Recently, my Marantz cd player keep have problem reading disc, so decide to replace with new laser len to keep it playing for a few more years. The replacing method is quite easy just need screw driver and careful when disassemble all the parts. Here it goes....
1) Removed the two solder bump from the new CD laser len (this is to prevent static when ship by vendor)

2) It should look like this after dis-solder.
