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C.
Appendix C Pin Assignments
System Board
C.1 JFAN
Table C-1 FAN I/F pin assignments (3-pin)
Pin No. Signal name I/O Pin No. Signal Name I/O
1 +FAN1 2 FAN_SPEED1
3 GND
C.2 JLVDS
Table C-2 LVDS I/F pin assignments (20-pin)
Pin No. Signal name I/O Pin No. Signal Name I/O
1 +LEDVDD 2 NC
3 +LCDVDD_L 4 +3VS
5 LCD_PWM 6 BKOFF#
7 LVDS_SDA 8 LVDS_SCL
9 GND 10 LVDS_A0
11 LVDS_A0# 12 GND
13 LVDS_A1 14 LVDS_A1#
15 GND 16 LVDS_A2
17 LVDS_A2# 18 GND
19 LVDS_ACLK 20 LVDS_ACLK#
21 GND 22 USB_N7_R
23 USB_P7_R 24 +5VS
NB250/NB255 Series Maintenance Manual
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C-1