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I'm stuck with BT

bluetooth sharp bt

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#1 swizz

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Posted 26 December 2016 - 12:15 AM

Hi all,

So I'm new to the forum and looking for help.  I picked up a Sharp GF-4700, and wired in a BT dongle.  It connects and plays but sounds like sh*t.  I threw in a ground iso transformer and sill sounds terrible (reverb ans static).  One odd thing is that the get exremely loud instantly.  The way I have it wired is from the tape deck power to the BT dongle to the iso xmfr to the leads to the tape deck preamp.  I'm lost please help.



#2 baddboybill

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Posted 26 December 2016 - 07:03 AM

Yeah I think cuz it's off deck that's why. Did you remove deck wires? Cuz if not your getting feedback off deck

#3 swizz

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Posted 26 December 2016 - 01:05 PM

Yeah I think cuz it's off deck that's why. Did you remove deck wires? Cuz if not your getting feedback off deck

 

Yea, I removed all the deck wires.  And I know its not the speakers because the radio sounds fine.



#4 jimmyjimmy19702010

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Posted 26 December 2016 - 02:42 PM

The tape deck sensitivity is much higher than a normal line in. That would explain the 'extremely loud instantly' situation. Your music source should have a volume level of around 50% so as not to overload the deck pre-amp.

#5 Superduper

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Posted 26 December 2016 - 02:53 PM

It should never have been tied in at the deck preamp anyhow, especially if we are talking about where the heads connect to the circuit since the heads vs line-level is probably around -50db or so, which is a lot.  Tying it into the deck circuit is OK but since it's already considered approximately line-level, it should have been tied in at approximately the function switch area.  On the other hand, the OP does not provide nearly detailed enough clarity of where and how the BT is connected to the boombox.





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