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QW2889F IC Schematic Pinout Repair Guide for Emergency Light Circuit QW2889F IC schematic and pinout guide explaining AC detection, battery charging, LED drive, protection, wiring and emergency light troubleshooting. Q…
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AC6936D IC Pinout Schematic Diagram and Datasheet Guide AC6936D 32-pin IC pinout reference showing power, Bluetooth RF, audio DAC, microphone, USB, I2C, oscillator, and ground connections for circuit repai…