Service manual

Pin Assignments for I/O Connectors: Dell Inspiron 4150
48 DOCK_+DC_IN 98 +5VSUS 148 NC 198 NC
49 GND 99 NC 149 +5VALW 199 NC
50 LOW_PWR 100 NC 150 NC 200 GND
PS/2 Connector
Use the 6-hole, miniature DIN PS/2 connector to attach PS/2-compatible devices such as a mouse,
keyboard, or external numeric keypad. If you reconfigure your hardware, you may need pin number
and signal information for the PS/2 connector.
Pin Signal I/O Definition
1 EXK_MSDATA I/O External keyboard/keypad/mouse data
2 KBD_DATA I Keyboard data
3 GND N/A Signal ground
4 EXK_MSPWR N/A External keyboard/keypad/mouse supply voltage
5 EXK_MSCLK I/O External keyboard/keypad/mouse clock
6 KBD_CLK I Keyboard clock
Shell N/A N/A Chassis ground
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