TROUBLESHOOTING
INTERMITTANT SIGN ON PROBLEMS?
Intermittant problems usually are caused by an intermittant failure in some part of the computer.
If your computer sometimes has problems signing on, try this:.
Turn off and remove Internet, Norton, defrag, scanner virus and anti-spyware.
4. The fourth reason may be that your Vista operating system may have updated and reset some internal Administrator file. Save your old datamdb file and relaod the program.
5. You have an old computer. If you have solved the first two problems, and still have sign-on problems your CPU-Vidoe card combo may be failing.
How do the Impedence Bars work? Are they the same in every application?
The impedance bars are set by each application developer and generally 100K for EMG, 200K for ECG, and 10K for EEG is used for the yellow green threshold and about three times that for the red yellow.
Our system is very reliable. Nevertheless, like all biomedical devices, there are many processes that must occur to detect, transduce, filter, and display a signal. Some of the more common issues are listed here:
INSTALLATION PROBLEMS:
SIGNAL PROBLEMS:
DATA MANAGEMENT PROBLEMS:
EEG/EMG/ECG: The greatest problem is poor skin preperation. First check the electrodes alone. Take off the sensors and touch each + and - lead to a Ground. Impedence should drop to near-zero. OK? Then the problem is with the skin: Use circilar motion to rub the site first with an abrasive material, then alcohol, then a dry swab. The skin should look slightly red with local blood flow. Then dab a dot of electrode cream on the site and attach the pre-creamed electrode into place. If you you pre-gelled EMG electrodes, put some cream on the electrode and site anyway.
SIGN ON PROBLEMS?
If your computer sometimes has problems signing on, there are 4 reasons:
1`. Low battery. Battery voltage is 6.5 V max and 4.3 V min.
2. Wrong hardware type. See RUN SESSION/ Setup/Hardware Type.
3. Competing programs are knocking out access to the processor - you MUST turn off and remove Internet, Norton, defrag, scanner virus and anti-spyware.
4. The fourth reason may be that your Vista operating system is not optimized for 'feedback. You may need to reinstall as Administrator,
5. You have a computer that is not optimized for fast signal processing and screen drawing. If you have solved the first two problems, and still can not sign-on, strip everything out of the computer, re-install XP or Vista, delete all anti-virus and internet programs, and relaod J&J USE3 Plus.
"INVALID DATABASE" Error?
This means your download was incomplete. Try again.
Keep this in mind - sometimes a download is corrupted by the transfer process and when you run it, you get an 'invalid database' error.
The soultion? Download again - until you get a full set.
VISTA users - if you get this error, the download may be corrupted AND/OR Vista is blocking you. Vista by default is set to block almost everything, because you are not installing as 'administrator.' The Vista Solution is to right-click, and select ' Install as Administrator.'
Then disable the User Acconts.
Go to Control Panel -> User Accounts -> Turn On / Off User Accounts.
START UP PROBLEMS:
VISTA INSTALLATION PROBLEMS:
TECHNICAL: Want more? Go to