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Installing BCI and Kit-Projects AGC

 


Did you short the Common to Ground on the switch pads? Just leaving it open is actually setting it to a SUPER SLOW agc motion and will give you even weirder results.
Can you show me where the yellow V wire is soldered as well :)
Sorry for the multiple picture requests here, just hard to see whats what when we are not present :) thanks for sticking through the process here!
Tim Keller


On Tue, Dec 10, 2019 at 1:11 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Tim,

It doesn't make any difference where the switch selection is, the audio sounds the same. Attached is the best picture I can take.

Joel


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Tim Keller - KE2GKB
 

Hi Tim,

I shorted the common pad to the off pad and then I tried all the pads individually shorted to the common pad, very slight difference between them.

Joel

IMG_3612.JPG

 

Everything seems to be in order, How interesting.
Can you get the voltage off the S-Meter pad for me? with a signal present and with the antenna disconnected?

Last thing to check before i'm going to start blaming a bad component.
This will tell me


On Tue, Dec 10, 2019 at 1:28 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Hi Tim,

I shorted the common pad to the off pad and then I tried all the pads individually shorted to the common pad, very slight difference between them.

Joel


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Tim Keller - KE2GKB
 

Tim,

On a strong signal with the antenna connected the S meter pad just tickles my auto ranging meter, basically nothing there. Without a antenna there is nothing, 0.

Joel
N6ALT
 

So at this point we have a replacement unit pulled to the side for you out of the latest production batch if that is what it comes to again thank you for taking the time to poke at it to try to find out whats wrong!

Can you check that the unit is getting 12v Power and 5v power as marked.

I am confused and concerned as to why its not making any difference when the AGC is in the off position and the RF in/Out are shorted which would be equivelent to the AGC removed.? I have marked the off position as well just for clarification.


image.png


On Tue, Dec 10, 2019 at 4:34 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Tim,

On a strong signal with the antenna connected the S meter pad just tickles my auto ranging meter, basically nothing there. Without a antenna there is nothing, 0.

Joel
N6ALT


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Tim Keller - KE2GKB
 

Correct voltages are present, 5V is 5.23V

Joel
 

I'm afraid I'm at a loss joel,
I want to ask you to short the RFIN and Out with a jumper, Remove the Volume wire and put the switch in the off position just to make sure that its the agc (effectively/permanently remove it from the circuit) If the radio springs back to life we can work on getting you a new one agc!
We do want to say apologies for the inconvenience with over 400 units sold we know of 3 other accounts where for some-reason it "just did not work"
Tim Keller


On Tue, Dec 10, 2019 at 5:13 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Correct voltages are present, 5V is 5.23V

Joel


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Tim Keller - KE2GKB
 

Tim,

I'm afraid I cant perform anymore tests as I removed the board from my radio, but I had made a similar test only without removing the V lead and it made no difference. By the way, my radio is now working great without the module as it was before. I can mail this one back to you if you want to trouble shoot it. I did test the two diodes and they are fine.

Joel
 

No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!

Tim Keller

-- Tim Keller - KE2GKB

 

¿ªÔÆÌåÓý

Another example of why I like this forum. Tim is willing to accept this is a defect, and Joel is working hard to prove It is not! I enjoyed following your combined troubleshooting techniques. Thanks.

Sent from Mick's iPad
73
VA3EPM

On Dec 10, 2019, at 5:48 PM, KE2GKB via Groups.Io <tkeller@...> wrote:

?

No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!

Tim Keller

-- Tim Keller - KE2GKB

 

Me and David over at kit-projects try our best to stand by our stuff, we do the best we can to make sure its built right so it works out of the box. We would feel terrible selling it here otherwise. Sadly this kit sometimes just fails due to who knows what and does the above, according to David its been 3 times total. Either a dead 7002 a bad solder joint on a capacitor, we don't know. more importantly we make it right by the customer at that point! And it shows we have sold quite a large sum of agcs. Over 400 of them by our count!


On Tue, Dec 10, 2019 at 7:14 PM Mick <Mgsebele@...> wrote:
Another example of why I like this forum. Tim is willing to accept this is a defect, and Joel is working hard to prove It is not! I enjoyed following your combined troubleshooting techniques. Thanks.

Sent from Mick's iPad
73
VA3EPM

On Dec 10, 2019, at 5:48 PM, KE2GKB via Groups.Io <tkeller=[email protected]> wrote:

?

No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!

Tim Keller

-- Tim Keller - KE2GKB


--
Tim Keller - KE2GKB
 

Joel,

?I am build more today and hope to have yours in the mail today or tomorrow. Sorry for the delay.

73
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David

?N8DAH
 

No problem David, thank you and Tim for the excellent customer service and great products.

Joel
N6ALT

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