Service manual

Neurodiagnostic Instruments Service Manual
6-26 Revised 2/18/05
Auditory Stimulator Problems
Confirm that the headphones or other transducers are
connected to the correct left or right stimulator jacks on
the rear of the console base. Make sure the plugs are
fully inserted and seated all the way into their jacks.
Make sure the screen shows a STIM ON condition. If it
does not, press the Switch key once or twice. Check the
stimulator settings to make sure the desired ear is set to
the proper stimulus type and intensity level.
Check that the screen displays the desired stimulus
intensity. Try increasing the intensity slightly.
Try applying the stimulus to the other ear. One or both
auditory transducers or their cables may have failed.
Replace inoperative transducers and broken cables.
Run the USB/FireWire Diagnostics to verify the
condition of the auditory stimulator.
Exit the VIASYS application and reenter the test to reset
all parameters.
Network Problems
Use this troubleshooting procedure for new installations
of a local workgroup, or when adding a new station to
an existing network.
Hardware checks
1. Power up and log on to all stations, using the same
login (nic/no password, nicolet/no password, or
administrator/nicolet).
2. Verify the hub/switch and /or repeater are powered
on.
3. Verify the Link lights on the hub/switch and
network interface cards are lit.
4. Verify all cable connections are secure.
5. Verify the correct network cables are installed. The
recommended type is category 5 UTP.
6. Verify the cable run are within the maximum
recommended cable length.
7. Verify each LAN card is seated firmly into the
computer expansion slot.
Verify the Windows XP network settings for each
system using the following procedure.
Windows XP network settings
1. From the Windows desktop, click on Start
>Programs >Accessories >Command Prompt.
At the C:\ prompt, type
ipconfig /all and press Enter.
2. Verify the correct Computer Name, Workgroup,
and TCP/IP settings for each system from the
Command Prompt window. Each system must
have a unique IP Address (typically
192.168.1.xxx). All systems should have the same
Subnet Mask (typically 255.255.255.0) and
Gateway.
3. Close the Command Prompt window.
4. Double-click on My Network Places. The My
Network Places window opens. Verify each system
on the network appears in this window.
5. Double-click on each computer icon. A Computer-
name window opens, showing the shared folders
for the selected system. A Nicolet folder should be
present for each system.