wiring diagram 691-DREU

You have it in the picture!

The RL/RL and FL/FL are 12VAC bulbs for front and rear directional lighting.

The SW1/SW1 is for the reverse lockout switch.

The SM-/SM+ is for the smoke unit.

The M-/M+ is the motor.

The GND/3RD is for the wheels and roller.

And of course, the NC is no connection!

Ha...you make it seem so easy now... thanks for your help...

I also have a sound board coming with it...

Do you know how i would hook this up?

thanks

I guess when i get it i can check back...it looks like it may have them listed on the back...its just not very clear...

thanks

Well, the sound board looks to only have power and speaker, so it should be fairly easy.  I don't have one of those to see what the back side looks like.

does anyone know what the 3 pin connector is in the above sound device? it is much smaller than the "normal" pins...

@davido1224 posted:

does anyone know what the 3 pin connector is in the above sound device? it is much smaller than the "normal" pins...

Volume pot. Edit, per John below-Molex Picoblade   I'm thinking JST-ZH connector?

I think the picture is diesel "trainsounds"? https://ogrforum.com/...sounds-board-pinouts

Also here is one but the older style board https://ogrforum.com/...51#79142442638386751

The 3-pin connector on the Trainsounds board is for the volume control and it's a 1.25mm Molex PicoBlade connector.

ok great thanks for the help...one last one before i lookup...i guess there is also a 6 pin 1.25mm Molex PicoBlade connector for the other connector???...or does the name mean something when it comes to pin numbers?

thanks again for the help...

https://www.lionelsupport.com/...R-SENSOR-TRAINSOUNDS

https://www.lionelsupport.com/3-PIN-HARN-TRNSND

@davido1224 posted:

ok great thanks for the help...one last one before i lookup...i guess there is also a 6 pin 1.25mm Molex PicoBlade connector for the other connector???...or does the name mean something when it comes to pin numbers?

thanks again for the help...

Connector brands and names, as well as pin spacing data or numbers determine what fits.

Then you have pin spacing- common ones- 1.0mm, 1.25mm, 1.5mm, 2.0mm, 2.54mm

Bands- Molex, TE, Amphenol, Hirose are just a few. Then each brand may have series or types with names- example PicoBlade.

Also the JST sandards that might be produced in brands

• ZH (1.5mm pitch)
• PH (2.0mm pitch)
• XH (2.5mm pitch)
• PA/XA (2.0mm / 2.5mm pitch)
• EH (2.5mm pitch)
• SM (2.5mm pitch)
• RCY (2.5mm pitch)
• SH/SR (1.0mm pitch)

While there are scenario where a matching pin space distance connector may make contact over the pins, it may not lock in to the socket or deform the socket. Again brand and type matching connector sockets and shells.

Sadly, the way to learn this is looking at and possibly handling hundreds of different connector to learn the brands, styles and models used. Also, having a good set of cheap calipers to measure is another tool.

So yes, it's a skill and I still struggle.

@davido1224 posted:

ok great thanks for the help...one last one before i lookup...i guess there is also a 6 pin 1.25mm Molex PicoBlade connector for the other connector???...or does the name mean something when it comes to pin numbers?

thanks again for the help...

Yes, that is also a 1.25mm Molex PicoBlade.  The name is just the connector style, the square pin on the PCB is pin-1.  A family of connectors usually has a number of pin arrangements, typical for single row connectors is they start at 2-pin and usually go up to at least 8-10 pins, sometimes more.

ok thanks for the info...i will get a few and see if i have any luck...

I suggest you buy some pre-made cables from AliExpress for the small pitch connectors, crimping those is a giant PITA!

Here's a page that I bought a bunch of pre-made cables, makes it easy to do the job.  You get 10 pieces of the 3-pin 1.25mm cable assemblies for $1.24, and if you buy a few different lots, the shipping is combined.  They have everything but the JST-EH, but they're available elsewhere on the AliExpress site.

actually just got case from amazon and they look like they all fit right... try it this weekend... thanks for all your help...

Finally got around to this ...seems it is "stuck" in forward...even with the switch on sw1 sw1... anything else i can check besides toggling the switch?

thanks

There's no other "reset" to these, if it's wired correctly it should run.  Are you SURE the transformer totally removes power to switch directions?  Some transformers "leak" a little current that holds electronic reverse boards in their initial direction.  Try reversing by totally disconnecting a transformer lead momentarily.

so maybe a stupid question...does an american flyer 691-DREU board function the same as lionel? like 3 position from a zw transformer? i am still "stuck" in forward...seems wired ok...

thanks

I believe the switch needs to be 'off' for the reverse unit to cycle.