I recently acquired an FZ-10 that has some booting issues. Sometimes it powers up to just a black screen. Other times I will get the 3do logo but it will be in black and white and slightly off-center. I've also tried the composite, RF port, and s-video, but nothing makes a difference. A couple times it has booted up to the proper logo and then gone into the memory manager screen where it functions normally. I should preface all this by saying I've only gotten these different screens to pop up if I disconnect the laser assembly. So far I get no picture when the laser attached. Once when it was in the working state in the memory manager, I pressed down on various parts of the board to see if anything happened and when I pressed on the 1-chip microprocessor (IC660) near the laser assembly area, the bouncing icons froze. This kind of leads me to a bad solder joint somewhere.
With the laser assembly attached and the lid switch closed, the sled will move and the laser will try to focus. If I put a disc in, it will spin at a constant rate, but nothing happens on the screen.
I've done a full cap kit with no change in behavior, but the old caps looked perfectly fine with no leaking so I don't think any traces were corroded.
Any suggestions?