AS the title says, a Sanwu HF-41 Amp + Bluetooth Board , and it has a HORRIBLE hissing noise (more noticeable at low volumes) when using the bluetooth input (but not when using the other inputs such as the usb input).
I see a million solutions for when the BT board and amp are separate boards, but I am looking for a solution to resolve this in my all-in-one board. I have not found an actionable solution that I understand yet.
Does anyone have any practical suggestions that a non-electrical engineer can understand and implement?
I am relatively new to this stuff (though I can solder, e.g. I've successfully swapped bad capacitors on TVs , etc.).
I have SO Many hours into this build, nearing the end, and this hissing noise during bluetooth usage is basically making it a junker. I'm so discouraged at this point, I don't know what to do.'
Happy to provide any other info, photos, etc. as needed (just not sure what other details will be helpful).
I see a million solutions for when the BT board and amp are separate boards, but I am looking for a solution to resolve this in my all-in-one board. I have not found an actionable solution that I understand yet.
Does anyone have any practical suggestions that a non-electrical engineer can understand and implement?
I am relatively new to this stuff (though I can solder, e.g. I've successfully swapped bad capacitors on TVs , etc.).
I have SO Many hours into this build, nearing the end, and this hissing noise during bluetooth usage is basically making it a junker. I'm so discouraged at this point, I don't know what to do.'
Happy to provide any other info, photos, etc. as needed (just not sure what other details will be helpful).
While I don't use a Sanwu model (I have a Wuzhi TB-21), the same awful hissing is present. I suspect the JL chip (or surrounding circuitry) to be the culprit.
Mine uses a different chip than yours, which has only a few big legs and can be desoldered quite easily. I'm afraid you'll have to connect a better BT module to the AUX port (I had to do that to remove the hissing).
Mine uses a different chip than yours, which has only a few big legs and can be desoldered quite easily. I'm afraid you'll have to connect a better BT module to the AUX port (I had to do that to remove the hissing).
Yes, that's pretty much what I landed on. Man this stuff is FRUSTRATING. So much garbage out there.
HATE that I have to do that too, as I've already had a faceplate made.
The HISS is so bad the unit would be un-usable (at least for me) as it is, so I guess no other choice.
HATE that I have to do that too, as I've already had a faceplate made.
The HISS is so bad the unit would be un-usable (at least for me) as it is, so I guess no other choice.
Do you know if I can just solder a connection from an external BT module onto the pins/legs of that AUX port (in a sense, doubling up on it)?
I'd like to leave the port in-tact ( and working) if possible, so that i can still use it as well (not at the same time, of course).
I'd like to leave the port in-tact ( and working) if possible, so that i can still use it as well (not at the same time, of course).