There are two possible causes.
- Is an analog player with an internal phono equalizer connected? When using an analog player with an internal phono equalizer, connect it to the [LINE] terminals. For details, see "Connecting input terminals" in the operating instructions. If the analog player with internal phono equalizer is equipped with a PHONO/LINE selector switch, switch it to PHONO.
- Is a computer sound card (audio interface) connected between the analog player and this unit? If the computer sound card's output has a line level, connect to the [LINE] terminals. For details, see "Connecting input terminals" in the operating instructions. If the analog player is equipped with a PHONO/LINE selector switch, switch it to PHONO.