| Symptom | Likely Cause | Fix | | :--- | :--- | :--- | | Hot at idle | Bad EEPROM/Standby mode disabled | Return for refund | | Hot only with low-ohm IEMs | Amp current overload | Use 75-ohm adapter | | Hot on PC but not on phone | USB port supplying >5.2V | Use a powered USB hub | | Case is hot, but chip is fine | Poor thermal conductivity between chip and case | Open case + thermal pad | | Intermittent cutting out | Thermal shutdown | Undervolt via software limiter |
Here is the definitive guide to cooling down your CX31993 dongle. These fixes range from free (software) to moderate soldering. cx31993 datasheet fix hot
Verify that all external components (resistors, capacitors, inductors) are within their specified tolerances and are correctly soldered. | Symptom | Likely Cause | Fix |
Thermal buildup is often caused by software configurations forcing the chip to work at its maximum limits or hardware design flaws in cheap OEM implementations. Software & Driver Solutions Thermal buildup is often caused by software configurations
Typically, a datasheet for an IC like the CX31993 would include: