Yesterday, I had a chance to cleaning up my Sony Playstation SCPH-1002. As you know this PS1 already become my reference CD Player since around 6 years ago and today I open it up again just to checking and make some adjustment, especially on the switch mode power supply.
I have read many PS1 SCPH-1002 owner claimed about heat generated from the SMPS is very high due to higher voltage input in this model. It is 220 volt. The heat is the main cause of yellowish case and the major factor of CD mechanism and optical failure due to near the heat itself.
I am checking from where is the heat are generate and found that the FET transistor near the AC line input is very hot during operation. The original heat sink is small and thin that not sufficient enough to release the heat from the FET itself.
So, what I am doing next is modify the position of the FET with some wire to extend the pin of the FET, and adding new bigger heat sink to the FET. Comparing to the original, this new heat sink is way more bigger. This would help the FET to spread the heat better.
The heat sink is sit in it's place, glued for keep steady and It is a nice looking too:) Anyway, you could try this upgrade but beware of the high-voltage and always double check the extension cable and the heat sink not to touch any open wire from others components.
Disclaimer: Any statement and photos in this article are not allowed to copy or publish without written permission from the writer. Any injury or loss from following tips in this article is not under writer responsibility.
I have read many PS1 SCPH-1002 owner claimed about heat generated from the SMPS is very high due to higher voltage input in this model. It is 220 volt. The heat is the main cause of yellowish case and the major factor of CD mechanism and optical failure due to near the heat itself.
I am checking from where is the heat are generate and found that the FET transistor near the AC line input is very hot during operation. The original heat sink is small and thin that not sufficient enough to release the heat from the FET itself.
So, what I am doing next is modify the position of the FET with some wire to extend the pin of the FET, and adding new bigger heat sink to the FET. Comparing to the original, this new heat sink is way more bigger. This would help the FET to spread the heat better.
The heat sink is sit in it's place, glued for keep steady and It is a nice looking too:) Anyway, you could try this upgrade but beware of the high-voltage and always double check the extension cable and the heat sink not to touch any open wire from others components.
Disclaimer: Any statement and photos in this article are not allowed to copy or publish without written permission from the writer. Any injury or loss from following tips in this article is not under writer responsibility.
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