Lenovo PC 300 IBM PC300 (Type 2169) - Hardware Maintenance Manual (September 2 - Page 129

Panel connectors for switches, AND INDICATORS, Function

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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 Pins 1, 3, 5, +7 +2, +4, 6 8, 10 +13, 14 +15, 16 17, 18 19, 20 21, 22 22 21 Power SW Suspend SW Reset SW HDD LED Green LED KeyLock Power LED Speaker 2 1 PANEL1 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" Identifies Power Switch connector Identifies HDD LED connector Identifies Power LED connector 127

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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