LG 42LH90 Manual page 88

Side Key Assembly P100
Side Key Assembly P100
Voltage and Diode Check
Voltage and Diode Check
P100
P100 Resistance Measurements with Key pressed.
Pin 1 measured
KEY
from Gnd
Power 270.5 Ohms
Input 1.8K Ohms
Menu 4.8K Ohms
Enter 10K Ohms
P100 Voltage Measurements with Key pressed.
Pin 1 measured
KEY
from Gnd
Power 0.179V
Input 0.906V
Menu 1.65V
Enter 2.24V
P100 Connector "Side Key" to "IR/Intelligent Sensor Board" P2
Pin Label STBY
1 Key1 3.3V
2 Gnd Gnd
3 Key2 3.3V
4 Gnd Gnd
88
KEY
Volume (-)
Volume (+)
CH (Dn)
CH (Up)
KEY
Volume (-)
Volume (+)
CH (Dn)
CH (Up)
Run Diode Check
3.3V Open
Gnd Gnd
3.3V Open
Gnd Gnd
February 2010 LCD DV
Pin 3 measured
from Gnd
270.5 Ohms
1.8K Ohms
4.8K Ohms
10K Ohms
Pin 3 measured
from Gnd
0.179V
0.906V
1.65V
2.24V
42LH90