Marantz SR8500 Receiver "turning child lock" Questions

...or so it says protected with a lock logo it happened all of a sudden. Its not the DVD because I have watched that DVD before so its not a regional problem I think Has it got a child lock

Child lock on .. pls how do i turn it off What make and model receiver?

...child lock or safety function? thx a lot No!  there is a problem in the audio output ic's "more than likely shorted parts" check to make sure there are no shorts in the speaker wiring, if ...

...child lock" mode, in which case you should see the manual about how to reset it. It sounds to me that there is a fault on the microprocessor that controls the functions. It's not something that could ...