nobsound mo-gu drok f900 dual tpa3110 amp

[smile2]

Cheap and good sounding amp.
I couldn't find any pictures of the inside on the internet.
My second order came in damaged, so i could take some pictures of the printed circuit.

 

[redkid]

Thank you for posting. I have one on the way myself.

 

[wwenze]

That soldering...

I guess it is cheaper than having connectors

 

[panda360]

I have one, good sound with blue tooth connected. Seems I need to change 2 capacitors.

 

[horst303]

wonder which is the chip that produces that annoying voice over.

 

[easp]

What are the markings the chip on the lower-right hidden by the wires? My guess is that it is the Bluetooth DAC/SoC, Which probably makes it responsible for the annoying voiceover.

 

[horst303]

Cheap and good sounding amp.
I couldn't find any pictures of the inside on the internet.
My second order came in damaged, so i could take some pictures of the printed circuit.

View attachment 548479

View attachment 548480

with the benefit of insight is there a way to remove the case without causing damage?

 

[smile2]

removing the case:

remove 4 screws behind the sticker on the speaker terminal side.
unscrew the pot meter.
slide out the amp board.



The other side looks the same, but you don't have to remove those ( photo )

regards jan

 

[patrick131184]

Does anyone find a way to disable these annoying startup/bluetooth sounds?

What Bluetooth Chip is used in this amp?
The cable on these pics is covering the model number

 

[wrybread]

I just got this amp and opened it up, here are some pics. It's easy enough to open up, but you'll probably damage the sticker on the front (the one on the power switch side).

I'll probably swap out the two big capacitors, but what I'd *really* love to do is disable that heinous jingle when the unit first powers on. I can't imagine anyone thinking that was a good idea.

Another nice mod would be to add a bluetooth "connect" button. it's all fine when using it with a single device, but if you're using it with 8 devices and left one connected, it can be a task to figure out which one is connected. I don't imagine anyone knows of a way to add a bluetooth "connect" button to this amp?

 

[wrybread]

Oops, forgot to add the pics:

Let me know if any other pics are needed.

 

[Danilo de Arruda Lin]

Witch caps do you recommend?

 

[rozzilla]

maybe it could be easier to add capacitance outside the boxe shunting psu connector , or not ?