Chapter 4 Technical Description
16
EPSON
S5U13719P00C100 Evaluation Board User Manual (Rev. 1.1)
4.5 LCD Panel Interface
The LCD interface signals are available on connectors H4 and H5. For S1D13719 LCD interface pin mapping, refer
to the
S1D13719 Hardware Functional Specification
, document number X59A-A-001-xx.
On the evaluation board there is an adjustable 12~25V power supply. At 12V, the maximum current available is
100mA. At 25V, the maximum current available is 60mA. This power supply is intended to use to power the LED
backlight on some LCD panels. The voltage is adjusted by the R36 pot.
Note
For LCD panels that use CCFL backlight, an external power supply must be used to provide power to the inverter
for CCFL backlight. Usually, the inverter current consumption is higher than the maximum 100mA current avail-
able from the on-board voltage regulator.
The following diagram shows the location of the LCD panel connectors H4 and H5. H4 and H5 are both 0.1x0.1”,
40-pin headers (20x2).
