cbmeeks Posted August 9 Share Posted August 9 (edited) Some of you may remember my last posts on getting a 520ST working. Well, I came across a pretty good deal on eBay for a 520STm that was NOS and claimed to work. I just received it and it indeed works! However, I am hearing a constant buzzing sound out of my speakers. I have a composite cable I bought from eBay months ago. When I did manage to get my other 520ST to work (briefly), I don't recall the cable making this buzzing sound. Which makes me think the cable is OK. I can test it for shorts.. But what really has my curiosity is a cable on the ST that seems to be some kind of mod. It's coming from under the video section into the RF modulator. I can desolder it and see if the buzz goes away but does anyone know what the issue might be? Thanks! Edited August 9 by cbmeeks Quote Link to comment Share on other sites More sharing options...
cbmeeks Posted August 10 Author Share Posted August 10 LMAO. After researching schematics and other sites, I thought I would just see what would happen if I connected a keyboard. I did so and the buzzing went away. LOL Man...I clearly have a lot to learn about ST's. 1 Quote Link to comment Share on other sites More sharing options...
tjlazer Posted September 1 Share Posted September 1 Yes I learned this lesson early on, all ST's make that annoying sound without a keyboard connected. Quote Link to comment Share on other sites More sharing options...
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