Hello, I was wondering if anyone has tackled persinally repairing their dvd players. I recently tore my sony dvp-s550d apart since it was having the classic 'no disc' read. I found the part# to replace the optical lense. I replaced the lens in the unit however the laser is not kicking on. According to the shipped documentation you are suppose to 'turn it on' by desoldering something on the pickup. Has anyone tried a similar procedure or know what I should be looking for? Any help is appreciated.