One weekend, I tried to play music through my Logitech Z623 speakers, but silence filled the room. The power light was on, yet no sound came out, no matter how high I turned the volume. At first, I thought the speakers had completely failed. Instead of rushing to replace them, I searched for solutions and found Logitech manuals - https://manuals.online/logitech where the Logitech instruction of use showed that connection and volume settings are often the real culprits.

The Logitech quick start guide recommended inspecting every cable. I unplugged the audio jack, cleaned it, and reinserted it firmly into both the computer and the speaker input. To my surprise, the static vanished, and the connection felt more secure.

According to the Logitech owner’s manual, the system volume and speaker volume must both be balanced. My PC’s audio had been muted after a recent update, which explained the silence. Once I unmuted and adjusted both levels, the speakers worked perfectly.