #6 - MH12297427

Color: green
Release code: C/MGB-JPN
Assembly date: February/1997
Has LED: no

Mainboard

Board type

MGB-ECPU-01

Color of bottom half

white

Manufacture date

January/1997

Number pair on board

1-1

Stamp on board

702-3702

Circled letter(s) on board

Extra stamp on front

Extra stamp on back

Label on power board

6Z4

Stamp on speaker

7(?)

LCD Panel

Manufacture date

December/1996

Panel label

D61214
D61218

Extra label

Row cable label

Chips

	Chip	Type	Manufacturer	Date	Label
U1	CPU	CPU MGB	Sharp	Week 51/1996	CPU MGB Ⓜ © 1996 Nintendo JAPAN 9651 D
U2	Work RAM	LH52A64N-PL	Mosel-Vitelic	Week 49/1996	LH52A64N-PL MOSEL-VITELIC JAPAN N649 04 C
U3	Amplifier	IR3R53N	Sharp	Week 51/1996	AMP MGB IR3R53N 9651 C
U4	LCD Regulator	IR3E02	Sharp	Week 49/1996	DMG-REG IR3E02 9649 h
X1	Crystal	KDS 4.194	Daishinku	Week 51/1996	KDS 9651 4.194
-	LCD Column Driver	LH5077 B1	Sharp	Week 42/1996	LH5077 B1 6421
-	LCD Row Driver	LH5076 E	Sharp	Week 40/1996	LH5076 E 6400

Notes

- Display cover fell off:
    -> Cleaned old glue
    -> Attached replica part
- LCD polarization filter is burned/inverted in the middle:
    -> TODO: Try to replace (LCD has no missing rows/cols, thou)
- Battery acid distributed on the PCB
    -> Cleaned
- Battery contacts are corroded by battery acid:
    -> Milled off the corrosion
- Sticker on the back was soaked in battery acid and disintegrated
    -> garbage
- Two shell screws were heavily corroded.
    -> Replaced them with tri-wing replicas
- Many buttons don't work: Right, Down, A:
    -> TODO: Investigate
- Gets random button presses, like if an input is floating:
    -> TODO: Investigate

Misc

CPU works: yes

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Generated: 2024-02-22 12:05 PM +01:00