I’ve got a snooper s7000 Sat nav, about two and a half years old. Updated it last month, this week the tv packed up but the Sat nav works fine. Any ideas what’s wrong with it, I’ve reset it twice now, region is locked on to UK, the arial has been everywhere inside and out but to no avail.
Your aerial… If it has a standard coax connection, try that unit from your household aerial feeder. The one that feeds standard terrestrial digital to the domestic T.V.
If that don’t work, sounds like you’ve got a problem with the R.F. (radio frequency) input side of your s7000.
Hope it works out for ya. Eliminate that aerial problem first though. Truck tv aerials can take a right hammering which I know from past experiences.
PM Me if I can help any further.
simon1958