Cable to connect playstation 2 to VGA port

Because the PS2 is a highly integrated machine, further disassembly will probably do less good than harm.

Depending on how wet you got the thing: To facilitate drying, you can put the unit in a 40°C oven for a while. Think a few hours. A blow dryer might work too, but that is more risky. The point is to get the whole thing warm, not hot, all the way through to help the water evaporate.

If any water got onto the CD-drive assembly, you may have to apply a little bit of silicone grease on the guide rods and spindle. Do not use simple oil, it will harden up and destroy your reader. Rather dont do anything than use the wrong grease.

I would ignore the leftover piece. If it is important, you will notice where it goes.

I have had similar issues with older game consoles attached to my projector with long cable runs. Your TV will attempt to switch to another input if it doesn't detect a high enough signal on the current input.

Your PS2 could be getting old and the video output power may fluctuate too much to maintain a consistent signal on your digital TV. On older analog televisions, you probably wouldn't even notice this (the picture might just get dim momentarily). I would guess that your friend's tv is analog?

A few things you might try.

1. See if your TV has a "signal lock" option. This will prevent it from automatically searching other inputs when it thinks it loses the signal. I tried looking up the manual for your television on Samsung's website but I could not find the LE32B450 listed.
2. Try to minimize any extension cables you might be using. The longer your cable, the more power you will lose.