Sony PCG-340 Notebook won’t boot

Notebook is P3 800mhz, 512 mb ram, with Windows XP Home Ed. First: Ckdsk would run on startup, freeze @ 28% +/-, then froze @ 90%. Next on startup got screen with foreign language or random letters- looked like ckdsk screen, frozen. Now on startup get green power button, yellow battery light on/off, HDD light on- then immediately off, CD drive light on, then off, HDD is spinning, no screen. Floppy disk and XP cd not recognized. Can not access bios (F2?) Sony Support Site no help.