Pmotz,
I don't know where there are any instructions for modding the Philips, but the basics are to change the one large cap on the power supply board which is where the AC power comes in. My original cap was blue and, according to some posts I found, should be 100uf/400v capacitor. Replace it with a Blackgate VK 150/350V capacitor. I ordered mine from www.referenceaudiomods.com.
Update : I just checked their web site which says that model capacitor has been discontinued and they recommend a Blackgate NH Series 68uf/350v.
Good luck !
I don't know where there are any instructions for modding the Philips, but the basics are to change the one large cap on the power supply board which is where the AC power comes in. My original cap was blue and, according to some posts I found, should be 100uf/400v capacitor. Replace it with a Blackgate VK 150/350V capacitor. I ordered mine from www.referenceaudiomods.com.
Update : I just checked their web site which says that model capacitor has been discontinued and they recommend a Blackgate NH Series 68uf/350v.
Good luck !