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Re: PR29
Posted:
Fri Mar 02, 2012 10:23 am
by mark
I went to Nixie yesterday to see the sample of the project and I realize that they are using the PCB of PR27 to run this PR29 project. Will it actually affect???
Re: PR29
Posted:
Fri Mar 02, 2012 4:53 pm
by hyng
PR27 and PR29 are using the same PCB.
Re: PR29
Posted:
Sat Mar 03, 2012 12:16 am
by mark
but it looks a bit different
Re: PR29
Posted:
Sun Mar 04, 2012 4:37 pm
by mark
I've fix everything onto the PCB given by cytron but still black boxes.
Re: PR29
Posted:
Mon Mar 05, 2012 10:18 am
by sich
Have you programmed the chip? Played with contrast?
Re: PR29
Posted:
Mon Mar 05, 2012 11:22 am
by mark
tried. i solder one set on the pcb that i made ~ the other one on the pcb given ~ both same result.
Re: PR29
Posted:
Mon Mar 05, 2012 12:26 pm
by mark
this is my pcb. project still not working. presentation is tomorrow. haihz
Re: PR29
Posted:
Mon Mar 05, 2012 2:05 pm
by ABSF
mark WROTE:this is my pcb. project still not working. presentation is tomorrow. haihz
There is definitely mistakes in your PCB. The capacitor symbol after the rectifier must be a switch. and one of the cap at the 7805 is not grounded. What are the red wires? Are they insulated wires connected underneath the PCB?
Allen
Re: PR29
Posted:
Mon Mar 05, 2012 2:14 pm
by mark
ok, thanks. will edit it. red wires are the jumpers.
but when i fix everything on the pcb given by cytron, still i c black boxes. any idea?
Re: PR29
Posted:
Mon Mar 05, 2012 2:21 pm
by ABSF
If you dont know how to trouble shoot. The best bet is to send it back to cytron for them to repair 4U.
btw there is one more mistake in your PCB, between RA5 and base of transistor a 1K resistor is missing.
Allen