P3000 Connector Checks - LG 42LH50 Training Manual

Side Key Assembly P3000 Voltage and Diode Check
Side Key Assembly P3000 Voltage and Diode Check
P3000
P3000 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
P3000 Voltage Measurements with Key pressed.
Pin 1 measured
KEY
from Gnd
Power 0.179V
Input 0.906V
Menu 1.65V
Enter 2.24V
P3000 Connector "Side Key" to "IR/LED Control
PWB" P1
Pin Label STBY
1 Key1 3.3V
2 Gnd Gnd
3 Key2 3.3V
4 Gnd Gnd
69
Pin 3 measured
KEY
from Gnd
Volume (-) 270.5 Ohms
Volume (+) 1.8K Ohms
CH (Dn) 4.8K Ohms
CH (Up) 10K Ohms
Pin 3 measured
KEY
from Gnd
Volume (-)
Volume (+)
CH (Dn)
CH (Up)
Run Diode Check
3.3V Open
Gnd Gnd
3.3V Open
Gnd Gnd
2009 FALL LCD DV
0.179V
0.906V
1.65V
2.24V
42LH50