3-10 External Brightness Adjustment
3-62
3-10 External Brightness Adjustment
Connect a variable resistor to the external brightness adjustment connector on the NS-series PT to exter-
nally adjust the brightness of the backlight in the touch panel. This allows the brightness to be set lower than
the Low selection in the backlight brightness settings (High, Medium, and Low) under the operating settings
for NS-series PTs. Brightness can be adjusted externally only with the NS15.
Item Specification
Recommended resis-
tance range
0 kΩ to 50 kΩ
Recommended resistive
load power
0.1 W
Recommended cable AWG (10 to 26): 2 m max.
Variable Resistor for
Brightness Adjustment
Reference
The brightness of models with lot number 1020 (February 10, 2010) or later can be set
to a wider range including lower values than previous lots.
Refer to NS-series PT Lot Numbers on page A-8 for information on lot numbers.
Brightness (cd/m
2
) Resistance of vari-
able resistor (kΩ)
Lot No. 1020 or earlier
Lot No. 1020 or later
0 400 400
5 380 380
10 330 330
15 290 290
20 200 200
25 110 170
30 60 130
35 20 60
40 15 20
45 15 5
50 15 5
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