I got this tv with 7 blinks, sure it's the SC board problem, took the board out and mesured the FETs, look 6 of them were shorted, from Q641-646, the way I did was to use multimeter on diode position, the red pin on the tab D (I guess base of the FET), the black on the S and G.
Q641-646:
D-S: 14
D-G: 265
Q695-Q696:
D-S: 14: 5.4 M
D-G: 154 K
So I thought the 6 FET Q641-646 were shorted, but when I lifted the two legs of Q641 from the board, I measured the same way to the FET, I was surprised the value was different:
D-S: no value
D-G: no value
And I measure the same position on the board (S,G point on the board), I got the same value as 14 and 265.
Is the FET not good but the other parts like resitors or capacitors failured? How can I determine the FET is good?
Thanks
Q641-646:
D-S: 14
D-G: 265
Q695-Q696:
D-S: 14: 5.4 M
D-G: 154 K
So I thought the 6 FET Q641-646 were shorted, but when I lifted the two legs of Q641 from the board, I measured the same way to the FET, I was surprised the value was different:
D-S: no value
D-G: no value
And I measure the same position on the board (S,G point on the board), I got the same value as 14 and 265.
Is the FET not good but the other parts like resitors or capacitors failured? How can I determine the FET is good?
Thanks
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