ASROCK IMB-1225 Service manual

9 : Panel Power Select (LCD_VCC)
(PNL_PWR1)
1-2 : LCD_VCC : +3V
2-3 : LCD_VCC : +5V
4-5 : LCD_VCC : +12V
10 : Inverter Power Control Wafer (BLT_PWR1)
11 : LVDSBL1
Open : Protect LCD_VCC
Short : No Protect LCD_VCC
12 : Backlight Power Select
(LCD_BLT_VCC) (BKT_PWR1)
1-2 : LCD_BLT_VCC : +5V
2-3 : LCD_BLT_VCC : +12V
13 : Backlight Volume Control (BLT_VOL1)
14 : Backlight Control Level
(CON_LBKLT_CTL) (BLT_PWM1)
1-2 : From eDP PWM to
CON_LBKLT_CTL
2-3 : From LVDS PWM to
CON_LBKLT_CTL
15 : 4-Pin CPU FAN Connector
(+12V) (CPU_FAN1)
COM Port PWR Setting Jumpers
1 : PWR_COM3 (For COM Port3)
23 : PWR_COM4 (For COM Port4)
1-2 : +5V
2-3 : +12V
2 : USB2.0 Header ( USB2_8_9)
3 : USB3.2 Gen1 Header
( USB3_3_4)
4 : SATA3 Connectors (SATA3_1~4)
5 : 4-pin ATX Power Input/Output
Connector
6 : 24-pin ATX Power Input Connector
7 : LVDS Panel Connector
8 : LVDSBL2
Open : Protect LCD_BLT_VCC
Short : No Protect LCD_BLT_VCC
Jumpers and Headers Setting Guide
IMB-1225
16 : System Panel Header
17 : COM Port Headers
(COM4, 5, 6) (RS232)
18 : Clear CMOS Headers
CLRMOS1 :
1-2 : Normal
2-3 : Clear CMOS
CLRMOS2 :
Open : Normal
Short : Auto Clear CMOS (Power O󰀨)
19 : 4-Pin Chassis FAN Connector (+12V)
(CHA_FAN1)
20 : Buzzer
21 : Chassis Intrusion Headers (CI1, CI2)
CI1 :
Open : Normal
Short : Active Case Open
Cl2 :
Open : Active Case Open
Short : Normal
22 : Digital Input/Output Pin
Header (JGPIO1)
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PIN Signal Name PIN Signal Name
39 LCD_BLT_VCC 40 LCD_BLT_VCC 37 CON_LBKLT_CTL 38 LCD_BLT_VCC 35 GND 36 CON_LBKLT_EN 33 LVDS_B_CLK# 34 LVDS_B_CLK 31 LVDS_B_DATA3 32 GND 29 DPLVDD_EN 30 LVDS_B_DATA3# 27 LVDS_B_DATA2# 28 LVDS_B_DATA2 25 LVDS_B_DATA1 26 GND 23 GND 24 LVDS_B_DATA1# 21 LVDS_B_DATA0# 22 LVDS_B_DATA0 19 LVDS_A_CLK 20 GND 17 GND 18 LVDS_A_CLK# 15 LVDS_A_DATA3# 16 LVDS_A_DATA3 13 LVDS_A_DATA2 14 GND
11 GND 12 LVDS_A_DATA2#
9 LVDS_A_DATA1# 10 LVDS_A_DATA1 7 LVDS_A_DATA0 8 PD (Panel Detection) 5 LDDC_DATA 6 LVDS_A_DATA0# 3 +3.3V 4 LDDC_CLK 1 LCD_VCC 2 LCD_VCC
1
Revision History
Date Description
November 19, 2020 First Release
4
2
3
1
DUMMY
GND GND
+B
-B
+A
-A
USB_PWR USB_PWR
1
1
1
PIN Signal Name
1 GND
2 GND
3 CON_LBKLT_CTL
4 CON_LBKLT_EN
5 LCD_BLT_VCC
6 LCD_BLT_VCC
PIN Signal Name
1 GPIO_VOL_UP
2 GPIO_VOL_DW
3 PWRDN
4 BLT_UP
5 BLT_DW
6 GND
7 GND
1 12
1 24
40 2
39 1
1
GND
+12V
CPU_FAN_SPEED
FAN_SPEED_CONTROL
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name
1DDCD# 3TTXD 5GND 7RRTS# 9PWR
2RRXD 4DDTR# 6DDSR# 8CCTS#
2
1
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
1
Signal
GND
+5V
Signal
1
Signal
GND
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name PIN Signal Name
2SIO_
GP71 4SIO_ GP72 6SIO_ GP73 8SIO_ GP74 10 GND
1SIO_
GP75 3SIO_ GP76 5SIO_ GP77 7SIO_ GP80 9JGPIO_ PWR
P/ N: 15G06M105000AK V1.0
*15G06M105000AK*

24 : Digital Input / Output Power Select
(JGPIO_PWR1)
1-2 : +12V
2-3 : +5V
25 : Digital Input / Output Default Value Setting
(JGPIO_SET1)
1-2 : Pull-High
2-3 : Pull-Low
26 : LPC Header
27 : PWR_BAT1
Open : Normal
Short : Charge Battery
28 : SPDIF Header
29 : SIO_AT1
Open : ATX Mode
Short : AT Mode
30 : 3W Audio AMP Output Wafer
31 : Front Panel Audio Header
32 : Audio Output
Green - Line Out
Pink - Mic In
34 : Top : RJ45 LAN Port (LAN2)
Bottom : USB2.0 Ports (USB2_5_6)
36 : Top : RJ45 LAN Port (LAN1)
Bottom : USB3.2 Gen1 Ports (USB3_1_2)
37 : Top : DisplayPort (DP1)
Bottom : HDMI Port (HDMI)
38 : Top : COM Port (COM3) (RS232)
Bottom : D-Sub Port (VGA1)
39 : Top : COM Port (COM1) (RS232/422/485)*
Bottom : COM Port (COM2) (RS232/422/485)*
35 : M.2 Key-E Socket (M2E1)
COM1, 2 Port Pin Denition
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 +5V / +12V N/A N/A
J_SENSE
OUT2_L
MIC_RET
PRESENCE#
GN D
OUT2_R
MIC2_R
MIC2_L
OUT_RET
1
M.2 Socket Pin Denition
33 : M.2 Key-M Socket (M2M1)
1
PIN Signal
Name PIN Signal Name PIN Signal Name PIN Signal Name
1 OUTLN 2 OUTLP 3 OUTRP 4 OUTRN
+5V
3 2 1
1
GN D
SMB_DATA_MAIN
LAD2
LAD1
GN D
S_PWRDWN #
SERIRQ #
GND
P CIC LK
PCIRST #
LAD3
+3 V
LAD0
+3VS B
GN D
FRAM E
SMB_CLK_MAIN
* This motherboard supports RS232/422/485 on COM1, 2 ports.
Please refer to below table for the pin denition. In addition, COM1, 2
ports (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.