Understanding the Beomaster 3500/4500 touch panel display

2 replies
ryan.nicholson
ryan.nicholson
Bronze
91 posts
Posted February 22, 2025 at 03:54 GMT
#1644505
Picked up a boxed and complete BeoSystem 3500 earlier today—runs great! The only minor issue is that the “Go To button” on the Beomaster doesn’t seem to work through the glass. It’s used for programming the radio, so not a huge deal but would like it working if possible. Interestingly, if you remove the glass and press the rubber nipple contact directly, it works perfectly. Just trying to figure out how the touch panel operates—some old keyboards used conductive paint to complete the circuit is that the case here?. If I can understand how it works, I might be able to fix it. Can this system work with any of the Beomaster Control Center? I know mostly designed for the 5500 series stack system. Or should I play it safe and just go with a Beolink 1000?  

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Guy
Guy
GoldModerator
4528 posts
Posted February 22, 2025 at 09:43 GMT ? Edited February 22, 2025 at 09:50 GMT
#1668891
Hi and welcome to Beoworld!  Your BS3500 looks to be in excellent condition. There is some info on this thread about touch panels and possibilities for repair:  /forum/general-discussion-and-questions/beocenter-glass-panel-replacement But are you sure that the glass panel is touching the rubber nipple when assembled?  There can be problems with the glass panel coming unstuck and lifting from the plastic surround. I would probably stick with the BeoLink 1000 for the BS3500, but you could also use Beo4.  The larger Master Control Panels (MCPs) would not work with the BS3500 because they are designed for use with two-way remote capabilities, which the BS3500 does not have. EDIT:  I also found these words on the old forum describing the way the BC9500 touch panel works - I assume that the BS3500 is similar: The unfailing sensi-touch control of the Beocenter 9500 works through a condenser effect. A graphite area is printed on the underside of the glass panel, and charged with a high frequency current. Even the lightest touch of a finger will spark the reaction.  

Location: Warwickshire, UK

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