Instruction Manual

31.7 Diagnosis
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915 KF Ti-Touch
￭ Touch adjustment
Adjust the touch-sensitive screen (see Chapter 31.7.4, page 347).
￭ Touch screen test
Test the function of the touch-sensitive screen (see Chapter 31.7.5,
page 348).
￭ Software update
Update the software of Ti-Touch and of the control devices (see Chap-
ter 31.7.6, page 349).
￭ Service
Special functions for the service technician (see Chapter 31.7.7, page
352).
31.7.1 LCD test
System ▶ Diagnosis ▶ LCD test
You can use the LCD test to check the display for faulty pixels. To do this,
various test images are displayed one after the other.
NOTE
The [ ] fixed key is used to display the preceding test picture; the test
can be stopped at any time with the [ ] fixed key.
Proceed as follows:
1
￭ Tap on [LCD test].
The entire display turns white.
2
￭ Check the display for pixel errors and other irregularities.
￭ Continue the test with [ ].
Other colors and patterns will be displayed one after the other.
3
￭ Repeat step 2 until the System / Diagnosis dialog is displayed
again.
4
￭ Contact your Metrohm representative in the event of faults or
irregularities.