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Troubleshooting A Sound Board 1209
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| Troubleshooting A Sound Board 1209 If you are using DOS or Windows 3.1, disable SmartDrive from both CONFIG.SYS and AUTOEXEC.BAT, then restart the computer for your changes to take effect. If problems continue (or you are using Windows 95), an excessive processing load on the system might be caused by virtual memory orbit access. Follow the recommendations under Symptom 41-15. Symptom 41-17. Pops and clicks occur when playing back or recording any sound file Inmost cases, there is a wiring problem with the speaker system. Check all of your cabling between the soundboard and speakers. If the speakers are powered by ac, be sure that the power jack is inserted properly. If the speakers are powered by battery, be sure that the batteries are fresh. Check for loose connections. If you cannot resolve the problem, try some new speakers. If the problem persists, replace the soundboard. Symptom 41-18. The soundboard plays back fine, but it will not record The board probably records fine in DOS, but not in Windows. If the soundboard is using bit DMA transfer (typical under Windows, two DMA channels are in use. Chances are that one of those two DMA channels are conflicting with another device in the system. Determine the DMA channels being used under Windows, then check other devices for DMA conflicts. If you are using Windows 95, check the Device manager and look for entries marked with a yellow icon. Symptom 41-19. A DMA error is produced when using a soundboard with an Adaptec 2842 controller in the system This is a known problem with the Digital Audio Labs DOC product and the Adaptec 2842. You will need to alter the controller’s FIFO buffer. Go in the controller’s Setup by hitting 1542 controller in the system This is a known problem with the Digital Audio Labs DOC sound product and the Adaptec 1542. The problem can usually be resolved by rearranging the DMA channels. Place the Adaptec controller on DMA 7, then place the soundboard on DMA 5 for playback and DMA 6 for recording. Symptom 41-21. The sound card will not play or record—the system just locks up when either is attempted The board will probably not play in either DOS or Windows, but might run fine on other systems. This is a problem that has been identified with some soundboards and ATI video boards. ATI video boards use unusual address ranges, which sometimes overlap the IO address used by the soundboard. Change the soundboard to another IO address. Symptom 41-22. The sound card will record, but will not playback Assuming that the soundboard and its drivers are installed and configured properly, chances are that a playback oscillator on the soundboard has failed. Try replacing the soundboard outright. Download 1.89 Mb. Share with your friends:
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