LG 42LH20 - Side Key Assembly; Side Key Measurements and Connections

February 2009 42LH20
67
Side Key Assembly
Side Key Assembly
P3000 Diode Check Measurements with Key pressed.
CH (Up)
CH (Dn)
Volume (+)
Volume (-)
KEY
10K Ohms
4.8K Ohms
1.8K Ohms
270.5 Ohms
Pin 3 measured
from Gnd
10K Ohms
4.8K Ohms
1.8K Ohms
270.5 Ohms
Pin 1 measured
from Gnd
Enter
Menu
Input
Power
KEY
P3000 Voltage Measurements with Key pressed.
CH (Up)
CH (Dn)
Volume (+)
Volume (-)
KEY
2.24V
1.65V
0.906V
0.179V
Pin 3 measured
from Gnd
2.24V
1.65V
0.906V
0.179V
Pin 1 measured
from Gnd
Enter
Menu
Input
Power
KEY
P3000 Connector “Side Key" to “IR/LED Control
PWB“ P1
Gnd
Key2
Gnd
Key1
Label
Gnd
Open
Gnd
Open
Diode Check
GndGnd4
3.3V3.3V3
GndGnd2
3.3V3.3V1
Run STBYPin
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