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My SD3990 DVD plsyer will not power on - Televison & Video

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168 Answers

Ensure that there is power in the socket and check that the power cable is firmly fixed to the socket. if power does not come on then switch off, remove the power cable from the socket then open the dvd player cover. plug in the power cable again and now measure if you are able to get power into the power supply unit. if power is reaching the psu then measure the output power which feeds 12v to the motherboard, if not present then concentrate on diadnosing the power supply unit as the power ic could be dead and requires replacement.

Posted on Sep 17, 2011

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