Chosen Solution

Hi everyone, I bought a used PlayStation 2 Slim (SCPH-77001) and it does not recognize any discs. I did the following: With the old optical drive, I cleaned the lenses and manually pressed down on the lid sensors. Unfortunately, neither the laser nor disc motor moved at all. Both front and rear lid sensor are attached to the motherboard and look perfectly fine.I checked for continuity on all 3 ribbon cables. Fortunately, the cables are not broken.I bought a new optical drive from Richspsxparts with solder protection. I removed the protection and installed it into the Playstation. However, discs are still not being recognize.I followed this forum (Optical drive not spinning up) and none of the solutions helped me. Regarding solution #1 in the 2nd post, does anyone know where exactly am I suppose to solder a wire? Any suggestions or advice will be greatly appreciated! P.S. The PlayStation does turn on and its AV output works. I also added pictures at the bottom. Top of motherboard:

<- Ribbon cable holder for laser and motor

Bottom of the motherboard:

i believe that the optical drives board is married/paired with the mother board. youll want to ensure that the drive purchased is made for your exact model of playstation and then swap the driver board from the old drive to the new. this should solve your issue.