5 Maintenance
│
67
5.3
Calibrating the touch screen
The touch screen of the
C 200
receiver is calibrated when it
leaves the factory. If the touch screen responds incorrectly when
operated, it can be recalibrated.
Calibration involves two stages, which occur automatically in suc-
cession. Firstly the areas are reset. Then the reset areas need
to be confirmed.
Note:
If the calibration process is interrupted, the touch screen may be
so misaligned that it cannot be used.
● Never switch the receiver off during the calibration process.
●
Always use a touch pen for calibration.
● Work with extreme care.
The main view is open.
1. Tap the
Settings
button. The
Settings
menu appears.
2. Tap the
Device
button. The
Device
menu appears.
3. Switch to the
Service
view (
Device 4/4
).
4. Tap
Calibration
. The calibration begins.
5. Follow the instructions.
−
The individual steps must be completed within a limited
time. If the time limit is exceeded, the calibration process
will be aborted.
−
The active area is marked with crosshairs. Non-active ar-
eas are grey.
−
Blue
crosshairs: Set area
−
Red
crosshairs: Confirm area
−
Try to hit the centre of the active area as accurately as
possible.
Once the screen has been successfully calibrated, the receiv-
er automatically switches back to the
Service
view.
