3310 display leds not working

[gorandj]

3310 three display leds not working -just one work. i have two 3310 with same problem.

[dohc]

did you solder your leds in place? if yes, then either those 3 solders are DUDS or you soldered them in the wrong place.

[gorandj]

no - leds are ok and soldered, problem is something else cause i have two of them with same problem. with ohm-meter there is no ground on those leds and i dont know why but i think this is no rare problem or i am so lucky

[gabiz]

I'm not sure bat on 3310 schematic from one IC is two ways out one for keypad leds and one for display leds whatever keypad and display leds seems to work together so you can try to use same pinout of that IC to command both display and keypad leds . But just if you know how to do it. Try to disable(desolder)pinout for keypad and pinout for dislpay make it to go to both keypad and display leds.It's easy if you undertand me.Please exuse my english. Good luck!

[boldi]

Hi m8
you may have got a circuit break in parralell from first led
try to solder from working led to the non working 3 leds with the coated wire used to modify 3210's
hope this helps
regards
boldi