MB PRO - Revision history

Grep: Updated info about AC'97 mod

2022-08-12T23:19:11Z

Updated info about AC'97 mod

Grep: Line outs on MB_PRO confirmed personally. Also, tried out building an AC'97 mod. Also the only reference in the article is dead

2022-07-19T21:46:42Z

Line outs on MB_PRO confirmed personally. Also, tried out building an AC'97 mod. Also the only reference in the article is dead

Malvineous: Document TAD -> MB_PRO adapter cable

2017-03-12T09:58:48Z

Document TAD -> MB_PRO adapter cable

Malvineous: Clarify modem speaker input

2017-03-12T09:46:23Z

Clarify modem speaker input

Malvineous: Add pinouts

2017-01-26T07:35:23Z

Add pinouts

New page

The '''MB_PRO''' connector is used to connect a Sound Blaster card to a Modem Blaster card. The signals can also be re-purposed for other uses.

The pin arrangement is as follows:

{|class="wikitable"
| 9 || 7 || 5 || 3 || 1
|-
| 10 || 8 || 6 || 4 || N/C
|}

The purpose of the pins, from the point of view of the sound card, are:<ref>[http://support.creative.com/kb/ShowArticle.aspx?sid=3026 Creative Labs - Pin Assignment of I/O Jacks and Connectors on Sound Blaster Devices]</ref>

{|class="wikitable"
! Pin !! Purpose
|-
| 1 || Audio GND
|-
| 2 || Key, no pin
|-
| 3 || Line-in
|-
| 4 || Audio GND
|-
| 5 || Line left '''TODO: Is this line out?'''
|-
| 6 || Audio GND
|-
| 7 || Line right (out?)
|-
| 8 || Modem speaker input
|-
| 9 || Audio GND
|-
| 10 || Microphone in '''Isn't this mic out for the modem?'''
|}

== References ==
<references/>

@@ Line 43: / Line 43: @@
 | 5 || 7 || Line out right
 |-
-| 6 || 6 || Line out right GND
+| 2 || 6 || Line out right GND
 |-
 | 9 || 5 || Line out left
 |-
-| 10 || 4 || Line out left GND
+| 2 || 4 || Line out left GND
 |}
-Maybe in the future, this table might get a microphone update if it's even possible. AC'97 lists a thing called "microphone power" and that seems nowhere to be found on MB_PRO.
+For now it seems that all ground must go to pin 2 on AC'97 side. Some pinouts say that pins 4, 6 and 10 are ground, but that is demonstrably untrue. Those pins are for plug detection of associated pins.
+Microphone seems to be located on pin 10 on MBPRO side of things and should go to pin 1 on AC'97, but it's quite possible that auxilary power will be required for pin 3 on AC'97.
 == TAD conversion ==

@@ Line 9: / Line 9: @@
 |}
-The purpose of the pins, from the point of view of the sound card, are:<ref>[http://support.creative.com/kb/ShowArticle.aspx?sid=3026 Creative Labs - Pin Assignment of I/O Jacks and Connectors on Sound Blaster Devices]</ref>
+The purpose of the pins, from the point of view of the sound card, are:<ref><s>[http://support.creative.com/kb/ShowArticle.aspx?sid=3026 Creative Labs - Pin Assignment of I/O Jacks and Connectors on Sound Blaster Devices]</s> Link dead, need archived mirror</ref>
 {|class="wikitable"
@@ Line 22: / Line 22: @@
 | 4 || Audio GND
 |-
-| 5 || Line left '''TODO: Is this line out?'''
+| 5 || Line out left
 |-
 | 6 || Audio GND
 |-
-| 7 || Line right (out?)
+| 7 || Line out right
 |-
 | 8 || Modem speaker input.  On a sound card, this input receives a line-level audio signal from the modem.
@@ Line 34: / Line 34: @@
 | 10 || Microphone in '''Isn't this mic out for the modem?'''
 |}
 == TAD conversion ==