Sony PCV-RX270DS - Manual (Page 73)

System Board 59
i.LINK Header Connectors
The system board has two i.LINK header connectors: 1394HEAD2 and
1394HEAD3.
A cable connects the 8-pin header connector (1394HEAD3) to an interface
unit mounted behind the front of the chassis. The interface unit connects
to the 4-pin i.LINK (IEEE1394) connector at the bottom of the front panel.
The other 8-pin header connector (1394HEAD2) is not used.
i.LINK Header connectors (1394HEAD2 and 1394HEAD3)
Pin Signal Name
1 Shell Ground
2 Ground
3 TPA
4 TPB*
5 TPB
6 GroundTPB*
7 Ground
8 VP (Power) *
* Uses over-current protection.
KY0099.VSD
1394HEAD3
1394HEAD2
1
8
1
8