Front Panel Audio Header - Cheap PC Show Rig

[tombstone]

Hey guys!

I've been working on my daughters PC that was purchased from a PC show a couple of years ago. They neglected to hook up her front audio ports, which she now needs for cyber school.

I took at look at the MB, which is a PC Chips M825, and found the front audio header. The pin designation is as follows:

1 - MIC
2 - GND
3 - MIC-P
4 - VCC
5 - AUD_FPOUT_R
6 - AUD_RFT-R
7 - NC
8 - KEY
9 - AUD_FPOUT_L
10 - AUD_RFT_L

The wires for the front panel that were provided with the case are as follows:

(2) Grounds
(1) MIC
(1) R-OUT
(1) L-OUT
(1) R-RET
(1) L-RET

I've matched up what I could, leaving (1) of the ground wires disconnected and pins 3,4, and 8 w/o connections. The headphones work fine, but the MIC doesn't. Would this be due to the second ground? If so, where should it go?

This wouldn't be a big deal, but I just found out that she crawls under the PC desk when she wants to change from headset to speakers. I know I could use a 1/8" "Y" cable from Radio Shack, but where would the fun be w/o trying to troubleshoot.

Thanks again guys!!

Jeff

[Alaron]

Did you try the MIC from the case in both 1 - MIC and 3 - MIC-P ?

[tombstone]

Thanks for the input.

This is what I've done since the time of my first post.

I had the front panel wire marked "MIC" on pin one - microphone didn't funcion.

I put the second ground wire on pin 3 identified as "MIC-P" - microphone and sound didn't work.

I removed the second ground and moved the wire marked "MIC" from pin 1 to pin 3, the one identified as "MIC-P" - sound was back, but no microphone.

The only pins I haven't tired are "VCC" and "KEY" ...

Any other thoughts?

Thanks in advance!

Jeff

[tombstone]

Problem solved ... it helps if you start counting pins from the correct "pin one".

Oh well ... at least it was easy!

Have a great evening!

Jeff