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Front Panel Audio connector, there a standard?

J

jamesavery22

Weaksauce
Joined
May 18, 2005
Messages
123
I got a micro-atx 6100 board off of ebay for real cheap. Its from a Thinkcentre a60, lenovo 87H4658. Works great, just want to figure out the pins on the front panel audio connector. Is there any chance this is a standard plug?

Pic of the mobo front audio connector:

6fjc1g2.jpg


Measured some of the pins.

7 pins on the top row 6 pins on the bottom.

  1. Top Row, from Left to Right
    1. GND
    2. No Voltage
    3. No Voltage
    4. When measuring V it starts at ~1v and slowely goes down.
    5. When measuring V it starts at ~1v and slowely goes down.
    6. When measuring V it starts at ~1v and slowely goes down.
    7. GND
  2. Bottom Row, from Left to Right
    1. No Voltage
    2. +5.10v
    3. GND
    4. No Voltage
    5. No Voltage
    6. +4.85v

Sooo any one have any clue what I should be connecting to these?

For my front audio panel I have two sets of wires. One for Mic and one for Speakers/headphones.

  1. Mic wires
    1. Mic in
    2. Mic GND
    3. Mic Power
  2. Speaker Wires
    1. Left +
    2. Left -
    3. GND
    4. Right +
    5. Right -


I can obviously guess for GND. How much voltage is the Mic power supposed to be? Both the +V on the mobo are close to 5v but ones a little high and ones a little low :confused:

I'm clueless on actual analog audio channels. I figured I'd see some weird very low voltage values like the 3 in the top row of pins but there are only 3. I was expecting 4. 2 for the left speaker and 2 for the right speaker. I also assumed I'd see two pins that showed no voltage at all for the mic input. But there are 5...

Can anyone help me? Please?
 
That's definitely a non-standard audio header on your board. I'm not finding any pinout information on it either. Try contacting the board manufacturer. They probably have that information.
 
Been doing that all day. Lenovo/IBM desktop support can ********* it. ***** impolite *******... They say no such documentation exists... Maybe somewhere on the FCC website?
 
I doubt the FCC will have that information available. Is there a separate header for the front panel USB, or is it combined onto the audio header?

edit: it's separate.

Your best bet is to try to find someone who has a thinkcentre system (with the case) and ask them if they would do some continuity mapping on the jacks.
 
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