Products > Test Equipment
RD JDS6600 25MHz 2-Channel DDS AW Function Signal Generator
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malagas_on_fire:
hi there.

Just a tip that the software works perfect in Debian and Ubuntu using WINE emulation. Install as if were for windows.
You will need to create a symlink to the serial port under $HOME/.wine/dosdevices dir

On the command line:

Example if it is detected as USB0 ( dmesg)


--- Code: ---ln -s /dev/ttyUSB0 com1

--- End code ---

Also follow arduino instructions to add your user to the serial port


--- Code: ---
sudo usermod -aG dialout <username>

--- End code ---


Logout and login and should be good to go.

Ohh another thing that has appened to a JDS2900 which is a similar model to this in terms of SW ( metal case) , the inputs stopped working and it needed to perform a hard reset. To do turn power off, press and keep "right" key, power up unit and change language.
 
Jacampb2:
 Hi, I'm new to the forum, but I've studied many threads on here over the years, I just never before had reason to post.

I have one if these jds6600's, the 25mHz model. I bought it a bit over a year ago and have used it a lot with no real issues. I primarily repair analog electronics. Mostly car audio amplifiers and I use the function generator as a source while testing. Today when I turned on my function generator I found ~60Vac referenced to earth on the outputs of the generator. I thought something had went South in the little switchmode wall wart, and I swapped it with another one, but the issue persists. It can't drive any real current, but I really need to deal with it. I'd rather not have to buy another function generator for this. Do any of you have any suggestions on what to do to solve this.

Thank you all in advance!

Sincerely,
Jason
Candid:
That is normal for devices using a SMPSU. You can read much about it e.g. in the FeelTech 6600 thread. You may replace the SMPSU by a linear one to get rid of this ghost voltage or you need to use an isolation transformer.
Jacampb2:
Thank you, that is what I was thinking, I just thought it was odd that after 1 year and 3 months that this issue suddenly showed up.  I would have expected to see it before, my test setup was exactly the same as I always setup. I noticed it while hooking the scope up to the amps outputs. The signal gen was attached, the amp had 12 supply hooked up, but the remote trigger was not powered yet, so it was effectively powered off. I hooked up the scope and found 60 Hz AC on the amp output.  I removed the 12v supply (it's a linear transformer supply) and the AC was still there. That's when I started looking in earnest and tracked it down to the function generator.  I tried to test the amp anyway and I get the function generator test wave riding on a 60Hz carrier. There is literally no way I would have missed this while testing in the past. That's why I was thinking it might be more serious than just the wall wart.

Thank you for taking the time to answer. I appreciate it.

Sincerely,
Jason
Jacampb2:
Well, apparently there was something more going on with this one than the ghost voltage. The attached image is what I got after powering it up this am.  Is there a way to hard reset this thing, or is it just scrap?
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