Sony PCV-E518DS - Manual (Page 58)

VAIO Digital Studio Reference Manual 50
Connectors
Front Panel Header (J25)
The front panel header is a 20-pin header (1 pin is removed for the key)
that provide connections to various front panel functions. A 20-pin
connector with only eight wires is used to interface the system board to
the front panel.
Name Description
SPEAKER (not used)
PWR LED Connects to the power-on indicator light on the front panel
HD LED Connects to the hard disk drive access light on the front panel
SLEEP (not used)
PWR Connects to the power-on switch on the front panel
RESET (not used)
KY0031.VSD
Front panel header
(J25)
SPEAKER
(not used)
HD LED PWR
PWR LED SLEEP RESET