GE MAC 800, Service Manual

Page: 37 / 122

Troubleshooting
2031504-159D MAC™ 800 3-15

If the Network Unavailable message is displayed in the window
and you are sure the device is connected to an active network, the
test fails.
Replace the mainboard assembly as described in
“Replacing the
Mainboard Assembly” on page 4-16.
5. When the test is complete, press F6 to Cancel and close the results
window.
Modem Test
The Modem Test can be used to test the internal modem.
1. Connect the MAC 800 device to an active analog phone line.
Ensure that the phone line is active. If you connect to an
inactive phone line, the test result may be a false negative.
2. Open the Diagnostic Tests window as described in “Accessing the
System Diagnostics Function” on page 3-6.
3. Select the Modem Test button.
The following window opens.
4. With the focus on the Internal Modem Test button press the Enter
key.
The Test in Progress. Please wait message is displayed.
Then the results of the test are displayed.

If the Passed message is displayed in the window, the test passes.

If the Failed message is displayed in the window, the test fails.
Replace the internal modem as described in “Replacing the
Internal Modem (option)” on page 4-19.
USB Test
The USB Test can be used to test the USB port.
1. Open the Diagnostic Tests window as described in “Accessing the
System Diagnostics Function” on page 3-6.
2. Connect a USB keyboard to the USB port of the MAC 800 back panel.
3. Select the USB Test button.
The following window opens.