Sony VAIO PCV-R556DS Service Manual page 25

Serial (COM1)
Connector location on MB
pin assignments :
Pin Signal Name
1 DCD
2 Serial In #
3 Serial Out #
4 DTR#
5 Ground
6 DSR
7 RTS
8 CTS
9 RI
IEEE1394 Rear connector
6 pin standard IEEE1394 Rear connector.
Connector location on MB
pin assignments :
Pin Signal Name
1 VP (Power )
2 Ground
3 TPB*
4 TPB
5 TPA*
6 TPA
VP line need over current protector. Raychem SMD150/33-2 or equivalent
is used for that.
PS/2 Keyboard/Mouse
Connector location on MB
pin assignments :
Pin Signal Name
1 Keyboard Data
2 Mouse Data
3 Ground
4 PS2VCC
5 Keyboard Clock
6 Mouse Clock
7 Mouse Data
8 N.C.
9 Ground
10 PS2VCC
11 N.C.
12 Mouse Clock
PS2VCC line need the over current protector. Raychem miniSMDC110-2
or equivalent is used for that.
USB Rear Connector x2 + Network Connector
USB Rear Connector
4 pin standard 2mm single line header for Rear USB connector.
Connector location on MB
pin assignments :
Pin Signal Name
1 USBVCC1
2 USBP0#
3 USBP0
4 Ground
USBVCC1 line need the over current protector.
Raychem miniSMDC110-2 or equivalent is used for that.
Network Connector
8 pin standard RJ-45 LAN connector
Connector location on MB
pin assignments
Pin Signal Name
1 TX+
2 TX-
3 RX+
4 N.C.
5 N.C.
6 RX-
7 N.C.
8 N.C.
In rear I/O window
In rear I/O window
In rear I/O window
In rear I/O window
In rear I/O window
6-3
Game/Line Out(Headphone) /Line In/Microphone Jack
Connector location on MB
Game port pin assignments :
Pin Signal Name
1 GAMEVCC
2 JPYB0
3 JOYA0
4 GND
5 GND
6 JOYA1
7 JOYB1
8 GAMEVCC
9 GAMEVCC
10 JOYB2
11 JOYA2
12 MIDI_TxD
13 JOYA3
14 JOYB3
15 MIDI_RxD
Line Out pin assignments :
Pin Signal Name
Sleeve Ground
Tip Audio Left Out
Ring Audio Right Out
Line In pin assignments :
Pin Signal Name
Sleeve Ground
Tip Audio Left In
Ring Audio Right In
Microphone In pin assignments :
Pin Signal Name
Sleeve Ground
Tip Microphone mono In
Ring Electret Bias Voltage
GAMEVCC line need the over current protector. Raychem miniSMDC110-2
or equivalent is used for that.
In rear I/O window
Confidential
PCV-R556DS/R558DS (UC)