TV model no. is TH-58PE75U and A board part no. is TNPH0692ADS
When I connected power supply this time without A board in it...I see white screen and NO red led showing power..
....earlier with A board connected it was black screen and power led was red and blinking..
I checked the voltage as per your advice.. ...there are two connectors coming from power supply to this A board...and I check all the pins.. First connector has 11 pins and second connector has 12 pins..
Voltage on first connector
1st pin-15.73 V , 2nd pin - 15.73 V , 3rd and 4th zero V, 5th- 5V, 6th,7th and 8th - 0v, 9 th- 3.73V and 10th and 11th it is 0V
Voltage on second connector
1st,2nd pin-15.73 V rest of other total 10 pins - Voltage is zero.
Total pins on this connector is 12 pins.
Can you please confirm if above voltages look ok? Thanks again.. Vik