XY-2Pro-Titan Mainboard CXY-V6-19107
! Incorrect pins !
A square PCB pad
normally marks pin
1 of each connector
but this PCB often
transposes/violates
numbering norms,
so ignore the pads!

! Design defect !
USB and MicroSD
card shells are not
 grounded. This must
be fixed for card-
detect to function
and for protection
from ESD damage.

! Helpful hints !
 Set motor currents at
R48s for 1.10 ~ 1.25
VDC from A to B:

MCU xtal 8.000MHz

JP3_NC FILAMENT1 JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin110 PA15
2 – GND
3 + +5V

J?? FILAMENT2 JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 4k7Ω to MCU Pin53 PF13
2 – GND
3 + +5V

JP7 XSTOP JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin125 PG10
2 – GND
3 + +5V

J4 YSTOP JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin104 PA12
2 – GND
3 + +5V

J5 ZSTOP JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin109 PA14
2 – GND
3 + +5V

J2 Z+ JST-XH-M (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 S 10kΩ Pullup to +5V and 100nF to GND, then 4k7Ω to MCU Pin105 PA13
2 – GND
3 + +5V

JP9 FAN3 JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 BLK Controller cooling Fan3 driver Q9 AO3400A X07S via MCU Pin122 PD6
2 RED +24V

JP3 BTEMP JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 NTC 4k7Ω Pullup to +3V3 and 100nF to GND, then 4k7Ω to MCU Pin34 PA0
2 NTC GND

JP8_NC ETEMP Hdr2.54-M (Pin 1 is square PCB pad)
Pin
 Label
 Function & Notes
1 NTC GND
2 NTC 4k7Ω Pullup to +3V3 and 100nF to GND, then 4k7Ω to MCU Pin35 PA1

JP80_NC F_2_1 Hdr2.54-M (Pin 1 is square PCB pad)
Pin
 Label
 Function & Notes
1 +
 +24V
2 F_2
 Extruder cooling Fan2 driver Q8 AO3400A X07S via MCU Pin129 PG14
3 F_1
 Part cooling Fan1 driver Q7 AO3400A X07S via MCU Pin128 PG13

JP2_NC X-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Stepper Winding Drive
2 2A
 Stepper Winding Drive
3 1A
 Stepper Winding Drive
4 1B
 Stepper Winding Drive

JP13 Y-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Stepper Winding Drive
2 2A
 Stepper Winding Drive
3 1A
 Stepper Winding Drive
4 1B
 Stepper Winding Drive

JP14 Z1-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Stepper Winding Drive
2 2A
 Cascade to Z2-2B aka JP11-1
3 1A
 Stepper Winding Drive
4 1B
 Cascade to Z2-1A aka JP11-3

JP11 Z2-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Cascade to Z1-2A aka JP14-2
2 2A
 Stepper Winding Drive
3 1A
 Cascade to Z1-1B aka JP14-3
4 1B
 Stepper Winding Drive

JP6_NC E1-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Stepper Winding Drive
2 2A
 Stepper Winding Drive
3 1A
 Stepper Winding Drive
4 1B
 Stepper Winding Drive

JP6_NC E2-MOTOR JST-XH-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 2B
 Stepper Winding Drive
2 2A
 Stepper Winding Drive
3 1A
 Stepper Winding Drive
4 1B
 Stepper Winding Drive

HOTBED KF301 (Pin 1 is square PCB pad)
Pin
 Label
 Function & Notes
1 - +24V
2 - Hotbed driver Q5 RU30120L via Q12 via Q11 via MCU Pin126 PG11

12/24V KF301 (Pin 1 is square PCB pad)
Pin
 Label
 Function & Notes
1 + Power in +24V
2 – Power in GND

JP2 RIBBON30 IDC-M (Pin 1 is correct on PCB)
Pin
 Label
 Function & Notes
1 Hotend
 Hotend driver Q6 HY1403 via MCU Pin127 PG12
2 Hotend
 Hotend driver Q6 HY1403 via MCU Pin127 PG12
3 Hotend
 Hotend driver Q6 HY1403 via MCU Pin127 PG12
4 Hotend
 Hotend driver Q6 HY1403 via MCU Pin127 PG12
5 +24v
 Hotend +24v
6 +24v Hotend +24v
7 +24v Hotend +24v
8 +24v Hotend +24v
9 F_2
 Extruder Fan2 driver Q8 AO3400A X07S via MCU Pin129 PG14
10 +24v Extruder cooling Fan2 +24v
11 F_1
 Part Fan1 driver Q7 AO3400A X07S via MCU Pin128 PG13
12 +24v Part cooling Fan1 +24v
13 1B
 X-MOTOR Winding Drive
14 1A
 X-MOTOR Winding Drive
15 2B
 X-MOTOR Winding Drive
16 2A
 X-MOTOR Winding Drive
17 1A
 E1-Motor Winding Drive
18 1B
 E1-Motor Winding Drive
19 2B
 E1-Motor Winding Drive
20 2A
 E1-Motor Winding Drive
21 PROXIMITY
 10kΩ Pullup to +5V and 100nF to GND, then 20kΩ to MCU Pin124 PG9
22 +24v Proximity sensor +24v
23 +5V
 Filament sensor +5V,  XSTOP sensor +5V
24 GND
 Proximity Sensor GND
25 FILAMENT1
 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin110 PA15
26 GND Filament Sensor GND
27 XSTOP
 10kΩ Pullup to +5V and 100nF to GND, then 47kΩ to MCU Pin125 PG10
28 GND XSTOP sensor GND
29 GND Extruder temperature NTC sensor return GND
30 ETEMP
 4k7Ω Pullup to +3V3 and 100nF to GND, then 4k7Ω to MCU Pin35 PA1

J1 WIFI IDC-F (Pin 2 is square PCB pad)
Pin
 Label
 Function & Notes
1 GND
 GND
2 WIFI_TX
 To MCU Pin70 PB11 USART3_RX
3 -
 Not connected
4 -
 +5V
5 GND
 GND
6 PU
 From MCU Pin81 PD12 USART3_RTS
7 WIFI_RX From MCU Pin69 PB10 USART3_TX
8 V3.3
 +3V3

U7 Display 0.5mmFPC (Pin 1 is transposed on PCB)
Pin
 Label
 Function & Notes
1 +3V3
 +3V3
2 -
 Not connected
3 -
 Not connected
4 -
 Not connected
5 GND
 GND
6 D0
 MCU Pin85 PD14
7 D1
 MCU Pin86 PD15
8 D2
 MCU Pin114 PD0
9 D3
 MCU Pin115 PD1
10 PS-CLK
 MCU Pin123 PD7
11 A16-RS
 MCU Pin80 PD11
12 LCD-nWE
 MCU Pin122 PD6
13 LDC-nOE
 MCU Pin118 PD4
14 Light-PWM
 MCU Pin82 PD13
15 D4
 MCU Pin58 PE7
16 D8
 MCU Pin64 PE11
17 D9
 MCU Pin65 PE12
18 D10
 MCU Pin66 PE13
19 D11
 MCU Pin67 PE14
20 D12
 MCU Pin68 PE15
21 D13
 MCU Pin77 PD8
22 D14
 MCU Pin78 PD9
23 D15
 MCU Pin79 PD10
24 7846-INT
 MCU Pin136 PB6
25 SPI1-MISO
 MCU Pin42 PA6
26 SPI1-MOSI
 MCU Pin43 PA7
27 SPI1-CS3
 MCU Pin137 PB7
28 SPI1-SCK
 MCU Pin41 PA5
29 LCD-RST
 MCU Pin40 PA4
30 D5
 MCU Pin59 PE8
31 D6
 MCU Pin60 PE9
32 D7
 MCU Pin63 PE10
33 GND
 GND
34 GND
 GND
35 GND
 GND
36 +5V
 +5V
37 +5V
 +5V
38 +3V3 +3V3
39 +3V3 +3V3
40 +3V3
 +3V3

U5 MicroSD (Pin 1 is at RHS looking into slot)
Pin
 Label
 Function & Notes
1 DAT2
 MCU Pin111 SDIO-D2 PC10
2 CD/DAT3
 MCU Pin112 SDIO-D3 PC11
3 CMD
 MCU Pin116 SDIO-CMD PD2
4 Vdd
 +3V3
5 CLK
 MCU Pin113 SDIO-CK PC12
6 Vss
 GND
7 DAT0 MCU Pin98 SDIO-D0 PC8
8 DAT1
 MCU Pin99 SDIO-D1 PC9
9 Card_Detect
 Closes MCU Pin10 PF0 to shell
S Shell
 Shell is not grounded (design defect)

LEDs & BEEPER
Designation Label
 Function & Notes
LED1 PWR Indicates presence of +3V3 power
LED2 SOURCE Controlled by MCU Pin117 PD3
H1 BEEP Controlled through Q2 by MCU Pin46 PB0

PUSH BUTTON & JUMPERS
Designation Label Function & Notes
PB RESET
 Press to ground MCU Pin25 nRST
JP1 BOOT Remove to make MCU Pin138 BOOT0 high
SW2 SOURCE Obrain 5V from Local-5V or from USB-5V

USB SERIAL ROUTING
CH340G to MCU Pin102 USART1_RX PA10
MCU Pin101 USART1_TX PA9 to CH340G
CH340G Crystal Frequency is 12.000MHz
USB shell is not grounded (design defect)

STEPPER SIGNAL ROUTING
X Y Z E1 E2
Pin4   PE5   X-STEP
Pin5   PE6   X-DIR
Pin7   PC13   X-EN
 Pin1   PE2   Y-STEP
Pin2   PE3   Y-DIR
Pin3   PE4   Y-EN
 Pin140   PB9   Z-STEP
Pin141   PE0   Z-DIR
Pin142   PE1   Z-EN
 Pin134   PB4   E1-STEP
Pin135   PB5   E1-DIR
Pin139   PB8   E1-EN 		Pin97   PC7   E2-STEP
Pin96   PC6   E2-DIR
Pin93   PG8   E2-EN