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Re: Howto putting Software into new PIC?

<self-reply>

Found a article from 5B4AIY (date 15 Mai 2016 12:33) which describe enough for me.
Also included a description and the firmware with bootloader.
I think this will work :D

72/3 de Frank, DG4FCO
by DG4FCO
12 Sep 2017 16:00
 
Forum: Juma Discussion
Topic: Howto putting Software into new PIC?
Replies: 1
Views: 106

Howto putting Software into new PIC?

Hi! As I read, Software-Updates will be done via PC into a running Juma. But, if I need/want to put the software in a fresh PIC (IC9 oin DDS), how to do this? The programming pins go to ICD2/J19, so it should be possible. Is there a small HowTo, because micro-controller programming is not my main bu...
by DG4FCO
12 Sep 2017 13:54
 
Forum: Juma Discussion
Topic: Howto putting Software into new PIC?
Replies: 1
Views: 106

Re: Circuit diagram of TRX2A Main Board Rev. C?

Hi Adrian,

thanks a lot, this helps!

vy 72/3 de Frank, DG4FCO
by DG4FCO
06 Aug 2017 09:52
 
Forum: Juma Discussion
Topic: Circuit diagram of TRX2A Main Board Rev. C?
Replies: 3
Views: 202

Circuit diagram of TRX2A Main Board Rev. C?

Hello, I wonder where the circuit diagram of the main board Rev. C is? http://www.jumaradio.com/juma-trx2/manual/TRX2manV2.6.5.pdf only contain diagram for Rev. B. As there are a few (minor?) differences between the two revisions I like to get the right one :) Can anybody give a hint/link? Thanks in...
by DG4FCO
05 Aug 2017 18:29
 
Forum: Juma Discussion
Topic: Circuit diagram of TRX2A Main Board Rev. C?
Replies: 3
Views: 202

Re: TRX2A Main Board short diagnostic

I did some high-res-fotos , so I can inspect my "Art" at a big Screen instead of looking through the magnifier.
So I may can start earlier, as I saved them on my web-site as usuall.

Please don't look, they are ugly :D


72/3 de Frank, DG4FCO
by DG4FCO
01 Jun 2017 08:34
 
Forum: Juma Discussion
Topic: TRX2A Main Board short diagnostic
Replies: 5
Views: 539

Re: TRX2A Main Board short diagnostic

OK, I will do so. Unfortunately this weekend is Grandchild-Weekend :D OK, this is not un-fortunately but funny :D
So it will take some days, maybe weeks until I can spend enough time for this.

I swear, I will give report!

72/3 de Frank, DG4FCO
by DG4FCO
31 May 2017 17:43
 
Forum: Juma Discussion
Topic: TRX2A Main Board short diagnostic
Replies: 5
Views: 539

Re: TRX2A Which screws?

Hello Juha,

also thanks to you. I should analyze more photos and try educated guess :D
Especially because some parts of the chassis was changed by the manufacturer,
as I also notive with my other handicraft work.

72/3 de Frank, DG4FCO
by DG4FCO
31 May 2017 09:37
 
Forum: Juma Discussion
Topic: TRX2A Which screws?
Replies: 4
Views: 469

Re: TRX2A Main Board short diagnostic

Hello Adrian, thanks for the values! I tried to find out, how to separate some modules to test them, but maybe it was too late in the evening for my brain. Do you have some more hints like "remove R113" to seperately test the main board? I didn't found such information in your document you...
by DG4FCO
31 May 2017 09:05
 
Forum: Juma Discussion
Topic: TRX2A Main Board short diagnostic
Replies: 5
Views: 539

TRX2A Main Board short diagnostic

Hi all! Now I am done with all parts and did checks as mentioned. Optical check seems ok, Check of DDS Board with own power supply works. Unfortunately there must be a short-circuit, so I disassemble it and check board by board. There must be a short-circuit at the main board, somewhere in the 5V Ar...
by DG4FCO
30 May 2017 15:18
 
Forum: Juma Discussion
Topic: TRX2A Main Board short diagnostic
Replies: 5
Views: 539

Re: TRX2A Which screws?

Thank's Adrian,

this Picture help a lot.
There should be more pictures outside of our building experience :D


72/3 de Frank, DG4FCO
by DG4FCO
22 May 2017 13:10
 
Forum: Juma Discussion
Topic: TRX2A Which screws?
Replies: 4
Views: 469
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