I got to fix Plasma 42PJ350 which fell down by back side. I repaired broken PCB of power supply. Main voltages VA, Vsc, VS, -Vy, Vzb are OK. After turning on the TV it starts with loud buzzing sound. No picture but sound OK.
Also tried to short on T-CON AUTOGEN and EXT for test pattern panel, but unsuccessfully, buzzing sound has changed a little intensity. But the panel shows
notting.
On T-CON led D101 blinks by irregular intervals. So the T-CON should be as good, 5V comes to T-CON from PSU.
May be defective panel? It does not look damaged, but TV is after the fall.
Thank you for your advice, I eventually upload video of buzzing sound.
Also tried to short on T-CON AUTOGEN and EXT for test pattern panel, but unsuccessfully, buzzing sound has changed a little intensity. But the panel shows
notting.
On T-CON led D101 blinks by irregular intervals. So the T-CON should be as good, 5V comes to T-CON from PSU.
May be defective panel? It does not look damaged, but TV is after the fall.
Thank you for your advice, I eventually upload video of buzzing sound.
