What is this board ?

Which board are you referring to ?  I see what looks like a R2LC a sound board and a sound power supply.  They appear to be mounted on a Train America Studio mother board.   A photo of the sides would confirm what I think.

Dan Padova posted:

I think this PCB is a Lionel TMCC with sound and reversing capability.  Am I correct ?

Dan,

Basically. From left-to-right, that's a RailSounds 4 power supply, RailSounds 4 audio board (looks like an Electric sound set) and an R2LC for TMCC. They'd be plugged into a motherboard of some sort so that they're all interconnected.

TRW

Thanks !

That is a Train America Studio mother board with Lionel sub-boards.  It may have Lightning Systems in small print on one end of the board.  Hope you are using good static minimization protocols you can fry these boards with static discharge.   J

JohnActon posted:

That is a Train America Studio mother board with Lionel sub-boards.  It may have Lightning Systems in small print on one end of the board.  Hope you are using good static minimization protocols you can fry these boards with static discharge.   J

I second what John said. The boards are vulnerable to ESD damage, more so when removed and handled individually. You can eliminate this concern by purchasing a basic ESD protection kit similar to this  I am not recommending this one, just showing an example. In a pinch, you can work on other surfaces, preferably not something like static generating carpet, or the backside of your cat , by grounding one hand while working with the other - like I said, in a pinch!

I have seen some try to use aluminum foil instead of an ESD mat by running a wire from the foil to earth ground, but this is NOT a good practice - if any static charge differential exists between the aluminum foil (at ground) and the board you are about to pick up, it will all be discharged in a flash because aluminum foil is such a good conductor. The ESD mats are designed to "bleed" the charge differential away rather than "zapping it" away. All the above aside, when the boards are all connected within the engine, you are relatively safe to handle things.

George