Mainboard GT2560_v4 + Expasion Board Schematics

[thomsen]

Hey,

i could not find any resources to the "new" Mainboard GT2560_v4 and the Expansion board used in the A20m .

Are the schematics available somewhere?
I want to replace the GT2560 with a 32Bit board and need to unsderstand the cabeling.

Thanks, Thomas

[thomsen]

Ok, i measured it myself.. Find attached the pinout.

VCD is +24V
VCC is +5v
PWM? is the PWM-Controlled ( - ) ground of the Mainboard for the Heater 0
Fan0 GND is the PWM-Controlled ( - ) ground of the Mainboard for the Cooling fan
PGND is GND for all stuff that always works ( Like Extruder-Cooler )
t0 are the Thermistor 0 Pins - polarity does not matter
t1 are the Thermistor 1 Pins - polarity does not matter - if used
PB5 is for the Touch Probe-Servo Signal
Z0 is the Probe output of the Touch

[gopher]

O, thanks, Thomas!
Geeetech can't publish opensource source code of the v4 board, and you are talking about schematic
I've migrated to e3dv6, and in the future i'll move to the 32bit board to!