Introduction
Is your PlayStation SCPH-550x having trouble reading games? This guide will show you how to extend the life of the existing laser you already have so you can either get another system, or replace the failed laser unit. On many of these older Playstations, this is a known failure point.
In the case of the system used for the guide, it was only recovered to 50-60% read after adjustment. The laser needs to be replaced and cannot be reliability re-adjusted.
Guide notes
- This is often a temporary or partial fix! While you may permanently repair the system, it is very unlikely to hold up over the long term.
- THIS WILL NOT RECOVER KSM-440AAM and ACM laser assemblies. These fail due to a plastic optical block known for physically degrading. You must replace the laser unit on these - no way around it.
- This guide is intended to be used on the KSM-440ADM laser, or newer. These use a magnesium optical block, and do not wear down like the plastic block.
- If you have a issue with this laser beyond the ability to adjust it, the KSM-440BAM laser may work, depending on which system you own. As this assembly is designed for the PSOne, it must be gapped to fit these units with spacers. Note: If you do this, the laser trimpot on the board MUST be adjusted.
What you need
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Tool used on this step:Essential Electronics Toolkit$29.95
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If you are interested in a refurbished kit stock levels change frequently but can be found here.
Ask FixBot
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If your laser is plastic: You must replace the laser due to uneven wear.
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If you have a Die cast laser, this fix may improve the read rate. However, this is an age based failure. Note: In some cases, the laser resistance will need to be adjusted.
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Remove the 6 screws from the bottom of the PlayStation. Use a Phillips #2 screwdriver.
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Lift the top cover off.
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With the laser removed from the system, remove the 2 Phillips PH1 screws. Check if the laser is plastic.
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Before starting, mark the original adjustment point and write down the factory setting as tested. It will be difficult to take it back to stock without this information.
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Adjust the trimpot incrementally using a Phillips PH1 or other compatible bit. Do this until the laser is reading games more consistently.
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Partially reassemble the system and test it. If it is sufficient, reassemble the system.
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To test the read percentage, get a few known good games and see which ones load. A minimum of 5 test games is recommended. Only adjust the laser again after each full test is done.
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If the game loads, test play the system for a few minutes to check the stability. Important: Some early revisions have FMV issues - THIS IS EXPECTED.
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To reassemble your device, follow these instructions in reverse order.
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3 Guide Comments
Hello, I recently attempted to replace my weak laser in my 5501 with a 440BAM and it did not work, I even tried putting back the old laser but it wouldn't work again at all no motor spin or anything. Any ideas as to what I'm doing wrong or how to fix? Thanks!
