IBM lcd-lvds-lan User Manual
21
Chapter 2 Installation
2.19.1 CRT display connector (CN12)
CN12 is a standard 15-pin D-SUB connector commonly used for VGA.
The pin assignments for CRT display connector CN12 are detailed in
Appendix C.
The pin assignments for CRT display connector CN12 are detailed in
Appendix C.
2.19.2 Flat panel display connector (CN18)
CN18 consists of a 40-pin connector which can support a 24-bit LCD
panel. It is Hirose’s product no. DF13A-40DP-1.25 V
The PCI-6871 provides a bias control signal on CN18 that can be used to
control the LCD bias voltage. It is recommended that the LCD bias volt-
age not be applied to the panel until the logic supply voltage (+5 V or
+3.3 V) and panel video signals are stable. Under normal operation, the
control signal (ENAVEE) is active high. When the PCI-6871’s power is
applied, the control signal is low until just after the relevant flat panel sig-
nals are present. CN18 can connect up to 24 bit TFT LCD.
panel. It is Hirose’s product no. DF13A-40DP-1.25 V
The PCI-6871 provides a bias control signal on CN18 that can be used to
control the LCD bias voltage. It is recommended that the LCD bias volt-
age not be applied to the panel until the logic supply voltage (+5 V or
+3.3 V) and panel video signals are stable. Under normal operation, the
control signal (ENAVEE) is active high. When the PCI-6871’s power is
applied, the control signal is low until just after the relevant flat panel sig-
nals are present. CN18 can connect up to 24 bit TFT LCD.
2.19.3 Extension flat panel connector (CN17)
CN17 consists of a 20-pin connector which is Hirose’s product no.
DF13A-20DP-1.25V. The PCI-6871 supports a 36-bit LCD panel which
must be connected to both the CN18 (40-pin) and the CN17 (20-pin). The
pin assignments for both CN18and the CN17 can be found in Appendix C
DF13A-20DP-1.25V. The PCI-6871 supports a 36-bit LCD panel which
must be connected to both the CN18 (40-pin) and the CN17 (20-pin). The
pin assignments for both CN18and the CN17 can be found in Appendix C
2.19.4 LVDS LCD panel connector (CN21)
The PCI-6871 uses the VIA TwisterT chip that supports 2 channel (2 x
18 bit) LVDS LCD panel displays. Users can connect to either an 18-bit
or 36-bit LVDS LCD with CN21.
18 bit) LVDS LCD panel displays. Users can connect to either an 18-bit
or 36-bit LVDS LCD with CN21.