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Reply to "Railsounds Board 5.5 No Sound"

Maybe one superseded the other? I wasn't aware there were two amps on the audio board. I wonder if there's a block diagram of those boards somewhere in the world. The pinouts are fairly easy to find with a Google search but I've never seen the block diagram. It's still a real shame Lionel took those TMCC boards off the support site.

Edit: the other 8 pin SOIC might be an LM358 op amp.

Last edited by Norm Charbonneau

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