Sony PCV-RX640 Service Manual page 28

USB/LAN
One USB connectors for external USB devices (Support the stacked connector)
One 10/100Base-T connector
Connector location on MB See the frame harness diagram
Pin assignments:
Pin Signal Name Pin
1 ACTLEDP 11 LANP8
2 ACTLEDN 12 LANP8
3 LILEDP 13 USBVCC1
4 LILEDN 14 USBP1-
5 TXPCON 15 UCBP1+
6 TXNCON 16 GND
7 RXPCON 17 NC
8 LANP5 18 NC
9 LANP5 19 NC
10 RXNCON 20 NC
USBVCC1 lines need the over current protector.
Raychem miniSMDC110-2 or equivalent is used for that.
COM1 Port/Line Out/Line In/Microphone Jack
Connector location on MB Rear side, see the frame harness diagram
3-3 Jumper Header
CMOS Clear
Clear the RTC data
Connector location on MB ---
Jumper header
1 2 3
Combination of jumper caps:
CMOSCLR
1-2 Clear
2-3 Normal
Signal Name
5-7
Confidential
PCV-RX6__Series (AM)