Hi all, I recently picked up the Morrellville Version of this trolley (Green and White)
San Francisco Muni, going by the photo below.
and it has the QSI board. It runs in one direction but nothing in reverse. I assume it is locked in the forward direction. Any idea on how to unlock or otherwise get it to run forward and reverse.
Here's the diagram again, showing where you have to wire in a switch to turn the E unit on and off:
Going by the photo below, you still have the jumper in place. Does it cycle forward-neutral-nothing?
I also have a old TMCC base - I get the impression that the QSI might be able to handle TMCC? But I am a DCS guy.
The board you have is a DCRU (DC Reverse Unit) only. No digital, no sound as far as I know. Have zero idea what the other chips and such are for, unless to support a Protosound or similar board which is connected using that socket you pointed out below.
Also I posted on the brass forum a question about soldering copper wire to brass. The ground lead separated from the brass truck motor mount. A soldering iron will not get hot enough to even form a puddle of solder to attach the wire to. I have a micro torch, but am nervous about melting things. Any advice on this is appreciated. The lights do come on when properly connected.
I'd recommend a soldering gun such as a Weller; they tend to have more oomph than a pencil soldering iron.
This is a really nice looking trolley. Glad I picked one up.
They are gorgeous cars!
Question for trolley owners - The trolley has the QSI board but no speaker. I think the speaker pins are located on the board where the arrow points? Correct? What speaker is needed here? Brand / Size / Ohms
See above.
You can see the detached ground wire. I think I will splice into the brown wire already soldered to the mount. There is plenty of extra wire under the board for the splice.
I'd have to see it in person to be sure. Be careful when powering it up!
Definitely a Muni paint job, and nicely done.
Mitch