I'm troubleshooting a bn44-00598a from samsung pn43f4500.
Removed the power supply and tested the voltages, had no voltage in VA and VS, a few minutes with the multimeter and encounter 4 IGBT in short circuit (2 RJP30H1DPD, 2 FGD4536).
I replaced them, tested by sorting PS_on to gnd and VS and VA were good.
Before putting the power supply in place tested again with the mainboard, when I plugged in the mains the two IGBT(FGD4536) from VA blew up immediately.
I've lost a few hours trying to find the cause for this but without any success.
I would like to know if someone here in the forum with more experience in smps from Plasma tv's knows what might be causing this.
Removed the power supply and tested the voltages, had no voltage in VA and VS, a few minutes with the multimeter and encounter 4 IGBT in short circuit (2 RJP30H1DPD, 2 FGD4536).
I replaced them, tested by sorting PS_on to gnd and VS and VA were good.
Before putting the power supply in place tested again with the mainboard, when I plugged in the mains the two IGBT(FGD4536) from VA blew up immediately.
I've lost a few hours trying to find the cause for this but without any success.
I would like to know if someone here in the forum with more experience in smps from Plasma tv's knows what might be causing this.
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