The HYS3C210-CS is a printed circuit board assembly functioning as a switch-mode power supply. It converts the standard AC mains voltage into the multiple DC voltages required by modern active audio systems. The “CS” in its designation likely indicates a specific revision or variant within a family of power supplies, which includes models such as the and 3B210 .
The is a specific Power Supply Unit (PSU) model commonly used in high-end audio equipment, most notably the Harman Kardon HKTS 200 subwoofer [1].
is unrepairable, DIYers often consider alternatives to revive their HKTS subwoofer: Replacing the HYS3C210-CS Go to product viewer dialog for this item. with a generic 48V48 cap V SMPS and a secondary low-voltage supply.
:
Do not assume pin-to-pin compatibility. Always compare the FB threshold voltage (some are 0.6V, others 0.8V) and the EN pin threshold.
You can find shared technical discussions and circuit overviews on sites like Scribd , which hosts documents related to similar models like the HYS3B210-CS .
Troubleshooting the HYS3C210-CS Power Supply in Harman Kardon Subwoofers The HYS3C210-CS Go to product viewer dialog for this item. hys3c210-cs
Because this specific SMPS model fails regularly across identical vectors, specialized can be found on platforms like eBay. These kits bundle the exact replacement diodes, primary SMD driver chips, ceramic capacitors, and upgraded electrolytic capacitors required to completely overhaul the board. The Replacement Alternative HYS3C210-CS Go to product viewer dialog for this item.
Known to be used in Harman Kardon HKTS 200 and similar HKTS series home theater subwoofers. Symptoms of a Faulty HYS3C210-CS Power Board HYS3C210-CS
Technicians with specialized electronics experience can sometimes repair the board by identifying and replacing failed capacitors or MOSFETs. However, success depends on the extent of the damage. Troubleshooting and Bypass Methods (Advanced) The HYS3C210-CS is a printed circuit board assembly
Think glucose meters, digital stethoscopes, or wearable patches. These devices require high efficiency (up to 95%) to maximize battery life. The HYS3C210-CS’s power-good flag (PG) allows for robust battery monitoring and system reset generation.
Often supplies -7v, GND, and +7v for control circuits. Common Issues and Diagnostics
: 48V DC (used to power the main LFMA 00690 amplifier board). The is a specific Power Supply Unit (PSU)
| Parameter | Value | Conditions | | :--- | :--- | :--- | | Input Voltage (VIN) | 2.7V to 5.5V | Suitable for Li-ion, USB, or 3.3V rails | | Output Voltage Range | 0.6V to VIN | Adjustable via external resistor divider | | Max Output Current | 2A to 3A | Dependent on thermal dissipation | | Switching Frequency | 1.2 MHz (typical) | Allows for small external inductors (0.47µH – 2.2µH) | | Quiescent Current (IQ) | 18 µA (typical) | Ultra-low for battery-powered devices | | Shutdown Current | < 1 µA | EN pin low | | Protection Features | OCP, OTP, UVLO, SCP | Cycle-by-cycle current limiting |
