Received from Digitrax:
Soundtrax' Tsunami can only be programmed with Digitrax systems as follows:
Zephyr - All CVs except addresses can be programmed in OPS mode on the main
line.  To program addresses you must put Zephyr in BLAST mode programming by
closing Option Switch 7 on Zephyr and program the loco on the main line.

If I can find switch 7 I should be OK...

Today, using Ops programming I have been able to change the Chuff rate and the whistle selection.
Cannot READ any of the CVs or change the Loco number.

OK Jim,
After many unsuccessful hours I tried a Bachmann DCC switcher. I added a 1K Ohm resistor across the prog track  and after several tries I was able to change the Loco number from 3 to 7. Still unable to Read from any ADDR.
Initially I should stay with two digit address and only use a single digit Loco ID.
Ken can handle the single digits without a problem.
Presently SP Steam on one, Santa Fe diesel on two, 2-8-0 Tsunami still on 3 and Switcher on 7 (part of road number).
Looks like 'blast mode' may be needed.
I faxed the problem to Digitrax on the 12th - awaiting response.

Ed

Hi Jim,
I kinda jumped the gun.
A few months ago I opened the shell and found not much in there.
It was purchased used. I added a LED with resistor and it now has the best headlight on the 'road - quite bright - no heat. Since there is both an A & B unit there will be plenty of room for sound.  It runs really great on DC.
I am still trying to change the Loco number of the UP 2-8-0 - the DCS50 is refusing to operate a programming track:-((
Will try again tonight..........
Edo

Thanks to you gentleman I now have a very happy 5-year-old-engineer!!!
The hardest part was reconciling the Bachmann schematic with the actual wiring. Using red wire for both the left and right power did not help:-(  Some where I saw the blue wire referred to as 'Lights Common' which makes more sense. But it does add functionality to the lighting system. While 'inside' I added a 3mm LED to the tender for backup.Now to learn how to change CVs with the DCS-50............
Next project convert an old Athearn F7A to DCC.

Take some time to download the documents form the Soundtraxx site. They will save you from some grief.

Rich

Thanks Rich.  I have re-read the Soundtaxx docs. Appreciate the clarification on the blue wire. This week my little engineer should have his 'bells and whistles'.
I have already performed the stall tests, etc...
Edo

Thank you Jim and Rich.
My concern is if the 'Function' blue may be associated with some of the sound functions.
I would prefer to remove the Bachmann PCB and mount the TSU-1000 directly on the heat-sink.
If the PCB is not needed for DCC then there would be more airspace around the DCC assembly.
Edo
BTW I do understand about the lights.

Hello,
I am about to install a Tsunami TSU-1000 in a Spectrum Baldwin 2-8-0 Consolidation that is DCC ready.
The installed plug does not have pins 3 or 7.
I believe pin 3 is not normally used but Pin 7 seems to be needed for Function (Blue).
Should I remove the Bachmann PCB and hardwire the TSU-1000?  Or is there a component on the PCB that is not not covered by the TSU-1000?
Thanks   Edo

Hello,
I am about to install a Tsunami TSU-1000 in a Spectrum Baldwin 2-8-0 Consolidation that is DCC ready.
The installed plug does not have pins 3 or 7.
I believe pin 3 is not normally used but Pin 7 seems to be needed for Function (Blue).
Should I remove the Bachmann PCB and hardwire the TSU-1000?  Or is there a component on the PCB that is not not covered by the TSU-1000?
Thanks   Edo

"As they like to say out here;  "The price you pay for living in Paradise"."

We have the same expression in the Atlantic:-)
Cross ocean flight to Baltimore or Tampa - but the kid loves it!!

Thank you JWard.
I emailed Athearn in early January thinking it may have been one of theirs since they are similar to ATH80241 and ATH3236. Since they are discontinued I could not get further information.
Yes, there are 4 rubber mounts on the bottom!
Now I know where to find a DCC unit.

We have a slightly different problem.
We do have a dummy 'B' unit  SP EMD F7 Daylight #8091. The F7A is # 6441 which is a DC unit. We would like to install DCC in the F7A but would first like to find out the manufacturer and any info on installing DCC in that particular engine.

Thanks Lex. I did spend some time on their site.
Ed

Would seem easier to solder on an 8 pin connector.  Thank you.

Many thanks for the replies. We have the 4 inch tender.