PCB Repair Logs Scramble

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Marquee scramble.jpg
Manufacturer Konami
Year 1981
PCB Image Reserved
Pin Out Konami Classic

Repairer: VectorGlow
Forum Thread: Scramble) PCB Repair

Symptom: Text and sprites appearing in the wrong places on the screen. Landscape scrolling not working at all and no visible ship
Cure: 74LS138 at location 3D had bad outputs - replaced

Symptom: Board only played a brief jingle on power-up and also 'jingles' when starting a game and firing
Cure: Bad 8255 at 1D - replaced

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