LG 50PS60 Training Manual page 138

Side Key Assembly
Side Key Assembly
P1 Resistance Measurements with Key pressed.
Pin 1 measured
KEY
CH (Up) 0.61K Ohms
CH (Dn)
Input 3.66K Ohms
P1 Voltage Measurements with Key pressed.
Pin 1 measured
KEY
CH (Up)
CH (Dn)
Input
Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode.
P1 Connector "Side Key" to "IR/LED Control PWB" J2 (No Key Pressed)
STBY 1
Pin
Power
1 KEY 1
Button Out
2 KEY 2
STBY 2
3 PWR SW
Power
Button Out
4 Gnd
from Gnd
9K Ohms
from Gnd
0.19V
1.57V
0.88V
*STBY1
0V
0V
4.38V
Gnd
137
Pin 2 measured
KEY
from Gnd
Volume (+) 3.6K Ohms
Volume (-) 0.62K Ohms
Enter 22K Ohms
Menu 9K Ohms
Pin 2 measured
KEY
from Gnd
Volume (+) 0.86V
Volume (-) 0.19V
Enter 2.2V
Menu 1.56V
*STBY2 Run
3.3V 3.3V
3.3V 3.3V
Gnd Gnd
Gnd Gnd
Fall 2009 1080P Plasma 50PS60
Diode Mode
Open
Open
Open
Open