Sharp LQ201U1LW01 Instrukcja Użytkownika Pobierz pdf (Strona 4)

S1220 User Manual 06/06/11

INSTALLATION and SETUP

There are a few jumpers and switch settings that must be set for proper

operation of the S1220. Prior to setting up the board, knowledge of the LCD is

required:

1 – LCD POWER

On the TTL output connectors and on the LVDS connectors are power pins.

These power pins can be either 3.3VDC or 5.0VDC. A 2-pin shunt must be

placed across 2 of the pins on the 3-pin jumper JP2:

JP2 Setting

----------------------------------------------

1-2 5.0VDC

2-3 3.3VDC

2 – BACKLIGHT INVERTER BRIGHTNESS CONTROL

The backlight inverter interface connector J5 has a brightness control signal on

pin 5. This signal can be configured a number of ways to match the

requirements of the backlight inverter used. A set of 2 each 2-pin shunts are

used on jumpers JP3 and JP4. In addition, the signal range can be inverted

using DIP switch position 8. The list of possible configurations are shown below:

JP3 JP4 SW8 Signal Function (J5-5)

-------------------------------------------------------------------------------------------------

OFF 1-2 OFF 10K Resistor, range 0 ohm -> 10K

OFF 1-2 ON 10K Resistor, range 10K -> 0 ohm

1-2 1-2 OFF 5V, range 0V -> 5V

1-2 1-2 ON 5V, range 5V -> 0V

2-3 1-2 OFF 2.5V, range 0V -> 2.5V

2-3 1-2 ON 2.5V, range 2.5V -> 0V

OFF 2-3 OFF PWM Control Signal

1 2 3 4 5 6 7 8 9 10 11 12

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Sharp LQ201U1LW01 Instrukcja Użytkownika Strona 4