Hardware O3DS XL, volume slider and 3D slider seem to be connected somehow?

[ric.]

Halp.
I bought a used O3DS LL that came hacked with rxTools installed (sysnand 4.2, emunand is 10.1).
When I first got it the volume seemed a bit low - at least lower than my small O3DS on 9.9, but it wasn't until I got home that I noticed that the volume actually becomes LOWER when the 3D is on - and it gradually goes up when the 3D is turned off.
Not to mention the volume slider is kind of unresponsive - if I slide it all the way down it takes a while for the volume to become lower (and even then, the music can still be heard, but barely). Same thing happens when I slide it all the way up, it takes a bit for the volume to gradually become higher, and it's not that high compared to my other O3DS. Is the O3DS XL generally quieter than the regular O3DS?
What I'm asking is, what could be the problem? The volume slider? The 3D slider? Both? Other than this the system works fine, and while I can live without 3D, I would like the volume to go a little higher.

 

[SmileCitrus]

Yikes, that's a strange problem. I don't know about what would cause most of those issues, but yes, in my experience the O3DSXL is significantly quieter at max volume compared to the regular O3DS. The speakers are actually slightly smaller in the O3DS XL compared to the regular one.

 

[ric.]

Yikes, that's a strange problem. I don't know about what would cause most of those issues, but yes, in my experience the O3DSXL is significantly quieter at max volume compared to the regular O3DS. The speakers are actually slightly smaller in the O3DS XL compared to the regular one.

Thanks for the reply.
I'd like to add to the first post - I noticed that when I press left on the D-Pad the volume becomes normal for a moment (as in, if the volume slider is all the way up, pressing Left will make the sound louder, as it should be, same when the slider is all the way down.) The 3D slider still turns the volume down though.
Any help would be appreciated.

 

[gudenau]

Sounds like there is something inside that should not be there, if that is the case then be glad it did not die.

 

[loco365]

I'm wondering if it has to do with power drain. The screen might be drawing more power than the system can adequately provide, and there's probably a fault with some wiring or resistors in the system. That's my best guess.

 

[ric.]

Sounds like there is something inside that should not be there, if that is the case then be glad it did not die.

So, what is the best course of action? Just open the sucker up and see if I can remove whatever it is that's gotten in there? How easy is it to disassemble a 3DS XL?

 

[ric.]

Update: I've disassembled the 3DS and it doesn't seem like there's anything out of place. There's no loose screws or anything that seems out of place, so at least I can sleep safe knowing the console won't die on me all of sudden. Hopefully.

I suppose there's nothing I can do about it other than disable the 3D from the Parental Settings and wait until I can take it to a technician, right? I'd love to mess with it myself but I'd rather not break it since all the internal components seem so fragile and sensitive (especially those tiny-ass ribbon cables!)