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📄 The Mikey ASIC (Atari Lynx)

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📄 The Suzy ASIC (Atari Lynx II)

📄 The Hayato ASIC (Atari Lynx II)

📄 Audio Circuit (Atari Lynx II)

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📄 LCD Enable Pin (Atari Lynx II)

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📄 BQ24193 Battery Charger

📄 MAX77620 CPU Regulator

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📄 Emulators (Xbox Original)

📄 Insignia Xbox Live (Xbox Original)

📄 Disassembly (Xbox 360 Slim)

📄 Identify Model (Xbox 360)

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📄 Re-key DVD Drive (Xbox 360)

📄 Offline System Update (Xbox One)

📄 Replacing Hard Drive (Xbox One)

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📄 Schematics (Xbox One X)

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📄 Schematics (ZX Spectrum 16/48k)

📄 Model Versions (ZX Spectrum 16/48k)

📄 Power Circuit (ZX Spectrum 16/48k)

📄 ULA (ZX Spectrum 16 48k)

📄 Z80 CPU (ZX Spectrum 16 48k)

📄 Schematics (ZX Spectrum 128)

📄 Model Versions (ZX Spectrum 128)

📄 Power Circuit (ZX Spectrum 128)

📄 40077 Gate Array (ZX Spectrum 128)

📄 Z80 CPU (ZX Spectrum 128)

🕹️ Game Development

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🛠️ Send In Repair Service

💯 Prestige Shells & Consoles

📄 Will the Prestige shells fit AGS/Original screens?

📄 What finish are the Pearl series shells?

📄 What materials are finish are the Prestige shells made from?

🔋 CleanJuice Battery Upgrade

📄 What do the LEDs mean on the CleanJuice?

📄 How will I know when the battery is low?

📄 Do I need to solder or cut the CleanJuice?

📄 How long will the CleanJuice last?

🔊 CleanAmp Audio Amplifier

📄 CleanAmp, PureSilence and Dehum. What's the difference?

📄 I can hear noise after adding CleanAmp?

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Repair & Schematics / ZX Spectrum 128 / 40077 Gate Array (ZX Spectrum 128)

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40077 Gate Array (ZX Spectrum 128)

Updated Mar 15, 2026 · 2 min read · 0 viewing

Power Circuit (ZX Spectrum 128) The ZX Spectrum 128 gets three power rails directly from the external power supply . There are no...

Z80 CPU (ZX Spectrum 128) After the 40077 Gate Array is checked and you are seeing something on screen (even it if is messed...

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