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Problem isolation
If the SurePOS 700 fails, follow the procedures that are described in Table 12. If
you cannot solve the problem, contact a trained service technician.
Notes:
1. Some devices that attach to the system have test instructions. Refer to those
2. Record any error message or symptom so that this information is available
3. When using application software, you might receive error messages that apply
118
SurePOS 700 Series: SurePOS 700-721/741/781, 722/742/782 Planning, Installation, and Operation Guide
Table 12. Actions to isolate the cause of a problem
Problem
The power indicator
remains off.
Continuous series of
beeps
Video display is failing
(totally blank screen, no
cursor displayed, screen is
unreadable, or other
display problems).
Keyboard does not work
or only some keys work.
One or more POS I/O
devices are failing.
An optional feature
adapter is failing.
System does not power off
when the power switch is
pressed.
instructions when testing those devices.
when service is called.
to the software. Refer to the software manual for explanations of those
messages.
Action to perform
1. Check that the AC power cord is plugged into both the wall
outlet and the back of the terminal.
2. Ensure that AC power is present at the wall outlet.
1. Check to see if memory is bad or missing.
1. Verify that the video-display cables are securely connected.
2. Ensure that the video-display power cord is plugged in and
powered on.
3. Verify that the power indicator on the system unit and the
indicator light on the display are lit.
4. Adjust contrast and brightness controls on the display.
5. Use the reference documentation (if available) for the
display.
6. Exchange the video display.
1. Make sure that the keyboard is securely attached to the
keyboard port.
2. Move your fingers across the keys. Make sure that no keys
are stuck.
3. Make sure that you are on a screen that allows typing.
Some screens do not allow you to type on them.
1. Ensure that the I/O devices are securely and correctly
connected to the system unit.
2. If the device has its own power cord and power switch,
ensure that it has power and that the power switch is on.
3. Exchange the cables.
4. If a POS I/O device is available that is known to be good,
substitute it for the failing device to help in isolating the
failure.
See the service information for the adapter.
Press and hold the power button until the unit powers off.
(approximately 5 seconds)
Updated October 31, 2007
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