Kit K8115 Component tester


#1

After assembling the kit only backlight working! Need help


#2

Please post a picture of your assembly.
Maybe there’s an error in the soldering


#3

IMG_20171017_105713 (Mobile)IMG_20171017_105813 (Mobile)IMG_20171017_105840 (Mobile)IMG_20171017_105826 (Mobile)


#4

Hi, i checked all pins , no short, no cold joints, all pins perfect. I check esr of capacitors all ok. Oscilograms from MCU perfect. Voltages perfect. What next???


#5

Hi
Could you please a post a picture of IC1 and maybe the whole mainboard(without the LCD)


#6

IMG_20171028_144416 (Mobile)


#7

IMG_20171028_145912 (Mobile)


#8

Microcontroller is Atmega328P-PU


#9

I too am having the same problem of only the back light working. I have checked all joints, components, pins, etc. All checks out fine. IC 1 and the microcontroller are the same as the above post. Any feedback would be welcome.


#10

You might have an defective IC.
Please issue a ticket at http://support.velleman.eu


#11

Hi, I just recived a new chip from you and kit now is working!!!
Thank you very much for support!


#12


#13

Great!

Enjoy your kit


#14

Same problem. I ask for help


#15

As i said before :slight_smile:
please contact http://support.velleman.eu