nkaudio Posted May 21, 2016 Share Posted May 21, 2016 Does anyone have a circuit diagram of a Tecpro LS 211.I have 3 faulty ones to fix - all with different problems. The board looks un-usually complex for what is a remote powered 3w amp. Anyone help please. Link to comment Share on other sites More sharing options...
paulears Posted May 21, 2016 Share Posted May 21, 2016 Probably the super-audible tone circuitry, I suspect. Link to comment Share on other sites More sharing options...
Brian Posted May 21, 2016 Share Posted May 21, 2016 Not a 211 but I fixed a 312 recently which shares a lot of similar circuitry. This one 'squealed' at the slightest provocation. Traced the fault to a dry electrolytic which was used to decouple the vcc/2 divider. Like most Tecpro kit, the supply is a single 24v rail which gets turned into +/-12v by generating a virtual ground point and referencing all audio to that. Link to comment Share on other sites More sharing options...
DrV Posted May 21, 2016 Share Posted May 21, 2016 Is it anything like the 311? I've got that one. If not just give Canford a call. They've been very helpful to me with that sort of thing Link to comment Share on other sites More sharing options...
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