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Reply to "Railsounds Board 5.5 No Sound"

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

Norm, you were exactly right.  On the back of the board is the LM358 op amp.   The front has the LM4861 amplifier.   My amplifier has a blister on it.   I also found that large diameter C12 capacitor (220 uF) has an open.  

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