Lcd Drive Voltage; Booster Type, Capacitor Split; External Resistor Split－1/2 Bias Method (2 / 3 Time-Sharing); Table 7: Switch Settings Booster Type Mode - NEC 78K0R/L 3 Sense it! Series User Manual

78K0R/Lx3 – Sense it!

2.8 LCD Drive Voltage

The allowed LCD drive voltages can be selected by switches mounted to the TK-78K0R/LH3+LCD board.

2.8.1 Booster Type, Capacitor Split

Set the switches as shown below.
A 0.47µF capacitor is connected to each terminal, following methods can be selected.
・ Booster Type－1/3 bias method
・ Booster Type－1/4 bias method
・ Capacitor Split－1/3 bias method
2.8.2 External Resistor Split－1/2 Bias Method (2 / 3 Time-Sharing)
Set the switches as shown below. It is connected with 100KΩ of resistance (diagram below).
_______________________________________________________________________________________________
SW7
SW6
SW8

Table 7: Switch settings Booster Type mode

SW7
SW6
SW8

Table 8: Switch settings External Resistor Split mode 1/2 BIAS

U20191EE1V0UM00
User's Manual
All OFF
Any
Any
All ON
1/2 Bias Mode
Other Mode
18