Split Flap Display Reverse Engineering and control with Arduino

Projects General Guidance
1

Hello Friends,

I am working on reverse engineer a PCB motor controller of a Split flap display , the split flap works with a synchronous 48 AC motor.

this is what found in this PCB :

FQP50N06 Transistor MOSFET

MOC3020 : 6 Pin DIP Ramdom-Phase Optoisolators Triac Driver Output

4 x MC3302 : Quad voltage comparator

1 x MC1413B : Hight Volatge, Hight Current Darling Transistor Arrays

3x MC14516B : Binary Up/Down Counter

MC14081b : Dual 4-Input AND Gate

2 Photointerrupters ( I have 2 photo interrupters in this circuit, one for the tuning and one for the steps of the synchronous motor )

After 3 days of work i made an initial Control Schematic :

I want to use the original 16-conductor multi-drop ribbon cable ( check the top of PCB please), i want to know what i get from every conductor of the 16 conductors and control the motor using an arduino.

like the example here :

What should i do next ?

Many thanks for your help !

2

Hi,
This thread is associated with many others, like this.

http://forum.arduino.cc/index.php?topic=414510.0

and

http://forum.arduino.cc/index.php?topic=415505.0

I would also be drawing in resistors and caps, this would help discern the two opto elements.
Now you need to convert that to a schematic.

Tom... :slight_smile:

3

TomGeorge:
Hi,
This thread is associated with many others, like this.

Controling a Split flap Display System of 65 modules with Arduino via I2C bus - Project Guidance - Arduino Forum

and

Photo interrupter - General Electronics - Arduino Forum

I would also be drawing in resistors and caps, this would help discern the two opto elements.
Now you need to convert that to a schematic.

Tom... :slight_smile:

I am sorry for the delay , I am saw the feedback i am going to delete this post and repost it again on the 2 topics