Hello everyone!
I got one LG plasma TV 60PA5500 with faulty Y-sus board. The tv power up when i push the power on button but screen not turn on. I check all voltages at power supply board,main board,etc and looks fine when Y-sus board is disconnected. With the Y-sus board connected the VA voltage flashing 35V to 55V. So after i checked the Y-sus board i noticed some burned parts like diodes and transistors at back side (SOT-323). I marked them at attached image.So i wanna 1st ask if any same tv owner can help me whats the transistor marking code Q504 because mine its totaly burned( i only see a "*W" mark on it), 2nd whats the mark code of Zener diode Z0501 and 3rd whats the voltage measure at 5VF pin at buffer connector because i measure 205V like SUSDN pin. If anyone can help will be very kind.
I got one LG plasma TV 60PA5500 with faulty Y-sus board. The tv power up when i push the power on button but screen not turn on. I check all voltages at power supply board,main board,etc and looks fine when Y-sus board is disconnected. With the Y-sus board connected the VA voltage flashing 35V to 55V. So after i checked the Y-sus board i noticed some burned parts like diodes and transistors at back side (SOT-323). I marked them at attached image.So i wanna 1st ask if any same tv owner can help me whats the transistor marking code Q504 because mine its totaly burned( i only see a "*W" mark on it), 2nd whats the mark code of Zener diode Z0501 and 3rd whats the voltage measure at 5VF pin at buffer connector because i measure 205V like SUSDN pin. If anyone can help will be very kind.
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