No audio\visual

[Headly]

I am looking at an old ps2 of a friend of mines. Its a v3. He gave it to me for free to mess around with because he bought a new one. The problem is that it has no audio or visual and the duisc does not spin. I have already checked the cables. Any clue where to begin?

[Headly]

I have also noticed that the screen does flicker briefly when going to or from standby, but thats it. Does not even go to a black screen. I have also noticed that the eject button seems a little slow to turn on. I have gone back through and rechecked the cables for continuity and they are all fine.

[TylerDurden]

The laser itself may be dead.




Tyler!

[AZSupraKING]

Would that really cause these bad of symptoms. i would expect that if the laser was bad it would still run through the opening sequences and amybe stick at the browser screen.

[TylerDurden]

Wait a minute. Sorry I didnt read this correctly as I was in a hurry. Have you tested with a known working RCA cable? Try wiggling the plugin in the back.

Disregard my old statement for now.





Tyler!

[Headly]

I only have 1 RCA cable the same that I use for my own PS2. Checked the connection and seems good. The other problem that would have nothing to do with the RCA is that the disc will not spin.

[TylerDurden]

Well Im no expert in repairing broken consoles but it seems to me that maybe somethin is fried or dead.





Tyler!

[Headly]

I did a little research and found that a completely dead laser will keep the disc from spinning, but nothing was mention if it will keep the screen displaying. I'm definitly going to look into this further before I try and get a new laser.

[TylerDurden]

Well I wish you the best of luck. Please post your results, Im sure there are more than a few people interested.





Tyler!

[Headly]

Not an update just more info for anyone who can help. I have read that when a laser goes bad the disc will often do a 1\4 spin and do nothing. I have removed the top of the DVD drive and the laser turns on for like 1\20th of a second and then nothing. The drive does not even try to spin.

[Headly]

I can't find any signs that anyone has tried to solder to this board so I doubt that anything has been fried that way, though I am sure that other things can and do happen. However, I did upon even more inspection find damage to the laser. It seems that the screwhead on the CD pot has been almost completely removed. There is nothing remaining of the part that the phillips head would fit into. All that is left is a tiny (2mm at most) piece of metal around the edge. Most of the contact surface underneath is clearly visible. This does answer my laser not working and leads me to beleive that it is the root of the disc not spinning problems. Could this also cause the screen not to display at all?
When I start the TV remains on a blue screen as though no signal is being sent.

[Headly]

You can find a pic of the laser here If anybody has any tips on how to get better close up pics of the PS2 let me know.

[ottoman]

Yeah, u can unplug the laser and flash a ps2 up and u still get audio and visual and the laser does a quarter turn.

That quarter turn thing is only providing the laser has power. If it not even doing that then I would suspect that there is no power to laser.

Further more if the ps2 has no audio or visual then ther is a lot of juice missing somewhere.

You get a st/by light and eject light so not totally dead.

Does the tray eject?

Does the fan run when switched on?

There r a lot of surface mount fuses on the motherboard and It sounds like one of these have gone.

Have a look on google for a diag of fuses, there r several about and check the continuity of these fuses.

Could also be a power supply board problem. e.g the supply is stable enough to run leds,fans,eject systems but not to run logic on motherboard and laser controller.

Hope this helps, let us know how it goes!!

[ottoman]

Just looked a laser picture. The cd laser intensity pot does look shotaway.

Best way ahead:

Disconnect the laser totally, does the ps2 audio and visual work?

Check surface mount fuses on motherboard. Has faulty laser blown one of these?

Good luck.

[Headly]

Thanks for the help ottoman. Just a note the laser does blink once when first reset, then nothing. I have yet to find a good list of fuses, but still looking. I'll try it with the laser unplugged a little later and see what happens.