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That comment was neither required or desired. Im a controls engineer for the nuclear world, this hobby is the one thing I don't want to keep trouble shooting problems that are not my own. I do 60-75hrs a week of that.

Reminds me of a saying too: Treat others as you would like to be treated.

Engineers with that attitude you have, don't last very long in my world. 

Last edited by Coalguy

Ok, that was a little harsh, sorry.

You're saying you bought a new CCM and it was already bad?  I guess I'm having a hard time believing that it came out out the package bad.  I use a lot of these boards, it's certainly not something I see here.

Thanks

 

The next thing is removing the ccm, remove the heatsink and all wiring except the 4 pin power plug and hooking it directly to the power supply. Maybe its grounding out somewhere? Resistance to the power input on the ccm is 1.3mohms, and 20kohms across the motor leads. Seems like it would work. ROY from royz trains said he had one keep shorting out, but it was somehow related to the wiring of the older odseay board. He wants me to send it back. 

I admit the electronics portion of my EE is weak as I am a power engineer. Then at westinghouse found my calling as a controls engineer during reactor refuel and fuel repair.

Interesting comment.  Scott told me that one of the issues he's had with RS Commanders is the foam tape is too thin and the connector pins project too far out and short to the chassis.  That's apparently the chief source of returns for the RSC.

When I get any of these boards, I trim all the projecting leads before installation, it's just part of the routine.  I haven't seen them be long enough to short on the CC-M, but I suspect I haven't seen every heatsink configuration either.

FWIW, when my boards come from China, I have to trim leads as well.

The colors aren't always consistent.  Brown and gray are not the norm.  I just make sure to take notice of where I got the wire so I can match it to the new board.  Even then I don't always get it right and have to swap them.

Got the CCM installed, still have radio issues, antennas are infinite to chasis, but I noticed the radio board doesn't really fully seat on the header socket. The shell has to be hitting it and it works its way loose. Probably why the last radio board had a blown capacitor and scortch mark on the inside of the shell. Do I need a mother board that has deeper pins? I'm at a loss, I can't believe lionel would let this fly....

Thanks

Its actually less common for the R2LC to seat fully against the mother board. In most cases there as actually more pin showing. In fact thats the area where I usually solder the wire to pin 24 to run to the Cruise M. Just trim off the excess pins sticking through the board and cover with electrical tape or duct tape.

Pete

Last edited by Norton
@Norton posted:

Its actually less common for the R2LC to seat fully against the mother board. In most cases there as actually more pin showing. In fact thats the area where I usually solder the wire to pin 24 to run to the Cruise M. Just trim off the excess pins sticking through the board and cover with electrical tape or duct tape.

Pete

Its barely engaged with the pins, maybe I need to figure out why the board is angled up?

Could be Pete, I can't really say.  I have some of the Lionel back-EMF boards, those are trimmed pretty close.  I just check over any board I'm installing and trim if necessary.  Many times, I trim the back of the R2(4)LC closely as well, I put them in places where there isn't much clearance at times.  I use a thin sheet of Styrene to insulate the back.

The tallest cap usually hits the board and keeps it from being horizontal.

There was a capacitor under the mother board that was propping it up, one lead broke at the solder as soon as I moved it. Put heat shrink on the leads and moved it over so the board will sit flat. Running it now, also noticed it doent like running next to the baseboard heat, hydronic, really good ground plane. Any time I command it near it, the sound gets garbled and chuffs go out of sync.

@Coalguy posted:

Any time I command it near it, the sound gets garbled and chuffs go out of sync.

Could be electrical interference.  I was having all sorts of issues with a DCS locomotive on my workbench one day, and I discovered my LED strip lights powered with a switching power supply was injecting massive electrical noise into the track signal!  Turned off the lights and everything fell into place and worked fine.

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