I've got no power
NS-B4111 insignia won’t turn on
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This could be something as simple as a bad power cord. Checking with a DVM will confirm or rule it out.
Anything else will require disassembly and there are no service manuals available to help.
If you can figure out how to open it up, the next simple fix would be a fuse. Again it is an eyeball thing and a DVM verify. If it is a fuse, it might be just that or more likely something else caused it to blow. The next item is the power switch. Again, verify with DVM. Past that you need to be a little more technical to figure this out, or have someone put their hands and eyeballs on it. At $39.99 new, it will cost more to get it fixed. A new one will have some warranty. A fix won’t.
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Are you trying to use the device with the AC adapter, or are you powering the device using the battery's.
由 Jacob Mehnert 完成的