Hys3c210cs Power Supply Free [upd] | TOP |

Open the unit and look for bulging capacitors (tops that are rounded instead of flat) or burnt marks on the PCB. A single "blown" capacitor can often be salvaged from other old electronics. 2. The Paperclip Test (Diagnostic)

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For a second, nothing happened. The room remained dark. The alarm continued its death knell. Open the unit and look for bulging capacitors