Reminder In order to better serve our customers and ensure that they can perform well after installation, please pay attention to the following points. 1.Laser head installation knowledge: When the laser head is shipped from the factory, in order to prevent electromagnetic interference, it is generally provided with a protective solder joint (a large solder joint on the optical head circuit board or on the flexible cable), which needs to be soldered with a soldering iron before the optical head is mounted. Otherwise the laser head will not work properly. 2.Note before buying: Please make sure that you have enough ability to replace the laser head and other accessories you need, otherwise: please be sure to find a professional to replace after you purchase our products. Test! So as not to cause damage to the product itself and your machine. PD-2 New Laser Len For Denon DVD-A1XVA Player Optical Pickup DVD A1XVA Laser Head Applicable To: For Denon DVD-A1XVA Packing List : 1PCS*Laser Len For Denon DVD-A1XVA Note : There may have other version's laser , so make sure your laser should same as our listing before order . if you sure , contact us for detial .