Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › help required for DIY iMod 5.5G video Dock
New Posts  All Forums:Forum Nav:

help required for DIY iMod 5.5G video Dock

post #1 of 5
8/28/10 at 11:15am
Thread Starter 

hi guys, i met with a problem with DC offset and wish to seek whatever help i can get from here.

 

I have recently done diymod on my ipod, as such i require a cap to block off the DC offset. 

 

The dc out from ipod is 1.5V.

 

my connection is as follows

 

 

 

L out from Ipod > | | (cap) > To amplifier L

 

 

R out from Ipod > | | (cap) > To amplifier R

 

 

G from Ipod > To amplifier G

 

 

 

with the above connection, i still detect a DC offset 200mV at the output.

 

The cap i used are Mcap MKP film cap, 2.2uF 400Vdc

 

can anyone advise me what went wrong and how do i remedy it?


Edited by Cloud - 8/28/10 at 11:38am
Reply
post #2 of 5
8/28/10 at 4:33pm

Bad caps?  Should be 0VDC after cap, that's kind of the idea of a coupling capacitor.

Reply
post #3 of 5
8/29/10 at 1:49am
Thread Starter 

is my connection correct?

 

i tried changing to another 0.22uF wima 100vdc, the result is the same.

 

what else could be wrong?

Reply
post #4 of 5
8/29/10 at 2:18pm

Output of what?  How are you measuring?

Reply
post #5 of 5
8/29/10 at 4:21pm
Thread Starter 
Quote:
Originally Posted by FallenAngel View Post

Output of what?  How are you measuring?

 

L out from Ipod > | | (cap) > To amplifier L

 

 

R out from Ipod > | | (cap) > To amplifier R

 

I measure between "To amplifier L" and G for left output and between "To amplifier R" and G for right output.

Reply
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › help required for DIY iMod 5.5G video Dock