Samsung MULTIXPRESS CLX-9251 Series Service Manual page 423

A3 color copier

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Table of Contents

11) LCD touch problem

Symptom : During Ready or Job processing , Touch LCD does not work.

Touch screen panel calibration problem

Touch screen panel connection interface problem

UI PBA problem

Troubleshooting

1) Execute the touch screen calibration.

a) Turn off the machine.

b) While pressing the number 0 on numeric keys, turn the machine on. Wait until calibration screen appears.

c) Press centre of mark + following order 1~5. Use your finger. Perform 2 times.

d) If there is no problem, "Complete" will appear on LCD and reboot the machine. When making a mistake, start

again from the step 1.

2) Check the touch screen panel flat cable connection on UI PBA.

3) If the connection is OK, replace the UI PBA with new one.

4. Troubleshooting

Troubleshooting