Sony Playstation 2 Repair Manual page 31

K. Before you get started lets get a reading of exactly
where the adjustment is set. Using your voltmeter in
the Ohms reading setting put 1 lead at the bottom of
the adjustment and the other in the upper left corner
(see photo). Write this reading down so you can go
back to it if needed. Using a very small screwdriver
carefully turn the adjustment to the right about 1
degree. Take a measurement again. You will then
have to put everything back together and try it. If it
does not work you can keep adjusting it over and over
until it works. I have found that the CD adjustment
can be anywhere between 950-1200 ohms and the
DVD can be between 650-1000 ohms. This can be a
very time consuming process but it will work for some
of you. The key is to be patient and careful. If you get
in a hurry you may pass the point where it works or
you may damage something taking it apart.
OPTIONAL ADJUSTMENT PROCEDURE
Use this procedure at your own risk and the risk of damaging your Playstation 2. This procedure will speed up
the process for you but it involves working on the Playstation 2 while it is plugged in and circuit boards are
exposed. The choice is yours.
HERE WE GO:
• Stand the PS2 on it's side so the power button is at the top. Have a friend hold it for you and make sure that
the expansion bay does not touch the exposed circuits on the adjacent board.
• Plug in the PS2 (power and video) and load a problem disc.
• Turn the adjustment pot 1 degree and reload the disc to see if it helped.
• Repeat the process until you have moved the adjustment 20 degrees. If you have not had success move it
back to the beginning spot and go the opposite direction up to 20 degrees.
I have never seen the adjustment needed to be turned more than 30 degrees although I have heard that some
people have had to turn it up to 180 degrees on PS2 that have a modchip and they are reading backup CD-R
games.
Before you finish lower the PS2 to the horizontal position and try the game as well as several others to make
sure you don't need some more fine adjustments. Some people have reported that a slightly higher setting is
needed in the horizontal direction than in the vertical.
Turn off your PS2 and reassemble.
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