Your DVD potentiometer pot on the back of the PS2 laser lens needs to
be readjusted. Some people will try to tell you it's out of alignment
but if that was the case it would not read CD's. Some people will try
to tell you the laser lens is bad. If that was the case it would not read
CD's. On the back of the laser lens are two potentiometer pots. In
english? Two lil screws that are turnable. One controls the power of
the DVD laser one controls the power of the CD laser.
http://www.cyber-mag.com/station/laserV9.htm
That link will give you pretty lil pictures of what i'm talking about :)
In a nut shell the story goes like this folks. If your PS2 won't read
certain game DVD's that are of a certain color or if it all of a sudden
mysteriously fails to read games it once read
but will play cd's just fine, the voltage of the laser for DVD's is not set correctly. (this does needs manual tweeking from time to time if you take your ps2 and move it around alot or if you take it over to friends houses etc etc. Basicly alot of movment in general can take this out of alignment. Even keeping the PS2 on it's side could theoreticly (just my opinion) based on gravitational pull, unbalance the potentiometer.
RESOLUTION:
Step 1 identify your PS2 version: Version 1 - SCPH-30001, 10 screws on bottom of case, serial no. starts with "U1"
Version 2 - SCPH-30001, 10 screws on bottom of case, serial no. starts with "U0"
Version 3 - SCPH-30001, 10 screws on bottom of case, serial no. starts with "U2"
Version 4 - SCPH-30000, 30001, 35001, 30002, 35002, 30003, 35003, 30004, or 35004, 8 screws on bottom of case
NOTE: Version 4 has 2 varieties of motherboard: Gap/No Gap, the
difference between v4 "Gap" and v4 "No Gap" is the "Gap" is there's a
spot in the center of bios chip where each side lacks solder points.
Version 5 - SCPH-30000R, 30001R, 30002R, 30003R, 30004R, or 30006R.
Also, some SCPH-30000, 30001, 30002, 30003, and 30004 models have a
V5/V6
NOTE: Version 5 & 6 - the difference between these two versions is one of the connectors in the corner.
Version 7 - SCPH-39000, 39001, 39002, 39003, 39004, 39008 or 37000
Version 8 - Only in Japanese consoles. SCPH-39000, or, SCPH-39006 (GH-022 BIOS 090)
Version 9 - if you have SCPH-50000, 50001, 50002, 50003, 50004, 50006, or 50007 you have a v9 or v10 board.
Version 10 - SCPH-5000x, with date code "3D" to the right and below the serial number on the back of the console. (GH-026 board)
NOTE: To know if its a v9/v10 start up PS2 with no game in it ,press
triangle and check dvd driver version dvd ver 3.00 = v9 & dvd ver
3.02 = v10.
If your model # is SCPH-50000, 50001, 50002, 50003 or 50004 AND if you
can find a small ''a'' under the SCPH number or have DATECODE "3C" you
have a V9 PS2 main board. (GH-026 board).
If your model # is SCPH-50000, 50001, 50002, 50003 or 50004 AND if you
can find DATE CODE "3D" as shown below, you have a V10 PS2 main board.
(GH-026 board).
Version 12 - The new slimline PS2 consoles are referred to as PSTwo
here, but elsewhere they are also known as "v12" units... their numbers
are SCPH-70011/SCPH-70012, and also SCPH-70004 CB (Belgium).
Step 2 use either google or the link above. If you're using google your keyword search will be something like "ps2 v12 laser lens adjustment" *replace v12 with your ps2 model.
In either case navigate to the site and follow instructions to set the pots back to their factory default settings.
my device's model number is scph-70004
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