v7 eye pattern test point.

**unit01** · 07-31-2003,11:24 PM

Hi all,

Could some cool post a picture of the 'eye pattern'

test point on the PS2 motherboard version 7 gh-19 or gh-22 I think.

I have just bought an oscilloscope and have pics for most of the

other boards up till v5.

Any help appreciated

John

**ShadowKnyght** · 08-02-2003,10:51 AM

ummm?? shouldn't they all be pretty much the same? (possibly niave comment here... never had the need to check it)

I have a picture of an "eye-pattern" but it does not mention the station model - just the scope settings - 20mV/div 0.2uSec /div

Pretty much just looks like a bunch of offset repeating sine waves...

**unit01** · 08-05-2003,09:08 PM

Hi ShadowKnyght,

Thank you for your reply.

I am looking for the phyical location on the version 7 motherboard where I can connect the oscilliscope.

I understand the waveform will look pretty much the same on all the models.

John

**ShadowKnyght** · 08-06-2003,04:17 AM

in that case - the connection points will also be similar - one thing to remember - as long as you don't short two points together when probing - you can check between ground and any point until you see what you are after - so a quick search in the general area will not harm your station as long as you are careful...

But as I have not done this check before - this may take a while - if the reference is not ground and is instead a diffrential between two points not referenced to ground... in which case you could be searching for a while - but that is how one learns new things...

**ShadowKnyght** · 08-07-2003,02:45 AM

check out this page it may be helpful:

http://www.ps2.nu/playstation-2-lase...cilloscope.asp

**unit01** · 08-25-2003,03:42 AM

Hi ShadowKnyght,

Thank you for that web site has alot of info

John

shang504 · 03-17-2004,03:56 AM

Where you able to get the eye-pattern on the scope? If so, where you able to keep the pattern continuesly on the scope. Problem with my test is I only see the pattern for 1-2 seconds, just when it recognizes the cd/dvd rom and once it starts to read it turns into fine lines going up and down across the scope. When the CD/DVD stops reading I get a flat line going across the scope.

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