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Problems with Single Tube Nixe Clock

 
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Jan



Joined: 10 Jan 2009
Posts: 6

PostPosted: Wed Jan 28, 2009 10:09 am    Post subject: Problems with Single Tube Nixe Clock Reply with quote

Hi,

for several weeks, I tried to build the Nixie Clock. My problem is that I don't get the 170 V at the testpoint. I don't know what I'm doing wrong. Is it possible that I won't measure the 170 V because the PIC isn't already running?
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BrunoG
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Joined: 22 Nov 2005
Posts: 636

PostPosted: Sat Feb 14, 2009 3:25 am    Post subject: Reply with quote

Hi,

please check PIC BCD outputs to know if your pic is runnning,
check also voltage on pin RB6
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Jan



Joined: 10 Jan 2009
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PostPosted: Tue Mar 03, 2009 2:47 pm    Post subject: Reply with quote

Hi,

the whole PIC is not running. There is no voltage on RB6. The osc is also dead. What could be the problem?
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BrunoG
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PostPosted: Wed Mar 04, 2009 10:59 pm    Post subject: Reply with quote

Arrow verify the flash memory, check the configuration flags, the master clear pin
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Jan



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PostPosted: Sun Mar 08, 2009 10:02 am    Post subject: Reply with quote

Which program is recommended to burn the PIC? Is there anyone out there who successfully built this project?
I downloaded the hex.-file from the page, but the PIC won't work with it.
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BrunoG
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PostPosted: Sun Mar 08, 2009 10:59 pm    Post subject: Reply with quote

Yes, the .HEX file from the web page has been tested and works fine, here it is (PIC16F84A) :
http://www.micro-examples.com/public/microex-navig/doc/100-nixie-clock-source-code
if your hardware is ok, you should at least see changes on RB0 and RB1 after power up.
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Jan



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PostPosted: Sat Mar 14, 2009 8:45 pm    Post subject: Reply with quote

I don't see no changes on RB0 and RB1. The oscilator doesn' work. The program is written on the PIC. Everything seems to be ok, but it won't work.
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BrunoG
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PostPosted: Sat Mar 14, 2009 8:54 pm    Post subject: Reply with quote

what is your pic part number ? if it is a PIC16F84A-04 it won't work
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Jan



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PostPosted: Mon Mar 30, 2009 7:17 am    Post subject: Reply with quote

I use a PIC 16F84A-20P. We also tried to get the high voltage to work on a seperate PCB with an external oszi. It doesn't work...
I'm not a professional. It's just a hobby. I can solder and I'm able to read read the circuit plans. But I have no idea how to get this stuff to run.
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BrunoG
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PostPosted: Mon Mar 30, 2009 8:12 pm    Post subject: Reply with quote

about the pic : try a blinking led example test program, just to be sure your hardware & programmer are ok :
http://www.micro-examples.com/public/microex-navig/doc/100-led-blinking
about the high voltage circuit : are you using a fast recovery diode ? a standard diode will not work.
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Jan



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PostPosted: Fri Apr 17, 2009 10:41 pm    Post subject: Reply with quote

I use a BYW98-200. Should this work?
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