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Apologies, I didn't know you were referring to the iPod 3G. I can't speak of low- or high-quality sound coming from either one, but the datasheet states that the headphone outputs are optimized for a 16 Ohm to 32 Ohm load. This detail means that if one is hooking up a headphone amp with, say, 10 kOhm input impedance, I don't believe the DAC would be performing at its best. It looks like it's a simple inverting amplifier that we're looking at, but again, the datasheet specifies 16 Ohms to 32 Ohms for the headphone outputs. Stick with the line out.
pkjames:
Absolutely, as long as you don't irrevocably destroy anything along the way.
__________________
"Ears that hear and eyes that see - the LORD has made them both." Proverbs 20:12
Team University-fi | Team Edmonton-and-Surrounding-Urbanities(1)(2)
Absolutely, as long as you don't irrevocably destroy anything along the way.
Thanks for the clarification joneeboi. I think it is actually kinda hard to "not to destroy"anything, but just have to make sure it is recoverable is the key
But for some reason the battery won't hold charge anymore.
I charge it overnight, in the morning it says fully charge, I disconnect the AC adapter and leave the ipod alone for about 8 hrs and when I come back it gives me the dead battery sign (battery with a question mark) and turns off.
I changed the battery to a new one (tried 3 different batteries actually), but still same problem. Then I finally changed the logic board out.
I thought maybe the logic board was messed up because I plugged in the AC adapter to the ipod for about a week straight to burn in the new caps. So maybe I overloaded the charging circuit somehow.
Still the same problem.
Any ideas/tips?
I have no idea why it's draining the battery like that. I'm pretty sure when I initially completed the mod, this problem did not arise.
I didn't change/alter anything to the mod, took out old caps c84/86, and grounded from the headphone jack to 1 of 2 of these big pads near the dock side (maybe that's why??)
I'm not sure why it would do this, the other reason i can think of (for my 4th gen) is maybe when I made a ground wire (from head phone jack), it's someone discharging the battery :\
Are you accessing the DAC through the dock or through the headphone jack? I don't understand why you needed to ground anything unless you used some kind of external jack like I did on my first mod. Whether you go through the headphone jack or the dock, you never need to add your own ground wire. That could be the source of the problem.
edit: You might want to disconnect the wires and see if the voltages between the ground wires are indeed the same. If they aren't, there probably is current flowing from one to the other that is causing the battery to run out of power.
Lil' Knight:
I think we're going to need a bit more clarification to be of any use.
__________________
"Ears that hear and eyes that see - the LORD has made them both." Proverbs 20:12
Team University-fi | Team Edmonton-and-Surrounding-Urbanities(1)(2)
edit: You might want to disconnect the wires and see if the voltages between the ground wires are indeed the same. If they aren't, there probably is current flowing from one to the other that is causing the battery to run out of power.
I connected to headphone out~
I added the ground b/c i was advised to do so by another head-fier heh
You mean disconnect the ground wire from the board and test the ptn on the logic board I used as the ground for voltage?
