Question about Memorex MT1091 Television
When I push the power button on the front of the television, all I hear is a double "click" coming from inside the tv. Then, nothing happens. Any suggestions???
If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages. This is probably a startup problem. It may be as simple as an open resistor that provides initial drive to the horizontal deflection. Check for power to the horizontal output transistor. If there is, check for drive. Could also be a bad flyback transformer. Another problem might be that the set is in high voltage shutdown, possibly due to a faulty voltage regulator. Check the regulated voltage going to the flyback primary (it should be marked on the circuit board what that voltage should be... 120V-140V in most TV's). If it is too low, the flyback transformer or one of its secondaries is probably loading down the primary input. If the voltage is too low, try disconnecting the secondaries. If the voltage remains too low, try disconnecting the primaries too. If the voltage is then normal, the flyback is bad. A REALLY bad flyback will also blow a fuse. don't leave the TV on too long with a shorted flyback, the h. output transistor can get too hot and probably fry, if it isn't fried already. If the primary voltage is too high, then the set is probably in high voltage shutdown, possibly caused by the voltage regulator. Good luck, and stay away from it if you haven't done this before. Take it to a lab if it's worth the repair.
Posted on Jun 05, 2006
Check the HOT
Posted on Aug 15, 2007
We had EXACTLY this same problem with our Naxa NX-518 combo TV-DVD. This WEIRD solution is what worked for us: My husband started to take the back of the TV off; took the four screws off, and as soon as he loosened the back, VOILA~! The TV came on! Magic! We think it might have something to do with pressure on top of the TV or something.
Posted on Sep 18, 2006
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