Difference between revisions of "Creative Sound Blaster Pro 2"

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(Rename Dupont connectors)
(Add audio extension connector pinouts)
 
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Image:Creative Sound Blaster Pro 2 early underside.jpg|Underside of early revision
 
Image:Creative Sound Blaster Pro 2 early underside.jpg|Underside of early revision
 
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== Jumpers ==
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=== JP2: Audio extension connector ===
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These pins provide speaker output and microphone input for interfacing with other cards<ref name="getting-started">Sound Blaster Pro - Getting Started manual, section D-2.</ref>.  They are located just behind the mic/line jacks.
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{|class="wikitable"
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! Pin !! Name !! Purpose
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|-
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| 1 || MICR || Mic input, right channel.  Input from 0.004 to 0.7 V rms.
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|-
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| 2 || MICGEN || Mic input, ground.
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|-
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| 3 || MICL || Mic input, left channel.  Input from 0.004 to 0.7 V rms.
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|-
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| 4 || SPKGND || Speaker output, ground.
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|-
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| 5 || SPKR || Speaker output, right channel.  Maximum output voltage is 3 V rms at 4 ohms.
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|-
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| 6 || SPKL || Speaker output, left channel.  Maximum output voltage is 3 V rms at 4 ohms.
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|-
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| 7 || SPKRL || Speaker output return, left channel.
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|-
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| 8 || SPKRR || Speaker output return, right channel.
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|}
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=== JP3: PC Speaker output connector ===
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These pins provide an output<ref name="getting-started"/> that can be connected to the internal PC speaker, to allow all audio from the card to be heard through the internal speaker.  It is currently unknown whether this output is muted when the line-out jack is in use.  The jumper is located next to JP2.
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{|class="wikitable"
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! Pin !! Name !! Purpose
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|-
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| 1 || SPKR || Speaker output, right channel.  Maximum output voltage is 3 V rms at 4 ohms.
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|-
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| 2 || SPKRR || Speaker output return, right channel.
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|}
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== References ==
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<references/>

Latest revision as of 23:28, 8 January 2017

Creative Sound Blaster Pro 2
Creative Sound Blaster Pro 2.jpg
Bus type ISA
Bus width 16-bit
Bus speed 8 MHz
8-bit ISA compatible? Yes
Manufacturer Creative Labs
Chipset CT1336A
Compatible with Sound Blaster
Connectors Mic, Line out, Speaker out, Gameport
Requires -5VDC? No
Requires -12VDC? Yes
Config method Jumpers
Audio
Model CT1600
Full duplex Unknown
Max sample rate Unknown
Channels 2
FM synth OPL3
Internal
connectors
CD Audio in:SBCD
PC Speaker in:Dupont-2
Aux in:None
Phone (TAD) in/out:None
Line out:None
SPDIF out:None
MB_PRO:No
SB Link:No
Factory memory 0
0 B
CD interface Matsushita MKE
Driver Missing download URL

The Sound Blaster Pro 2 was a revision to the original SB Pro, replacing the dual OPL2 chips with a single OPL3. The card is technically only an 8-bit one - the extra connectors that fit into the 16-bit slot are only used for selecting IRQ 10 and/or DMA 0.

Additional photos

  • Underside

  • Early revision with fewer SMD chips

  • Underside of early revision

Jumpers

JP2: Audio extension connector

These pins provide speaker output and microphone input for interfacing with other cards[1]. They are located just behind the mic/line jacks.

Pin Name Purpose
1 MICR Mic input, right channel. Input from 0.004 to 0.7 V rms.
2 MICGEN Mic input, ground.
3 MICL Mic input, left channel. Input from 0.004 to 0.7 V rms.
4 SPKGND Speaker output, ground.
5 SPKR Speaker output, right channel. Maximum output voltage is 3 V rms at 4 ohms.
6 SPKL Speaker output, left channel. Maximum output voltage is 3 V rms at 4 ohms.
7 SPKRL Speaker output return, left channel.
8 SPKRR Speaker output return, right channel.

JP3: PC Speaker output connector

These pins provide an output[1] that can be connected to the internal PC speaker, to allow all audio from the card to be heard through the internal speaker. It is currently unknown whether this output is muted when the line-out jack is in use. The jumper is located next to JP2.

Pin Name Purpose
1 SPKR Speaker output, right channel. Maximum output voltage is 3 V rms at 4 ohms.
2 SPKRR Speaker output return, right channel.

References

  1. ↑ 1.0 1.1 Sound Blaster Pro - Getting Started manual, section D-2.
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