Difference between revisions of "MB PRO"
Malvineous (Talk | contribs) (Document TAD -> MB_PRO adapter cable) |
(Line outs on MB_PRO confirmed personally. Also, tried out building an AC'97 mod. Also the only reference in the article is dead) |
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− | 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" | {|class="wikitable" | ||
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| 4 || Audio GND | | 4 || Audio GND | ||
|- | |- | ||
− | | 5 || Line | + | | 5 || Line out left |
|- | |- | ||
| 6 || Audio GND | | 6 || Audio GND | ||
|- | |- | ||
− | | 7 || Line | + | | 7 || Line out right |
|- | |- | ||
| 8 || Modem speaker input. On a sound card, this input receives a line-level audio signal from the modem. | | 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?''' | | 10 || Microphone in '''Isn't this mic out for the modem?''' | ||
|} | |} | ||
+ | |||
+ | == AC'97 mod == | ||
+ | It is possible to connect AC'97 front panel pins to a MB_PRO header, although it's still a work in progress. | ||
+ | |||
+ | {|class="wikitable" | ||
+ | ! AC'97 pin !! Sound card<br/>MB_PRO pin !! Purpose | ||
+ | |- | ||
+ | | 5 || 7 || Line out right | ||
+ | |- | ||
+ | | 6 || 6 || Line out right GND | ||
+ | |- | ||
+ | | 9 || 5 || Line out left | ||
+ | |- | ||
+ | | 10 || 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. | ||
+ | |||
+ | '''NOTE: If you connect it like this, the line out coming through the MB_PRO header will be orders of magnitude quieter.''' | ||
== TAD conversion == | == TAD conversion == |
Revision as of 08:46, 20 July 2022
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:
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:[1]
Pin | Purpose |
---|---|
1 | Audio GND |
2 | Key, no pin |
3 | Line-in |
4 | Audio GND |
5 | Line out left |
6 | Audio GND |
7 | Line out right |
8 | Modem speaker input. On a sound card, this input receives a line-level audio signal from the modem. |
9 | Audio GND |
10 | Microphone in Isn't this mic out for the modem? |
AC'97 mod
It is possible to connect AC'97 front panel pins to a MB_PRO header, although it's still a work in progress.
AC'97 pin | Sound card MB_PRO pin |
Purpose |
---|---|---|
5 | 7 | Line out right |
6 | 6 | Line out right GND |
9 | 5 | Line out left |
10 | 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.
NOTE: If you connect it like this, the line out coming through the MB_PRO header will be orders of magnitude quieter.
TAD conversion
Some sound cards have an MB_PRO connector but no TAD connector. A cable can be made to allow internal modems with a TAD socket to be hooked up to the MB_PRO connector:
Modem TAD pin |
Sound card MB_PRO pin |
Purpose |
---|---|---|
1 | 8 | Phone line audio, from modem to sound card. |
2 | 6 | GND |
3 | 9 | GND |
4 | 10 | Microphone audio, from sound card to modem. |
TAD pins 2 and 3 can also be patched to any of the other GND signals on the MB_PRO connector if that is more convenient. The two in the above table are just one possibility.
References
- ↑
Creative Labs - Pin Assignment of I/O Jacks and Connectors on Sound Blaster DevicesLink dead, need archived mirror