bought from Dell in part because of its 3y warranty , but now Samsung says its 1y and back light failed at 2.5y
started to flicker a few days back, went black a few times and then re-fired. Now it flashes on and off and then goes totally black although display is still visible with a bright light.
board is different than most I have seen.
https://docs.google.com/open?id=0Bx4...E1OTZhZTBmYzVh
2 fuses (circled) at least not tiny pico units and test OK. Pulled all the SAMYOUNG caps and they all test ok by simple LCR meter. Pulled the inverter transformer and got 1.115k for both S1-2 and S3-4 but P2 is shorted to P3 (zero ohms) and should be closer to 0.2-1.0 I believe. I think the Samsung 2243 uses the same transformer and will order one. Have new Nichicons coming from mouser too.
started to flicker a few days back, went black a few times and then re-fired. Now it flashes on and off and then goes totally black although display is still visible with a bright light.
board is different than most I have seen.
https://docs.google.com/open?id=0Bx4...E1OTZhZTBmYzVh
2 fuses (circled) at least not tiny pico units and test OK. Pulled all the SAMYOUNG caps and they all test ok by simple LCR meter. Pulled the inverter transformer and got 1.115k for both S1-2 and S3-4 but P2 is shorted to P3 (zero ohms) and should be closer to 0.2-1.0 I believe. I think the Samsung 2243 uses the same transformer and will order one. Have new Nichicons coming from mouser too.
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