Why does my Garmin 276c chartplotter keep turning on and off?

grantb

New member
I bought a used garmin 276c off ebay. The seller told me the battery was defective but that it worked fine plugged in.
When I plug it in, it turns on and then after a few seconds the screen goes blank/flickers and it restarts.
This cycle keeps continuing for hours. Sometimes the unit will be OK for a few minutes and appears to be working and then restarts.
I hate getting ripped off but it looks like that might be the case....
 
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