RLR438
Member
Added an external speaker to the sds200, when on you can hear the hum from the speaker more prevelent without the speaker connected the hum is still there, anyone else notice this. If so how did you correct, tks.
SDS200: info on sds200
- Thread starter RLR438
- Start date
How old is the 200?
That sounds like the Display Grounding issue...
I fixed it myself on mine... I have no hum at all now...
forums.radioreference.com
That sounds like the Display Grounding issue...
I fixed it myself on mine... I have no hum at all now...
SDS200: - My SDS200 HUM fix
Here are my 2 cents on this hum issue.. I took the cover off and I do have a factory installed NMP200 so I removed it.. The hum did get much more noticeable! So I took it all apart to see what, if anything could be done and here are my findings: The NMP200 simply connects the "screen ground"...
There is a couple different ways to do it...
forums.radioreference.com
SDS200: - Unauthorized modification to fix hum
I recently purchased the latest version of the SDS200 with serial #9800 and noise mitigation factory installed. And again the humming noise was quite evident. So I decided to do Unauthorized modification to see if I would get better results. Using an existing solder point on the bottom side of...
