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- Speaker to Sound Blaster Amplifier Converter
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- There has always been times that I would like to control my speakers volume
- level ( louder or softer ) than what the pc does. Since the sound blaster uses
- external speakers and incorporates an amplifier, I will show you a 1 wire
- connection to make this simple adaptor..
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- PARTS REQUIRED
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- 1 micro hook radioshack 270-355 (if you don't want this permanent.
- 1 1,000 ohm resister (1Kohm) 1/4 watt will due..
- 1 shorting jumper radioshack 276-1512 (used to connect to motherboard)
- manual from your mother board
- sound blaster card
- screwdriver, solder, soldering iron, tape or heat shrink tube, 12 inch or so
- thin wire.
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- For temporary connection:
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- micro hook 1k resistor 1 shorting jumper
- J------------------/\/\/\/\-----------------n
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- (Tape or shrink any connections after solder or bare wire)
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- Unplug your computer, open the case, remove the soundblaster card, with the
- screwdriver. Identify R4 R3 by the mike jack, volume control.
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- Block diagram of sound blaster
- ------------------------------------------------------------------------|
- |
- R4 (A) ---- |
- --/\/\/\-| ! MIC |
- -/\/\/\-| ---- |
- R3 (B) |
- () c38 |
- () c37 |
- |
- (( |
- ( volume
- ( control
- (( |
- -----------------------------------------------------------------------|
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- Connection points (A), (B) are the 2 separate channels (left speaker / right
- speaker) which ever is best in your situation. Connect the micro hook clip to
- either point (A) or point (B) but not both. Now you can put your sound blaster
- card back into the computer slot.
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- Next open your mother board manual. Read and identify the speaker jack.
- on mine it is a 4 pin jack.. 1)speaker data 2)no connect 3)ground 4)+5vdc.
- Identify the SPEAKER DATA pin. Now connect the remaining wire from the sound
- blaster, to the mother boards speaker data pin.
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- You are all ready to close the computer, and plug the power cord back in.
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- This Hardware Hack is made available form:
- DIGITAL IMAGES (414) 338-9999
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