Apple Sound Cards Service Manual
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Service Source
Sound Cards
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Service Source
Specifications
Sound Cards
Specifications Spectrum 16/SCSI/Sound Card - 1
Spectrum 16/SCSI/Sound Card
Processor
Volume Control
Signal Audio Output
Dynamic Range and
Signal to Noise
8-, 12-, and 16-bit PCM 2 kHz–44 kHz in stereo
Dynamic filtering 4 Hz–20 kHz programmable
Yamaha YMF262 (OPL-3) 20-voice synthesizer
Master volume: 0 to –62 dB (1 dB/step)
Input mixer +1 to –60 dB (2 dB/step)
1 V p-p reference
Synthesized and mixed audio: 90 dB
Sampled audio PCM: 90 dB
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Specifications Spectrum 16/SCSI/Sound Card - 2
Frequency Response
System Requirements
30 Hz–20 kHz (=/–3 dB)
80386SX-based personal computer or greater running at 25 MHz
or faster
4 MB of RAM or greater
10 MB of available hard disk space
VGA color display
5.25: half-height expansion bay
ISA internal expansion slot
Microsoft Windows version 3.0 or later and MS-DOS 5.0 or later
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