Author Topic: inverter problem  (Read 4388 times)

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taloola

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inverter problem
« on: October 17, 2008,17:30:04 »
 :dubbio:i am trying to test an inverter on a samsung le40r51b and i am getting strange results,the drawing below is the connections on the 2 identical  inverter boards and there values.when i switch on i get 24v on 1-5, eth on 6-10, nothing on 11, 4.7v on 12, 2.7v on 13 and 3.3v on 14 and the backlight switchs on.after about 8 secs the backlight turns off but the voltages all stay the same as before.i have little experience of inverters but would have expected the on/off voltage to change when the light goes off.
there are 40 transformers and when i test i get continuity accross terminals 1-5 but open circuit across terminals 6&7 on all 40 transformers (2 transformers per tube)(my meter is working ok)

anyone have any ideas or info on testing, am i testing correctly
« Last Edit: October 17, 2008,17:50:40 by taloola »

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