So my buddy gave me this tv to look at because it would not turn on. Specifically when it is plugged in the light on the front (a ring with a w) is lit. Once the power button is pressed the light goes off and the set clicks with nothing on the screen. I opened the set to test voltages from the power supply and only read the 5v standby voltage. I then removed the board and tested the components i could test (diodes fuses etc) and came across these readings on the two (i think) mosfet transistors.
Q302
Black lead. Red lead. Reading.
Source. Drain. 1
Source. Gate. 1
G. D. 1
G. S. 578
D. S. 426
D. G. 1
Q301
Source. Drain. 1
Source. Gate. Starts at 1900s and steadily falls
G. D. 1
G. S. 086
D. S. 427
D. G. 545
I havent looked at a schematic or a data sheet on them (they are buried under a heatsink and i cant read the numbers). Is it a good assumption that the q301 transistor is bad and needs to be replaced? If so it is going to be a pain but a fun challenge i guess
Q302
Black lead. Red lead. Reading.
Source. Drain. 1
Source. Gate. 1
G. D. 1
G. S. 578
D. S. 426
D. G. 1
Q301
Source. Drain. 1
Source. Gate. Starts at 1900s and steadily falls
G. D. 1
G. S. 086
D. S. 427
D. G. 545
I havent looked at a schematic or a data sheet on them (they are buried under a heatsink and i cant read the numbers). Is it a good assumption that the q301 transistor is bad and needs to be replaced? If so it is going to be a pain but a fun challenge i guess
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