IBM MICRO TOWER 2169 - Manual (Page 129)

127
PANEL1: PANEL CONNECTORS FOR SWITCHES
AND INDICATORS
The panel connector is used to implement the switches and
indicators on your system case.
Note: Only pins 15, 16 (Hard Disk Indicator) and pins 21, 22
(Power Switch) are used on 2169 standard models. Connector
J2, referred to on the system board diagram is used for the
power on LED.
Function Pins
Speaker 1, 3, 5, +7
Power Indicator +2, +4, 6
Keylock 8, 10
Green Indicator +13, 14
Hard Disk Indicator +15, 16
Reset Switch 17, 18
Suspend Switch 19, 20
Power Switch 21, 22
Pins polarity is marked on the pcb next to each pin.
To identify which cable connects to the panel 1 pins look at the
text on each cable connector:
“Power sw” Identifies Power Switch connector
“Hdd led” Identifies HDD LED connector
“Power led” Identifies Power LED connector
2 1
22 21
Speaker
Power LED
KeyLock
HDD LED
Reset SW
Suspend SW
Power SW
Green LED
PANEL1