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

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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.

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).

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SW7

SW6

SW8

SW7

SW6

SW8

U20191EE1V0UM00

User's Manual

All OFF

Any

All ON

1/2 Bias Mode

Other Mode

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