Sunday, April 07, 2013

LG 42LH50 - MAIN CONNECTORS - VOLTAGES - POWER SUPPLY VOLTAGE AND DIODE CHECK - T-CON VOLTAGE & DIODE CHECK


P2400 [MAIN PWB to P201 'SMPS PWB]
VOLTAGES

Main PWB Connector P1100 to the T-CON Voltage and Diode Check
P1100 CONNECTOR "Main" to CN1 “T-CON” [Diode Mode values taken with all Connectors Removed]
Main PWB Connector P1101 to the T-CON PWB Voltage and Diode Check [P1101 CONNECTOR "Main" to CN2 “T-CON"] {Diode mode values taken with all connectors removed}
Main PWB Connector P3400 to (Ft. IR/LED Control) Voltage and D Main PWB Connector P3400 to (Ft. IR/LED Control) Voltage and Diode Check. [P3400 CONNECTOR "MAIN PWB" to P1 "Front IR / LED PWB Assy”]  Diode Mode values taken with all Connectors Removed.
Main PWB Connector P2300 to Speakers Voltage and Diode Check. [P2300 CONNECTOR "Main" to "Speakers"] Use speaker out to test for defective Audio Amp IC2301.