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DMG: [iceboy] #8 - G01054493

Color: off-white
Screws: phillips
Assembly date: March/1989

Mainboard

Board type: DMG-CPU-01
Stamp on board: 903-23
Circled letter(s) on board: -
Extra label: 3

LCD Board

Board type

DMG LCD-01

Manufacture date

1989

Stamp on board

903-23

Circled letter(s) on board

Number pair on board

LCD panel label

S 890201

LCD row cable label

890228

LCD panel date

February/1989

Power Board

Board type: A1
Manufacture date: 1989
Label: DC CONV DMG

Jack Board

Board type: DMG JACK 01
Extra label: -

Chips

	Chip	Type	Manufacturer	Date	Label
U1	CPU	DMG-CPU	Sharp	Week 7/1989	DMG-CPU LR35902 8907 D
U2	Video RAM	LH5164LN-10	Sharp	Week 44/1988	LH5164LN-10 SHARP JAPAN 8844 3D
U3	Work RAM	LH5164LN-10	Sharp	Week 44/1988	LH5164LN-10 SHARP JAPAN 8844 3D
U4	Amplifier	IR3R40	Sharp	Week 6/1989	DMG-AMP IR3R40 8906 A
X1	Crystal	D419	Daishinku	January/1989	D419A9
-	LCD Column Driver	LH5077 F	Sharp	February/1989	LH5077 F 902
-	LCD Row Driver	LH5076 F	Sharp	February/1989	LH5076 F 902
-	LCD Regulator	IR3E02	Sharp	Week 6/1989	DMG-REG IR3E02 8906 A

Notes

- LCD had massive amount of missing columns:
    -> TODO: try to repair
    -> The columns that are visible are always nearly fully black.
       Brightness potentiometer seems to have close to no influence.
- Display cover was missing
    -> Cleaned old glue
    -> Attached replica part
- LCD has scratches
    -> Maybe fixable by replacing polarization filter
- Link port cover was missing:
    -> Attached replica part
- Battery cover was missing:
    -> Attached replica part
- One shell screw was missing:
    -> Replaced
- L&R knobs of the D-Pad its silicone pad are very worn and will
  soon fall off.

Misc

CPU works: yes

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