Panasonic TY-TP58P10S, Service Manual

Page: 47 / 61

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6.8. Adjust and confirm the light
level
• Purpose for adjustment : Confirm that the enough light level
to operate Touch Panel properly is secured.
1. Press "Auto set" at left and right.
2. Press "Initialize" after press "Write to ROM" to save the
data.
3. Confirm that the weakest point of left and right wave
shape (light level) is level 2.5 or more.
The scale of the sensor wave shape is 10 levels as a
whole.
The L wave shape is about 3.5 levels, the R wave shape
is about 3.2 levels for the figure below. (Refer to the
expansion display)
• If dust exists on the sensor unit or reflection plate, necessary
light level may not be secured. Clean the reflection plate and
the floodlight lens of the sensor part.
[Cleaning of the sensor part]
- Place the touch panel that the sensor part comes the
bottom.
- Clean the 2 flood light lenses and the prism in the mid-
dle.
Rub the 2 flood light lenses and the prism gently, using
wet cotton bud with water or 30% alcohol solution.
[Attention]
- Do not drop water or alcohol solution inside the sen-
sor part.
*Squeeze well the moisture of the cotton bud.
- The flood light lenses and the prism are made of
acrylic plastic.
- Scratches on the surface and using chemicals except
alcohol drop performance.
• If the weakest point is below 2.5, set "LED power" current to
"High" by opening "Common" tab in Parameter.
• If the weakest point is still below 2.5 although setting "LED
power" current to "High", open "Sensitivity" tab in
"Parameter" to adjust the sensor sensitivity.
*Adjust the lowest point of the wave shape to 3 levels.
• If you set the wave shape to too high level more than
necessary, thin things cannot be recognized. When confirm-
ing the thinnest value detection, NG will appear.
*Press "Write to ROM" when you adjust the sensor sen-
sitivity.