#51

Out of Production Hardware / Re: Huntron Protrack KJ2

Last post by dogansabanoglu - November 23, 2023, 01:11:42 AM

Yes, there is the same problem on channel B.  I checked the relays you mentioned.  All working.
https://drive.google.com/file/d/1XbjqN-xBZBvM5t4fsVdNop_v_jaO_OQ7/view?usp=drivesdk

#52

Out of Production Hardware / Re: Huntron Protrack KJ2

Last post by admin - November 22, 2023, 10:27:56 AM

Does it happen with Channel B??

I researched the relays in this circuit and it could be a faulty shorting relay (there are three). The channel A shorting relay is K34 (1FA), channel B is K36 (1FA). There is also a shorting relay between A and B, K33 (1FA). These could be damaged from a surge through the probes. It could also be the switching relay (switches A and B), K35 (2FA).

#53

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by Al1234 - November 20, 2023, 03:17:04 PM

Thank you

#54

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by admin - November 20, 2023, 02:17:13 PM

The slight angle at 100Kohms at 5KHz is pretty much normal as it was difficult to compensate for low level capacitance on an analog CRT. With the current digital Trackers it is not an issue.

#55

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by Al1234 - November 20, 2023, 01:04:32 PM

Perfect that fixed it. Thank you all. Though when I set it up on 100Kohms the graph shows just a slight resistance. And back to 50Kohms line stays flat.
But It's a 1000% better now.

#56

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by Al1234 - November 20, 2023, 12:13:40 PM

Thank you. I have done this before I think. But I will do it again and report back once done.

#57

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by admin - November 20, 2023, 06:38:42 AM

Needs the Loop Calc to be run from Workstation and when prompted if you want to upload the calc settings to the ProTrack click yes (or OK, doing this from memory).

#58

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by jvthorsley - November 19, 2023, 01:59:33 PM

Sounds a good idea from Fetron.
Can't wait to hear the next episode!!

#59

Out of Production Hardware / Re: ProTrack I, hi Freq, hi ...

Last post by fetron - November 19, 2023, 12:23:53 AM

Hi!

Please warm up 20 min.
Next step: run the Autocal and testing.

#60

Out of Production Hardware / ProTrack I, hi Freq, hi Resi...

Last post by Al1234 - November 18, 2023, 11:28:42 AM

Hi every one. The protrack kj4 specialy shows capacitance in both channels in higher Frequency and resistance setting.
The kj3 unit is not as bad, as seen in the pictures.
Any suggestion where and how to start correcting this issue.
There is a tiny difference when leads are connected than when not. Seen in pictures.