Playstation 2 Laser Calibration using Oscilloscope
If your Playstation 2 has trouble reading certain discs it is probably due for a thorough cleaning and 
maybe laser calibration. Use a miniature vacum cleaner, canned compressed air and cleaning buds 
with isopropanol alcohol (IPA) to clean out all dust and dirt from the Playstation 2 including the laser.
Click here for images on how dirty your PS2 might be on the inside before cleaning
PLEASE! Use THIS THREAD in our messageboard for any comments/questions. I can not take the 
time to answer hundreds of personal emails with similar questions every day :-)
Caution! If you have any warranty left, always claim a warranty repair instead of doing any work 
yourself. If you open your PS2 you will break the warranty seal and the warranty will be VOID!
The laser is VERY sensitive to electrostatic discharge (ESD). Always work in an ESD-protected area when you service the Playstation 2.
WARNING!
When you perform laser calibration on Playstation 2, you will connect live 110V or 220V power with your console opened. This mean LETHAL danger. Uless you have enough experience of electronic service, DO NOT attempt.
If you are uncertain about your skill or available equipment to service the Playstation 2, leave the work to a professional workshop. We are not responsible to any damage to your self, your Playstation 2 or any other equipment or animals/persons. Use the information in this document on your own risk!
For professional calibration using oscilloscope and laser power meter in Sweden, contact us. We clean your PS2 and calibrate the DVD-player for SEK 750:- including VAT.
www.PSXCARE.com
www.PS2.nu
Hallandsgatan 30 118 57 Stockholm Sweden
08-615 21 60
+46 8 615 21 60
This document and all images marked "PSXCARE" are ©2002 NetCare AB
Use the instructions from this page to dismantle your PS 2
Laser calibration using an oscilloscope
Most laser calibration guides for the PS2 is all about adjusting the laser potentiometers "blindly" or using a multimeter to measure the resistance of the potentiometers. But the reason you use variable potentiometers is that every PS2 need individual adjustment, so you cant use one reference value.
What you need is an oscilloscope and/or a laser power meter to measure what is going on when you turn the pots.
It is always best to measure on a brand new well working PS2 to get some reference values to use when you are calibrating a bad laser.
If you have a laser power meter you just have to put the photodetector above the laser lens and look at the readout. If you are using an oscilloscope you have to know where to find the RF/Eye Pattern measure points.
Laserpotentiometers on the PS2
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