F1000 Support Information
Helpful hints, troubleshooting tips, your questions.
EEG Hookup Methods
Frequently Ask Questions
Last Update: 10/23/00
Warning: We have had 2 reports of computer repair shops removing and discarding the F1000 interface board when repairing or upgrading the computer. Always warn the shop that there is a special board in the computer that is not to be removed. Ask that any items removed be returned to you.
Problem: System intermittently freezes.
Cause: The most common source of this problem is intermittent power line dropouts. This causes the computer to malfunction. A lightning strike on a power line can affect can affect circuits in a large area. The problem can occur during any computer operations. However, the nature of real time instrumentation makes it particularly vulnerable due to the continuous nature of the process.
Solution: A device called a UPS (Uninterruptible Power Source) installed between the outlet and computer equipment provides power from an internal battery when the power line falls below specifications. Any good UPS will solve the problem. There are a number of inexpensive units available. NOTE: A surge protector is NOT effective against power dropouts.
Problem: Weak or missing sound.
Solution: First check to see that your speakers have power and are turned on. Another common mistake is to plug the F1000 speakers into a sound card on the computer. The F1000 has it's own advanced sound chip and does not use the sound card. The speakers should be plugged into the F1000 interface board. The audio jack is located just below the preamp connector. Finally, a broken audio jack ground connection can result in weak audio. The jack can be broken by a heavy side load such as having the speaker fall off the desk. The interface board will need to be sent back to us for repair. We can normally make the repair and have it on it's way in a day. A temporary fix can be made by inserting aluminum foil between the jack and metal plate. Be sure to turn off the computer while inserting the foil, and make sure none of it falls into the computer. Contact us to verify the problem and make arrangements for a quick repair.
Problem: Unable to select any screen from the opening menu.
Solution: The most likely problem is a full hard drive. From the C:\> prompt type DIR and press enter. When the computer finishes processing the command, there will be line on the screen just above the C:\> prompt which shows the number of bytes free. If the free space is less than 500,000, you have a nearly full disk. The only way to free up space is by deleting files. If you have Windows on the computer you can use it's file management system to delete files. If the remaining space is too small, Windows may refuse to start also. At this point DOS offers the only way to delete files. If you are not familiar with using Windows or DOS, call us for help.
The lesson to be learned here is to check hard disk space regularly. You can use the F1000 file manager to copy the files to floppy disks, and the delete them from the hard drive. Try to keep a minimum of 5,000,000 bytes free. More should be free if you log raw eeg data.
Problem: Attempting to start the F1000 results in a Run Time 200 error message.
Solution: This usually happens after installing the F1000 software on a new computer or after upgrading to a larger hard drive. Download the current software from this website..
Problem: Unreliable EEG signals resulting from corroded pins on the biopotential electrodes.
Solution: The contact pin on the EEG biopotential electrode will eventually become corroded from contact with cleaning water and 10-20 Paste. If there is sufficient build up, the EEG signal can become degraded or unreliable. The solution is to clean the pins or replace the electrodes. The pins can be cleaned by scraping with a knife blade. Sandpaper or steel wool can also be used.
Problem: Screen goes black during a feedback session and returns when any key is pressed.
Solution: Be sure to set Win 98/ME Power Management off. This is found under My Computer, Control Panel, Power Management. The Turn Off Monitor setting should be set to never or After 1 Hour.
Installation under Windows 95/98
Note: The new version 10.55
software correctly installs the F1000 under
EEG Hookup Methods
We have added a new insert to the F1000 manual describing in detail how to do an effective hookup. The F1000 shielded cables and amplifiers make possible the cleanest EEG signals in the industry. Artifacts from the movement of the cables or clinician are almost totally eliminated. The one area which still requires skill is the application of the electrodes to the subjects scalp in a way which assures that they will not be moved by unsupported cables. The manual supplement includes illustrations that help understand the descriptions.
The F1000 manual insert is available as an Adobe Acrobat file for download. you will need the Adobe Acrobat Reader which is available free at www.adobe.com. After download, the file can be printed from the Reader and inserted in your F1000 manual.
If you have problems, drop us a note at: firstname.lastname@example.org.