Shedmaster Posted March 25, 2020 Share Posted March 25, 2020 Dear Forum, I am running a newly purchased ROCO Z21 ( Black Box). My DCC fitted Loco's emit a definate electrical buzzing sound, which didn't happen on my Bachmann Dynamis previously. I have just chipped/set up a Heljan Class 33 twin pack, so, in theory, the latest electrical versions and when I turn the lights on, this buzzing is exaggerated. Has anybody else noticed similar on their set up? Do I need to lower the track voltage or similar? Many Thanks, Kindest Regards, Shed. Link to post Share on other sites More sharing options...
Shedmaster Posted March 25, 2020 Author Share Posted March 25, 2020 P. S When the lights are on these 33's, the back of the Gaugemaster DCC27 chips get extremely Hot, such that you wouldn't touch them. Thanks. Link to post Share on other sites More sharing options...
Nigelcliffe Posted March 25, 2020 Share Posted March 25, 2020 suggests something wrong and you need to investigate cause of chips getting hot ! 1 Link to post Share on other sites More sharing options...
WIMorrison Posted March 26, 2020 Share Posted March 26, 2020 13 hours ago, Shedmaster said: Dear Forum, ... I have just chipped/set up a Heljan Class 33 twin pack, so, in theory, the latest electrical versions and when I turn the lights on, this buzzing is exaggerated. ... The fact that you have just put in the decoder suggest that this is where the issue lies - what happens with your other locos? Link to post Share on other sites More sharing options...
Shedmaster Posted November 24, 2020 Author Share Posted November 24, 2020 Hi, It turns out, with the Z21, you can alter the track voltage....mine was a little too high! Many Thanks Shed. Link to post Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now