LG 42LH20 - Front IR;LED Control Connector Voltage;Diode Check

February 2009 42LH20
65
Front IR/LED Control Connector P1 and P3 to Main Voltage and Di
Front IR/LED Control Connector P1 and P3 to Main Voltage and Di
ode Check
ode Check
Diode Mode values taken with all Connectors Removed
2V
Open
Gnd
2V
Gnd
Gnd
1.5V
Open
Open
Gnd
2.4V
2.4V
Diode
Check
3.3V3.3VSCL1
3.3V3.3VSDA2
GndGndGnd3
3.3V3.3VKey14
3.3V3.3VKey25
5.1V5.1V5V ST6
GndGndGnd7
GndGndGnd8
4.8V4.8VIR9
GndGndGnd10
3.29V3.29V3.3V_ST11
3.29V0VPOWER On/Off12
RunSTBYLABELPin
P1 Connector “IR/LED Control PWB“
to "MAIN PWB" P404
P3 Connector “IR/LED Control PWB“
to “Side Key" P3000
Gnd
Key2
Gnd
Key1
Label
Gnd
Open
Gnd
Open
Diode
Check
GndGnd4
3.3V3.3V3
GndGnd2
3.3V3.3V1
Run STBYPin