QSI Decoder won't remember address

This is what I gather, as well.

QSI_reset-1 by Edmund, on Flickr

It has been years, well, since I opened them up to install the upgrade chips, that I had one of my QSI locomotives apart.

I can not say that I recall if the jumper was installed or not. My original BLI Hudson, model # 001 and the first GG1 still have the QSI decoder and they are functioning well enough that I don’t have them on the decoder replacement queue.

Regards, Ed

When I asked the OP if it was still holding, I was just looking for an update from him that the decoder was still holding the long address.

My understanding is that the jumper should remain in place on those two pins on the decoder.

Rich

Sorry guys, I’ve been away from a computer for a couple days. Weather was just too nice not to get out and get some things done. Anyway, Ed, the decoder looked closest to the third pic of four that you sent. I overlooked them the first time around as they are marked “CLR” on the board and I was zoned in on looking for “reset”. The box has 115 on the side.

The jumper is still in place and the address is holding. What was strange about the jumper is that it wasn’t in the little plastic bags of bits that come with the engine. It was floating around loose in the box. Not sure why someone would remove it.[:^)] Thanks again guys, I really appreciate it.

I’m glad I came across this thread and I’m very thankful for the “permanent rest” being identified as the cause of memory loss.

We have been experiencing a lot of frustration trying to program an address on a BLI / QSI cabforward and we were seriously considering a decoder swap. This thread saved our day when we found that the sliding reset switch in the tender was left in the reset position. Once again the problem was not with the arrow but with the Indian.

That’s a good thing.

I remember some having issues with the magnetic switch resetting the decoder using a magnetic uncoupling tool or an accidental derailment tripping the switch. I have one QSI decoder left in a BLI I1sa locomotive. Still going strong even with the plating completely worn off the drivers. It must have over 200 real miles on it.

Pete.