Don Allen Posted March 17, 2019 Share Posted March 17, 2019 I have a Production Intercom LS-3 Series Talkback Loudspeaker station that is dead. I am drawing out a schematic as I chase the +24V, but it is involved as it has on board control from the master station. Does anyone have any experience with this fault please. I have not found a circuit or service manual for this. Link to comment Share on other sites More sharing options...
sandall Posted March 17, 2019 Share Posted March 17, 2019 The range looks like re-badged Tecpro, so may be worth looking for circuits for the Tecpro equivalent. Link to comment Share on other sites More sharing options...
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