A Not Sony PS2 Slim AC Adaptor can be the culprit of video noise and no signal on your TV set!!! –
Some time ago I bought a PS2 Slim (slimline) SCPH-79001 console.
Then I connected my console to an HDTV set by a composite cable and everything was fine (i.e. within the expect limits of quality of such connection).
But as soon as I tried connect my console to an HDTV set by a component cable (the YPbPr one) in order to improve the quality I was surprised by an irritating video noise and sometimes worse: a "no signal" video issue.
I thought, my console and/or my component cable were(was) the culprit(s)! But... I was wrong.
The culprit, in fact, it was a unbranded = second class = cheap = low profile = PS2 Slim AC adaptor I had, which wasn't delivering the enough and proper amperage... Maybe it was doing even worse: Delivering an unstable amperage (I haven't a multimeter, so I can't assure you this, just infere).
Well, my problems has gone as soon as I got an used Original Sony PS2 Slim AC adaptor SCPH-79100 (which delivers the proper 8,5 V DC and 4,5 A to my console).
Summarizing: Avoid problems/headaches for your SCPH-7xxxxx PS2 slim models by enpowering them with an Original Sony PS2 Slim AC adaptor like SCPH-79100 I own or the SCPH-70100 one (but pay attention, there are defective ones around there that should be recalled by Sony PlayStation®2 AC Adaptor Replacement Program - PlayStation.com).
Hope this help someone.
Last edited by doctorxyz; 07-05-2012 at 12:39 AM.
Reason: Adaptor and not adapter
doctorxyz's PS2 & PS3 stuff: (http://psx-scene.com/forums/f257/doctorxyzs-ps2-ps3-stuff-101348/)