LED blinks 2 times (TH-50PX60U\600U, TH-58PX60U\600U, TH-65PX600U)Trouble Mode15V down SOSDefective Board (Possibility)P, D, PA, SC, SS Board (P > PA, D, SC, SS)Turn the unit on.Is there 15V outputat CN P25 pin 1 or 2 beforeShutdown ?D Board SC BoardD BoardYesNoNoP BoardPA BoardPower SW OFF.Disconnect CN P25. Checkpin 1 or 2 of the socket for aShort to GND?NoYesNoYesTurn the unit on.Does the power LEDblink 2 times?With the power SW OFF, disconnectCN SC23, SC20, and SC2. To isolatethe SC board.With the power SW OFF, disconnect CN P12, SS11, and SS43(*1). to isolate the SS board. Remove the jumper at CN SS34and install it across pin 8 and 10 of connector P12.SS BoardNoTurn the unit on.Does the power LEDblink 2 times?YesWith the power SW OFF, disconnectCN P5. To isolate the PA boardboard.Turn the unit on.Does the powerLED blink 2 times? Thepower LED may blink 12times.Warning: Disconnect AC Power prior tomaking any disconnection orconnection.(*1) = The reference number of the sustain dataconnector is different in some of the models:TH-50PX60U = SS43TH-50PX600U = SS43TH-58PX60U = SS44TH-58PX600U = SS44TH-65PX600U = SS449LED blinks 3 timesTrouble Mode3.3V down SOSDefective BoardD BoardIn this case, the defective board is D board only.Warning: Disconnect AC Power prior tomaking any disconnection orconnection.10