looking for schematic diagram

[kishan]

hi plz can anyone tell me where can i find the schematic diagram of sony play station coz my playstation is not functioning i should repair my power suplly so plz if anyone can tell me where i can find it i had downloaded the pdf file for sony play station SCPH-7500 but i need for SCPH-9000 plz tel me i be grateful to you and if you can plz tell me more sites wherer i can download schematic diagrams for electronic items