ASROCK SBC-240L Service manual

12 : SATA3 Connector
(SATA3_1)
13 : GPIO Default Setting (JGPIO_SET1)
1-2 : Pull-High
2-3 : Pull-Low
14 : LPC Header
15 : System Panel Header
16 : 4-pin DC-in PWR Connector (Input +12V)
1-4 : GND
2-3 : DC Input
17 : Clear CMOS Header (CLRMOS2)
Open: Normal
Short: Auto Clear CMOS (Power O󰀨)
18 : Clear CMOS Header (CLRMOS1)
1-2 : Normal
2-3 : Clear CMOS
19 : 4-Pin FAN Connector
(+12V)
5 : Backlight & Amp Volume Control
(BLT_VOL1)
6 : BL2
Open : Protect LCD_VCC
Short : No Protect LCD_VCC
7 : Panel Power Selection (LCD_VCC)
(PNL_PWR1)
1-2 : +3V
2-3 : +5V
3-4 : +5V
4-5 : +12V
8 : Backlight Power Select
(LCD_BLT_VCC) (BKT_PWR1)
1-2 : +5V
2-3 : +12V
9 : SATA Power Output Connector
10 : PWR_BAT2
Open : Normal
Short : Charge Battery
11 : Digital Input / Output Power Select
(JGPIO_PWR1)
1-2 : +12V
2-3 : +5V
1 : BL1
Open : Protect LCD_BLT_VCC
Short : No Protect LCD_BLT_VCC
2 : ATX/AT Mode Select (PWR_JP1)
1-2 : AT Mode
2-3 : ATX Mode
3 : LVDS Panel Connector
4 : Inverter Power Control Wafer
(BLT_PWR1)
Jumpers and Headers Setting Guide
SBC-240L
PIN Signal Name
7 GND
6 GND
5 GPIO_BLT_DW
4 GPIO_BLT_UP
3 PWRDN
2 GPIO_VOL_DW
1 GPIO_VOL_UP
1
1
+5V
+12V
1
GND
GND
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countries.
PIN Signal Name PIN Signal Name
2 LCD_VCC 1 LCD_VCC
4 LDDC_CLK 3 +3.3V
6 LVDS_A_DATA0# 5 LDDC_DATA
8 GND 7 LVDS_A_DATA0
10 LVDS_A_DATA1 9 LVDS_A_DATA1#
12 LVDS_A_DATA2# 11 GND
14 GND 13 LVDS_A_DATA2
16 LVDS_A_DATA3 15 LVDS_A_DATA3#
18 LVDS_A_CLK# 17 GND
20 GND 19 LVDS_A_CLK
22 LVDS_B_DATA0 21 LVDS_B_DATA0#
24 LVDS_B_DATA1# 23 GND
26 GND 25 LVDS_B_DATA1
28 LVDS_B_DATA2 27 LVDS_B_DATA2#
30 LVDS_B_DATA3# 29 DPLVDD_EN
32 GND 31 LVDS_B_DATA3
34 LVDS_B_CLK 33 LVDS_B_CLK#
36 CON_LBKLT_EN 35 GND
38 LCD_BLT_VCC 37 CON_LBKLT_CTL
40 LCD_BLT_VCC 39 LCD_BLT_VCC
1
39
40
2
GND
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
FAN_SPEED
FAN_SPEED_CONTROL
+12V
GND
1
GND
GND
S_PWRDWN#
LAD2
SMB_CLK_MAIN
PCICLK
PCIRST#
LAD3
+3 V
LAD0
GND
FRAME
SMB_DATA_MAIN
LAD1
SERIRQ#
GND
+3 VSB
48MHz
+5 V
PIN Signal Name
6 LCD_BLT_VCC
5 LCD_BLT_VCC
4 BL EN
3 BL CTL
2 GND
1 GND

24 : 3W Audio AMP Output Wafer
25 : Front Panel Audio Header
26 : USB Power Setting Jumpers
USB2_PWR4_5 (For USB2_4_5 )
USB2_PWR6_7 (For USB2_6_7 )
USB3_PWR2_3 (For USB3_2_3 on
the rear I/O )
1-2 : +5V
2-3 : +5VSB
27 : Audio Output: Green – Line Out
28 : Chassis Intrusion Headers
CI1 :
Close : Active Case Open
Open : Normal
Cl2 :
Close : Normal
Open : Active Case Open
29 : 2-Pin Buzzer Header
30 : USB3.0 Ports (USB3_2_3)
31 : LAN Port (LAN2)
33 : LAN Port (LAN1)
20 : Digital Input / Output Pin Header
(JGPIO1)
21 : USB2.0 Connectors
(USB2_4_5,
USB2_6_7)
22 : COM1 Pin9 PWR Setting Jumpers
(SET_CM3, 4, 5, 6)
1-2 : +5V
2-3 : +12V
23 : COM3, 4, 5, 6 Headers
1
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name
1SPK L- 2SPK L+ 3SPK R+ 4SPK R-
32 : M.2 Key-M Socket
34 : M.2 Key-E Socket
35 : VGA Port (VGA1)
36 : HDMI Port (HDMI1)
* The thermal solution of whole system
needs to be designed additionally.
1
Signal
GND
PIN RS232 RS422 RS485
1 DCD TX- RTX-
2 RXD RX+ N/A
3 TXD TX+ RTX+
4 DTR RX- N/A
5 GND GND GND
6 DSR N/A N/A
7 RTS N/A N/A
8 CTS N/A N/A
9 NA/+5V/+12V N/A N/A
* This motherboard supports RS232/422/485 on COM3 port. Please refer to below
table for the pin denition. In addition, COM3 port (RS232/422/485) can be adjusted
in BIOS setup utility > Advanced Screen > Super IO Conguration. You may refer to
our user manual for details.
COM3 Port Pin Denition
2
1
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name
1DDCD# 3TTXD 5GND 7RRTS# 9COM_PWR
2RRXD 4DDTR# 6DDSR# 8CCTS# 10 DUMMY
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name
2SIO_GP30 4SIO_GP31 6SIO_GP32 8SIO_GP33 10 GND
1SIO_GP34 3SIO_GP35 5SIO_GP36 7SIO_GP37 9JGPIO_PWR
DUMMY
GND
GND
P+
P-
USB_PWR
P+
P-
USB_PWR
1
J_SENSE
OUT2_L
1
MIC_RET
PRESENCE#
GND
OUT2_R
MIC2_R
MIC2_L
OUT_RET
1
+5V
SPKR