Com 226 comp trouble shooting II theory book
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| 1210 Sound Boards Symptom 41-23. The sound application or editor produces a significant number of DMA errors This type of problem is known to occur frequently when using the standard VGA driver that accompanies Windows—the driver is poorly written and cannot keep up with screen draws. Try updating your video driver to a later, more efficient version. If the driver is known to contain bugs, try using a generic video driver that is written for the video board’s chipset. Symptom 41-24. The soundboard will not record in DOS Several possible problems can account for this behavior. First, suspect a hardware conflict between the soundboard and other devices in the system. Be sure that the IRQs, DMA channels, and IO port addresses used by the soundboard are not used by other devices. If the hardware setup appears correct, suspect a problem between DOS drivers. Try a clean boot of the system (with no CONFIG.SYS or AUTOEXEC.BAT). If sound can be run properly now, there is a driver conflict. Examine your entries in CONFIG.SYS or AUTOEXEC. BAT for possible conflicts or for older drivers that might still be loading to support hardware that is no longer in the system. Finally, suspect the hard-drive controller. Try setting up a RAM drive with RAMDRIVE. SYS. You can install a RAMdrive on your system by adding the line device=c:.sys e 8000 The 8000 is for MB worth of RAM—be sure that enough RAM is in the PC. Once the RAMdrive is setup, try recording and playing from the RAMdrive (you might have to specify anew path in the sound-recorder program. If that works, the hard-drive controller might simply be too slow to support the soundboard, and you might need to consider upgrading the drive system. Symptom 41-25. When recording sound, the system locks up if a key other than the recorder’s hotkeys are pushed This is a frequent problem under Windows x. The system sounds (generated under Windows) might be interfering with the sound recorder. Try turning off system sounds. Go to the Main icon, choose the Control panel, then select Sounds. A box will appear in the lower left corner marked Enable system sounds. Click on this box to remove the check mark, then click OK. Symptom 41-26. After the soundboard driver is loaded, Windows locks up when starting or exiting In virtually all cases, you have a hardware conflict between the soundboard and another device in the system. Be sure that the IRQs, DMA channels, and IO port addressed used by the soundboard are not used by other devices. Symptom 41-27. When using Windows sound-editing software, the soundboard refuses to enter the digital mode—always switching back to the analog mode Generally speaking, this is a software-configuration issue. Be sure that your editing (or other sound) software is set for the correct type of soundboard (i.e., an AWE instead of a Sound Blaster Pro. If problems persist, the issue is with your sound drivers. Check the drivers section of the Windows SYSTEM.INI file for your TROUBLESHOOTING A SOUND Download 1.89 Mb. Share with your friends:
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