DENON DJ SC3900 - Model Name: SC3900 - Brand: DENON DJ - Accessories: With cables - Set of 2 Sold as junk One unit has had the vinyl platter replaced with a 7-inch record. There is no dedicated vinyl for it. It was used normally. Since only CDs were used, USB connections etc. have not been checked. Personally, I found it easier to use after replacing the platter with a record. Sometimes, when the power is turned on, the platter starts spinning at high speed, and the only option is to turn off the power. Therefore, it is sold as junk. For the one with the dedicated black vinyl, CDs only were checked. There were no problems with scratching, etc., but the sound is distorted. If the sound distortion can be repaired, it may be usable, but since it cannot be repaired, it is sold as junk in its current condition. I contacted the manufacturer, but they said they do not have the parts and cannot provide support. For those who can repair it themselves or for parts. This is a junk item, so please refrain from purchasing if you are sensitive to such things. No claims and no returns. Shipping method: Yu-Yu Mercari