Hi! My name is Squall9999 (does my name ring a bell?) This is my 5yr old playstation

*shows the unit*

I had the same problem as you, and luckily I fixed the problem!! well sort, heres my story:

*plays the violin*

My sister, waaay too little sister was fed up watching VHS and decided to play PSone, then the problem occured, it was a disaster, the picture was showing all lines and some colors, the sounds were producing such high tones you know like iiiiiiiiiiiii. From there on, I've gone beserk, I don't know what to do, then I checked the wirings.......... hehe well what do you know, the problem was there, the audio was in the video and the video was in the audio

I'm not good at hardware, but why not as wll check out these possibilies

Just like mine, the audio video was crossed over
The lens is not clean or .................... is missing?
The TV!! is it still working? :lol:
.......hmmmm maybe its hopeless, you have a 10 yr old PS and its still standing?, maybe it got osteoporosis or something, maybe your PS needs to be rapaired at the repair shop

This is all I know