Power Supply: Hys3c210-cs

Check for bulging or leaking electrolytic capacitors. Specifically, the high-voltage capacitor (e.g., 3.3µF 400V) is a known failure point that can cause the unit to stop functioning.

The is a specialized switching power supply (PSU) unit primarily known for its role in high-end audio equipment, specifically within Harman Kardon active subwoofers like the HKTS 200 model . As a critical component of the internal amplifier system, it manages the conversion of mains voltage into the stable DC rails required to drive heavy bass loads. Technical Specifications and Capabilities hys3c210-cs power supply

Typically outputs 48V DC to power the Class D power amplifier. Check for bulging or leaking electrolytic capacitors

Often indicates a failure in the +/-7V standby circuit , preventing the main controller from booting the system. Troubleshooting and Repair Tips As a critical component of the internal amplifier

The HYS3C210-CS is designed for high-efficiency power delivery in a compact form factor. While exact public datasheets are often proprietary to Harman, technical teardowns and repair forums reveal the following typical output configurations: