I am repairing a defective Y sustain board (Samsung LJ92-01200A) from a Philips 42" (model 42PF7220A) plasma TV. The Y sustain board has a shorted diode (reference designator D5018) which is shorted. The diode is is a SMD marked F4 followed by 5D (probably date code). I need help in identifying the part. Can anyone help??
Also I suspect the upper Y buffer board may have a problem or needs to be checked. The shorted diode provides power to the upper Y buffer. Does anyone have a technique for testing the Y buffer board??
I have located a source (datasheet and spares) for the Y buffer.
Topic: Defective Samsung LJ92-01200A Y Sustain Board (Read 31028 times)