IBM MICRO TOWER 2169 Hardware Maintenance Manual page 129

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
Speaker
Power Indicator
Keylock
Green Indicator
Hard Disk Indicator
Reset Switch
Suspend Switch
Power Switch
KeyLock
Power LED
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"
"Hdd led"
"Power led"
22 21
Power SW
Suspend SW
Reset SW
HDD LED
Green LED
Speaker
2 1
PANEL1
Identifies Power Switch connector
Identifies HDD LED connector
Identifies Power LED connector
Pins
1, 3, 5, +7
+2, +4, 6
8, 10
+13, 14
+15, 16
17, 18
19, 20
21, 22
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