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afterdawn.com > forums > consoles > ps2 - general discussion > ps2 v7 test point for oscilloscope - laser adjustment
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PS2 V7 test point for oscilloscope - laser adjustment
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acbadgers
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_ 		5. July 2006 @ 09:44 _ Link to this message    Send private message to this user   
Does anyone know what the test points are for adjusting the laser with an oscilloscope?? A picture would be great.
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Q4i
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_ 		5. July 2006 @ 23:17 _ Link to this message    Send private message to this user   
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acbadgers
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_ 		6. July 2006 @ 07:25 _ Link to this message    Send private message to this user   
Thanks for the effort Q4 but I need the test points on the board to hook up an oscilloscope. I've seen pictures showing older versions of PS2 that show this. I've tried adjusting the pots with a meter and I'm having no luck on the DVD.
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Q4i
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_ 		6. July 2006 @ 23:29 _ Link to this message    Send private message to this user   
A fuse diagram for the board might be able to at least point you in the right direction. Now I'm curious though as to why you need it?
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acbadgers
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_ 		7. July 2006 @ 06:42 _ Link to this message    Send private message to this user   
Hello again Q4i,

If you look at this link it will show you what I'm talking about. It shows how to use an oscilloscope to adjust the pots to achieve the desired waveform for the CD and DVD. Also shows where to connect the O scope "test points" but unfortunately for the older versions.

http://www.modchipstore.com/support/index.php?_m=knowledgebase&_a...
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Q4i
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_ 		11. July 2006 @ 20:34 _ Link to this message    Send private message to this user   
The good thing about a scope is that it won't ruin any of the electronics if used properly, so trial and error can't hurt. Also. if it comes to it I can say that I have made the adjustments, minus an oscilloscope, with great success and no problems.
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acbadgers
Suspended due to non-functional email address
_ 		12. July 2006 @ 05:18 _ Link to this message    Send private message to this user   
I didn'have any luck finding the test points so I finally gave in and bought a new one. I think the laser was fried. I tried for days adjusting those pots and had the CD working fine, just couldn't get the DVD.
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Q4i
Suspended due to non-functional email address
_ 		14. July 2006 @ 18:57 _ Link to this message    Send private message to this user   
That sucks. It's too bad that it didn't work out better for you, but on the bright side you shouldn't have any problems with the new one in the future.
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