LIONEL LAUNCH SOUND CAR 6-26877 no sounds in conventional

If it has a signal sound and full railsounds switch ( I don't remember if it does) Check to see if full railsounds.

@DanssuperO posted:

HI I just a LIONEL LAUNCH SOUND CAR 6-26877 army..

Is it because..? I have tmcc wired on my layout and confusing the  unit I have? and not working in conventional?

Very possible.  If you can unplug the command base, make sure any engines that are using TMCC are powered off and try again.  The TMCC signal is very robust and even if the loops are not physically connected, the signal could be interfering with conventional control.

Again make sure any engines using TMCC portion of the layout are powered off before unplugging the base.

Sounds broken if you truly have no TMCC signal reaching it.  I just took mine out, and it works just fine in conventional mode.    If it starts rolling, the prime move ramps up just like it should.  The whistle sounds the siren.

Thanks guys! I check tonight after work But as mentioned it works in TMCC .. I have a postwar navy set and wanted to add this behind it . I'm swapping shells on a 3665 and it looks good! .  The only way to make sounds  is by hitting the cab-1 aux and then all works fine .

It just at the time I tested it would not work if I used my cab-1  (when in conventional mode  hit train  id just for track  and then no sounds nor whistle or bell functions. when I press them .daniel

I'm confused.  If you are using the CAB1, you have TMCC in the mix, right?  If the TMCC signal is on the tracks and you haven't addressed the car, it will be mute.

The way I read it is that there is a TMCC loop and a conventional loop.  When on the TMCC loop it works with the Cab1, when on the conventional loop it doesn't work conventionally.  I surmised the TMCC signal is making the "leap" and keeping it quiet in TMCC mode still.  That command base needs to get out of the picture to be sure.

your correct and I thought it would  only wake up once I hit the command mode, the guy I got it from is real nice he claims he only used it in convention and he did not have tmcc or newer and it worked fine....!?..

AND he offered to take it back ! which I really want to keep!

If there's a TMCC carrier on the tracks, it's in command mode and will not respond at all to conventional transformer commands.  It will be dead silent until addressed by it's TMCC address.

Yup.  And if the two loops are either connected or close to each other, it’s going to hear the TMCC signal.

Jon

UPdate!   I unplugged my tmcc .  AND ....... the conventional works fantastic  I still have Lionel first generation  TPC  and it works with my  cab-1  ..

Actually! it the horn (siren) works better than  using tmcc functions (not sure why yet) .

Question?  do the tmcc units ever fail where they work but  go bad giving signal slowly or delay ? or what I experience on some tmcc units  poor reception???

thanks again ...daniel

Yes, the TMCC base can go out of tune and cause a lot of those issues.  There is actually a fairly simple tuning procedure to try.

This is from the Late Dale Manquen's excellent website, one of the many pearls there.  I recommend you first mark the starting position of the coil.  Also, heed the check other locomotives point, do that first.

Re-tuning L8 is a bit risky, but sometimes this is necessary. Using the least sensitive locomotive as a reference, press the horn/whistle button on the CAB-1. Use a plastic screwdriver to adjust L8 back and forth until you determine the extremes of the adjustment range that will activate the horn/whistle. Now adjust L8 to the middle of this adjustment range. Check all you other locomotives. (You could have just one bad locomotive and a good Base!)

I think  L8 would be on the board  for the TMCC correct if you show a picture I know I 'll try it but for others in the future that might read this it might be so helpful.

But should I try my "other " TMCC  with the ground and power  wall wart to it..unit to see if that helps first?

Also  any reports of power supply going to them   failing?

thanks ..daniel

Here's a link to the whole section on the TMCC Command Base, including the bit about tuning.

Trainfacts - Lionel TMCC Command Base 7/29/11

The power supplies have been known to die totally, but since they're a simple transformer, they don't normally get flaky, just overloaded and open.

Sounds like a good week end project............when can you come over (lol)  daniel thanks..again.

quote......Yes, the TMCC base can go out of tune and cause a lot of those issues.

I swapped out the TMCC  base for another I had.. EVERY ENGINE I OWN AND THIS NEW SOUND-CAR works PERFECT!! any where on the  layout it response with sounds or reverse as before it had a long time delay ..

All along I must of had a weak TMCC base..

Makes sense, a low TMCC signal will cause all sorts of subtle issues.