Locomotive Mux Failed | O Gauge Railroading On Line Forum

ChiTown SteveOGR Forum Member

I need some help. I have a Premier Hiawatha that was converted to ps3 this spring. It’s been running fine up until now. The board in the locomotive fell out it’s holder and shorted. The headlight went out and the smoke unit only works on high.

I’m not sinking anymore money into this. Can I remove the board and smoke unit and be ok with the rest of the electronics? The sounds are fine and it runs fine. I can wire 18V LEDs to the various lights and run off track power.

I don’t want the messed up board in the engine to somehow create a problem with what’s in the tender.

Thx

12/18/2112:20 PM

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gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

What was it converted from? Only the PS/2 models had the MUX board.

You can't totally remove the MUX board, the tach will stop working and you'll have a runaway. If the smoke only runs on high, I suspect damage to the tender PS/32 board.

I'd obtain a new MUX board and install it, it's the simplest repair and it's not that prohibitively expensive.

12/18/211:27 PM

ChiTown SteveOGR Forum Member

Thanks. It was a ps2 5 volt then converted to ps3. Would that be a mux board?

12/18/211:44 PM

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

That would be the MUX board I expect, the old one obviously had a mux board.

This is the boiler MUX board.

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12/18/212:09 PM

ChiTown SteveOGR Forum Member

That’s it. The socket on the left goes to the lights. The one on the right goes to the smoke and also ultimately to the tender.

Thanks for taking the time to help me out.

12/18/214:24 PM

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

If you need a mux board, I have those in stock.

12/18/215:45 PM

ChiTown SteveOGR Forum Member

@gunrunnerjohn posted:
If you need a mux board, I have those in stock.

Email sent. Paypal is fine.

12/19/2110:45 AM

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