You need to experiment here a little bit.
Use a 5 Volts supply and put a resitor in series with one of the test leads (470 ohms) to limit the current to about 10 mA.
It looks that PIN 1 left bottom row is the CA terminal
Attach the positive lead to one terminal to start with, then with the other lead touch the other terminals one at the time.
Repeat this for all pins.
You will find that with the correct pin at positive voltage, all the other segments and the dot will light up when the terminals are touched.
That is the common anode ( CA ) terminal of the display.
As this is a common anode display a 7447 driver can be used.
I figured out which PIN is the common anode with a procedure similar to the one proposed by RODALCO. The upper left PIN and bottom right PIN are common anode terminals. The diagram seems not to be correct. I think it is for a different model of displays.
Thank you
To check the proper pins i suggest that you grap 1 seven segment and then test it with the a digitial multimeter with continuity test. If the red probe is connected with tha anode and the black probe is connected to the cathode, one of the led's will be lit on. From there you continue doing that and will extract the circuit diagram yourslf since you have got any idea of the pins.
To check the proper pins i suggest that you grap 1 seven segment and then test it with the a digitial multimeter with continuity test. If the red probe is connected with tha anode and the black probe is connected to the cathode, one of the led's will be lit on. From there you continue doing that and will extract the circuit diagram yourslf since you have got any idea of the pins.
To check the proper pins i suggest that you grap 1 seven segment and then test it with the a digitial multimeter with continuity test. If the red probe is connected with tha anode and the black probe is connected to the cathode, one of the led's will be lit on. From there you continue doing that and will extract the circuit diagram yourslf since you have got any idea of the pins.
You might also want to be aware that depending on the size of the 7 segment, some of them have 2 LEDs in series or parallel per segment and usually just one LED for the decimal (DP).
A lot of these 7 segment displays come from china and the datasheet rarely matches what is inside the display. Buying from Kingbright will probably be the best way to get something that matches the datasheet.
With continuity test the meter outputs a voltage of about 1 to 1.4v and this will be enough to lit the LED. with the diode test i think it will be the same voltage output.