TheBlah Posted May 4, 2016 Share Posted May 4, 2016 So in the school I work at there is a TEAC ar630 as the kind of go to audio input from the computer. for some reason it's not turning on, it is plugged in and the power light comes on to say it's in standby mode and when you try and turn it on fully, the light turns off, the device turns on slightly and then instantly turns off again making a double click noise when it does, not always of the same length. Link to comment Share on other sites More sharing options...
Shez Posted May 4, 2016 Share Posted May 4, 2016 The kind of click that relays make?Does it also behave like that when it's not connected to anything, including speakers? Link to comment Share on other sites More sharing options...
jamesperrett Posted May 5, 2016 Share Posted May 5, 2016 Sounds like the protection relay to me. It is detecting an unexpected voltage on the output and shutting off the output to protect the speakers. It probably requires attention from a service engineer. Link to comment Share on other sites More sharing options...
MarkPAman Posted May 5, 2016 Share Posted May 5, 2016 That. Or, its detecting a short at the output (in the speakers or speaker cable) and is shutting down to protect the amplifier. Hence, I suspect, Shez's question. Link to comment Share on other sites More sharing options...
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