I have a JVC car radio model # KD-S570. I bought from original owner. Everything worked great. It seems when my battery went dead and when I jumped it, the radio doesnt work. All lights, stations show but after 10 seconds the words "TEL" flash on the screen. No volume or anything. I thought it was a trouble code, but i contacted the original owner to see if they had a code and they said no, and they replaced the battery once and never had it happeded....any Clues??

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