Dingux (Dingoo Linux) > Releases
Second OpenDingux developer prerelease
NESFreak:
--- Quote from: Ayla on September 21, 2011, 07:29:14 PM ---Please NEVER DO THAT.The "earphones" plug and the "TV-out" plug does not have the same impedence. In short, if you plug your earphones on the "TV-out" plug you will toast your earphones (I did burn mine...), and on the other hand, if you plug a line-out on the "earphones" plug, you risk to toast your audio system.
--- End quote ---
You're wrong there. Let me explain this. The output voltages of both ports are the same, however the bottom one is supposed to be used as line-out devices to connect to a tv's line-in (which often have a high impedance, think as high as 10kOhm).
Now the formula for impedance is given by
Z = V / I, where Z impedance, V voltage and I current.
Now since headphones often have a lower impedance (mine has 32Ohm) this means the current drawn by headphones is many times larger than comparered to connecting the dingoo's line-out to a line-in. So if at all something is to be going to be blown up it would be the dingoo's interal amp, not the headphones. I guess you've just had bad luck with your headphones.
Megacubo:
I'm using the tv-out for headphones since the first day and nothing wrong happens, my dingoo have 2 months with me maybe i'm lucky
pcercuei:
I do know what you are trying to explain, and your conclusion is right. For some reason I did inverse the conclusion, probably because it did make more sense to me (as I burned my Shure earbuds).
New theory. The TV-out and earphone outputs are both connected to the same amp. I just remembered that when I did fry my earbuds, I was working on the sound driver, and I had another pair of earphones plugged on the earphones jack. I strongly doubt it is a coincidence.
NESFreak:
--- Quote from: Ayla on September 22, 2011, 12:08:49 AM ---New theory....
--- End quote ---
Wouldn't know about that. Sounds like an expensive accident.
I've got a tv-out bug btw. It seems to be misaligned. See the attached picture.
qbertaddict:
I do not have that issue. Are you using pal or ntsc and what region are you in
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