Touchscreen Related; Touchscreen Not Responding After The Operating System Starts; Touchscreen Calibration - Micros Systems Workstation 5 Service Manual

Touchscreen Related

This section includes several touchscreen related symptoms and applies only to
the ABRD88 system board. Note that a POST for the touchscreen interface and
controller is not implemented.

Touchscreen Not Responding after the Operating System Starts

Symptoms: The Workstation 5 starts Windows Embedded CE 6.0, but the
touchscreen does not respond. No error messages are reported.
• Restart the Workstation. Do not touch the screen until after the unit boots to
the CE Desktop.
The current Windows Embedded CE 6.0 touch screen driver has a
o
known issue where if the user touches or cleans the touchscreen while
WinCE boots, it fails to detect touches after WinCE displays the
desktop.
• If the touchscreen does not function after allowing the system to boot
without touching the screen, see below.
Defective, damaged, or pinched interface cable. Check the cable at the
o
point where it mounts to the glass surface.
Defective touchscreen interface U17/U19.
o
Damaged EMI Protection Circuit - Check D8 through D12.
o

Touchscreen Calibration

Symptoms: After booting, touches appear on the screen, but the calibration is
such that you cannot access the desktop calibration icon.
• Defective, damaged, or pinched interface cable. Check the cable at the
point where it mounts to the glass surface.
• Connect a USB Keyboard/Mouse combo and start the 'TSHARC
Calibration' utility on the desktop.
Run through the calibration procedure, touching and holding each
o
target, and releasing when prompted. If touchscreen calibration is not
acceptable after completing the procedure, see below.
• Defective Touchscreen glass.
• Incorrect configuration jumper settings.
The Workstation 5 supports a Capacitive Touchscreen, but as of
o
February 2009 this option has not entered production. If the
configuration jumpers are missing or set incorrectly, the symptoms may
appear as a calibration issue instead of a 'no response to touch.'
message. Refer to Figure 3-9 to make sure the jumpers are set correctly.
Note that Pin 1 of the jumper block faces the IO Panel.
Workstation 5 Field Service Guide
Workstation 5 Troubleshooting

Touchscreen Related

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