Flat Panel Display
Flat panel displays use either 3V or 5V power. A jumper on the card
sets the voltage interface level to match the panel voltage level. Also,
some flat panels require a bias voltage. The 5445/5445E bias voltage
is adjustable from +19V to +30VDC. The bias voltage must be set prior
to connecting the display. A video BIOS for the panel must already be
programmed in the EEPROM display (see “Programming the 5445
EEPROM”).
The following jumpers are used to configure flat panel displays:
W2, W3, W11 and W12 – LCD bias polarity select
W4 – +3V or +5V flat panel interface voltage select
W5 – SHIFTCLK polarity select
W6 – 5V or 12V safe select
W10 – LCD bias2 select
Refer to Tables A–4 through A–9 for the jumper settings for all these
options.
1.
Set the jumper at W4 for your display; either 3V or 5V (see figure
2–1 for the locations).
Table 2–1 W4 – +3V / +5V flat panel interface voltage select
Pins Jumpered
Description
[1-2] 3V
flat
panel
[2-3] *
5V flat panel
* default
WARNING!
Selecting the incorrect voltage could damage your display.
2.
Power on the 5445/5445E and measure Vee between J1, pin 25
(Vee) and pin 2 (gnd). Adjust R3 to the correct bias voltage for your
display.
Note
Without a flat panel BIOS programmed into the EEPROM and
W1[1–2] jumper installed, Vee will not come up.
3.
Power off the 5445/5445E and connect the flat panel display to the
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