nrg kit pll

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radium98
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nrg kit pll

Post by radium98 » Fri Jul 27, 2018 3:06 pm

Please if it is possible if anyone have an original close picture for nrgkit pll 3 pro can upload in high quality thanks
th pll part is enough .i have found many on the net but poor quality for pll 3

Electronically
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Re: RE: nrg kit pll

Post by Electronically » Fri Jul 27, 2018 3:09 pm

radium98 wrote:Please if it is possible if anyone have an original close picture for nrgkit pll 3 pro can upload in high quality thanks
th pll part is enough .i have found many on the net but poor quality for pll 3
You can find what your looking for from here

https://web.archive.org/web/20060113034 ... .uk:80/fm/

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radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 7:45 am

thanks you for the web archieve link ,but picture are not recovered :( for pll3 pro .
i wait someone to upload one thanks.

nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sat Jul 28, 2018 9:54 am

Here's is one sitting on my desk, what exactly were you wanting to know about these boards? I have all the info on them, Albert H has also posted a lot of detail about these boards in various posts on the forum.
image.jpeg
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radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 10:21 am

Thanks bro .my board as vco work okey but i have always the green lock led lit tge red one never .where it is unlocked.i replaced all the ic exept the 4059 one still the same so i cannot find what is wrong

nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sat Jul 28, 2018 11:05 am

radium98 wrote:
Sat Jul 28, 2018 10:21 am
Thanks bro .my board as vco work okey but i have always the green lock led lit tge red one never .where it is unlocked.i replaced all the ic exept the 4059 one still the same so i cannot find what is wrong
I suppose you don't have access to a scope?

nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sat Jul 28, 2018 11:26 am

It wont be the 4059, that's the freq divider. When its in lock, eg 100MHz, RF is sampled from one half of the oscillator and because its a half freq oscillator that sample will be 50MHz. The sample goes into IC4 where its divided by 4, so 12.5MHz, from there it goes into the 4059 IC5 where its divided again depending on the freq set on dip switches. If 100.0 MHz is set it get divided by 1000, if 102.2MHz is set it gets divided by 1022, 88.3Mhz is 0883 and so on..... So that means the 12.5Mhz from IC4 = 12.5MHz divided by 1000 = 12.5KHz, and IC2 divides this again by 2 so = 6.25KHz. IC1 divides the crystal 6.4MHz by 1024 which also = 6.25KHz. Both IC2 and IC1 feed into IC3 where they are compared and the error voltage generated.

If you have a voltmeter, check the voltage on the emitter of TR1, it should be around 3.2v when in lock. I would also be looking TR11, 12, and 13 - if these are faulty, it will not lock and the lock/unlock LED's could be doing anything.

radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 11:27 am

I have 6.25 khz and the xral 6400 khz .so quartz clock generation is okey
The big ic chip is labeled HEF 4059BP

radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 11:30 am

My question is why in an unlocking state the red led is not litting .thanks for clarifying the working of the pll thats seems very close to the well known copy vero...a

radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 11:31 am

Transistors are okey and i swapped all the ic with a vero... board and it locks .all voltages are correct .i only have doubt with the hef 4059bp

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Re: RE: Re: nrg kit pll

Post by Electronically » Sat Jul 28, 2018 11:44 am

Have you checked that the trimmer is solid to the solder underneath .Or could be the trimmer is not giving you full swing .double check that if not double check all your solder joints .
radium98 wrote:My question is why in an unlocking state the red led is not litting .thanks for clarifying the working of the pll thats seems very close to the well known copy vero...a
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radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 1:12 pm

Vco tune in all band on receiver .i have removed hef4059 from socket and still the red led not lighting litting

nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sat Jul 28, 2018 1:17 pm

Have you checked the actual LED itself works?

radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 2:36 pm

yeah sure with ohmeter it light at ohms needle .
is IC HEF4059bp compatible work like the original 74HCT4059N ?

radium98
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Re: nrg kit pll

Post by radium98 » Sat Jul 28, 2018 5:53 pm

???????

Albert H
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Re: nrg kit pll

Post by Albert H » Sat Jul 28, 2018 9:18 pm

NO!!!

The HEF4059 is a slower "ordinary" CMOS part and has a maximum input frequency of about 1MHz. The part that you MUST use is the 74HCT4059 - this has a maximum input frequency of around 20MHz
"Why is my rig humming?"
"Because it doesn't know the words!"
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nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sun Jul 29, 2018 2:26 am

radium98 wrote:
Sat Jul 28, 2018 5:53 pm
???????
Sorry, been sleeping and got up to freezing cold winters morning! Looks like Albert has the answer to your pll pro3 problem! Replace the 4059 with the proper part.

radium98
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Re: nrg kit pll

Post by radium98 » Sun Jul 29, 2018 8:00 am

thanks you that is my problem i think , but i only can found in the market an 74hc4059 will that suite ?

nrgkits.nz
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Re: nrg kit pll

Post by nrgkits.nz » Sun Jul 29, 2018 8:54 am

radium98 wrote:
Sun Jul 29, 2018 8:00 am
thanks you that is my problem i think , but i only can found in the market an 74hc4059 will that suite ?
Yes that will work, looks like it supports upto 32MHz
https://www.digikey.com/number/en/texas ... 4059/13020

radium98
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Re: nrg kit pll

Post by radium98 » Sun Jul 29, 2018 11:30 am

Thanks but what i guess that is weired lets say 87.50 the lowest frequency band , coming from half oscillator and then to flip flop prescaler 74als74 then enter to FIn of the 74hc4059 then what it will we its value isnt in khz ? If yes so why the hef4059bp version not work.

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