My NAXA NPB-273 player turns on but does not play any sound.

[Chanito]

I had this player forgotten in a corner of my room, my father brought it but it did not work, it turns on and even connects to bluetooth but does not play any sound, I opened it to check it, I looked at each component and apparently has no problem, only a burned resistance of 200ohm that I replaced, however it still does not give sound.
Can anyone help me to see if there is a problem in the board or any possible solution?

 

[hopey]

Throw it in the bin and save yourself some time.

 

[Fatdog]

Some of those traces appear to have been repaired by an unsteady hand at some point. Along with low Chinese quality and no service manual, I would almost suggest finding a replacement.

 

[Superduper]

95% of the time, component failure has no outward physical signs. I can't imagine looking at a photo of a board like that would yield any clues.

 

[hopey]

Unfortunately the new D Class amp chips are very sensitive to over voltage. Plug in the wrong power supply and your toast. It doesn't damage other components just the chip. You could buy a new one ( if you can find same chip) there only $5.



This is a weakness that keeps the product cheap.

 

[hopey]

Check continuity of the tracks and looks like a hot spot bottom left too.

 

[caution]

That's actually by design. Those areas you circled are actually just strips of the ground flood that are free of mask so that they'll absorb solder during wave soldering, to knock down their inductance/resistance