Chapter 5: Troubleshooting

Touch screen driver error messages

The touch screen drivers can detect error conditions that are independent of the operating system. If you see one of the following error messages, please note the number displayed with it. This will help 3M Touch Systems technical support staff to diagnose the problem (see page 3).

Error message

Solution

9002: Unable to communicate with touch controller. Check COM port settings and cabling.

1.Disconnect power to the controller.

2.Double-check all connections between the controller and the host computer.

3.Re-connect power to the controller.

4.Double-check COM port settings for all peripheral devices and the controller.

5.Ensure no other touch drivers are loaded.

6.If the error message persists, call 3M Touch Systems for assistance.

91xx: Touch controller

•

When turning on the MicroTouch NFI

image error detected.

 

touch screen system, make sure that

 

 

nothing is touching the touch screen or

 

 

bezel.

 

•

If error persists after power-cycling with a

 

 

clean, untouched screen:

 

 

• There may be short circuits to the

 

 

touch controller or screen.

 

 

• The touch screen connector may be

 

 

loose.

 

 

• The touch screen or controller may

 

 

need servicing.

 

•

Double-check all connections between

 

 

the controller and the host computer.

 

•

If the error message persists, call

 

 

3M Touch Systems for assistance.

 

 

 

91xx: Unrecoverable

•

Controller requires servicing. Call

EEPROM failure detected

 

3M Touch Systems for assistance.

in touch controller. Touch

 

 

screen is inoperable.

 

 

Servicing is required.

 

 

 

 

 

91xx: Touch controller failed

•

Controller requires servicing. Call

RAM or ROM test. Touch

 

3M Touch Systems for assistance.

screen is inoperable.

 

 

Servicing is required.

 

 

 

 

 

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