19.007 I just got a Phasor Sound Card and now I need some info. What are the 4 DIP switches used for? What are the 2 POTs used for? And, where can I get programming information?
Description
This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
19.007 I just got a Phasor Sound Card and now I need some info. What are the 4 DIP switches used for? What are the 2 POTs used for? And, where can I get programming information?
The Phasor is a great sound card. Offers you 12 sound channels (using all
sorts of wave-form patterns and effects, simular to FM-synthesis in IBMs), 4
white noise generators (synthesized drums, etc) and a 1-voice synthesized
speech channel, expandable to 2 speech channels. Has a 4 watt amplifier that
can drive stereo speakers (left & right). It's compatible with most older sound
cards, like the Mockingboard, ALF, SMS and Echo+. Few programs ever supported
it, let alone many programs out there that sup
ported the older cards. It did, however, come with some decent software that
showed off the card's features and let you experiment with it a bit.
The four DIP switches control emulation modes and standard Apple ]
[ internal speaker sound-level (only if you disconnect internal speaker and
have old speaker toggling sent to Phasor). Switches #1 and #2 are for
emulations. Switches #3 and #4 control your old internal speaker sounds, again,
if you have speaker disconnected and that pin location on motherboard
connected to Phasor.
You can set Low, Medium and High volume with three different DIP
positions. This doesn't affect Phasor music/sound however. To do that, you must
turn those two pots you asked about. Each controls either the left or right
stereo channel. Turning them clock-wise increases volume, and you probably
don't want this too high up, or sound gets distorted! Put both on an equal
setting, unless you want one channel louder/softer than the other.
Phasor DIP switch emulation modes:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Native Phasor mode: 1: closed, 2: closed
Mockingboard mode: 1: opened, 2: closed
Echo+ mode: 1: opened, 2: opened
(Never got the Echo+ mode to work!)
For more information see FAQs Resource file R013PHASOR.TXT .
By: Adrian Whichello
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