IT NOW WORKY !!! Doing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

[ExeterGeek]

(see reply for details)
Tomorrow night I'm off round to another G scalers house to see if we can do a factory re-set on the chip.

Can anyone point me to the instructions online ? (I could find 36120 but not the 36122). The gentleman concerned is even more of a neophyte to the dark arts than me and as far as i know is not very IT literate either. In the month since using his DCC stuff in earnest he has managed to accidentally child lock it, try and use it in German after not realising he could toggle it to English, done a factory re-start on his central station becuause thngs didn't seem to working.

AS an experienced DC man then he wants to start from ground up and has fitted chip (and sound himself). Apparently he has had sound, motors and lights at various times, but never all at once.
I'm thinking a factory re-set on the decoder is the way to go forward and see what we get? Will that give the default buttons and values?
I'm assuming the literature will specify what the CV is and factory reset value?
Programming will have to be done via a Navigator - locally (Exeter) we don't seem to have a member with a software enabled read/write facility (hence my comment about the SPROG/JIMRI) earlier and there's 3 of us now blundering forwards into the brave new world.
Chris

 

[whatlep]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

The chip Piko sell for the railbus is a badged Uhlenbrock 77500. The English language manual's link appears to be broken (it was here: http://www.uhlenbrock.de/intern/20/1/english/ ) but the German one is still accessible from here: http://www.uhlenbrock.de/intern/20/1/deutsch/I96EEA63-052.apd/Bes77500.pdf You should be able to translate it using one of the various tools, but the CV table is reasonably straightforward. I can help translate if required.

Your first action should be to configure CV59 to "1". That resets everything to the factory values. After that, change CV1 to the required loco address and check what settings you need for CV29. The factory default for CV29 is - unusually - 28 speed steps which may be an issue if you're using LGB MTS2 kit.

 

[ExeterGeek]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

Thanks, that information is really useful and after playing around with my own stuff tonight then I understand much more about the process and what some of the numbers mean. I'll take along my MTS 3 stuff but the guy in question has gone down the PIKO route (I think has used PIKO in his N and OO/HO gauge layouts for years) so has the PIKO central stations/Navigator. The Navigator looks like a re-badged Dimax but in perhaps a couple of months we'll be able to do a post about cross compatibility. I'm assuming that the documentation that came with the decoder will still be there (and in English).
Chris

The chip Piko sell for the railbus is a badged Uhlenbrock 77500. The English language manual's link appears to be broken (it was here: http://www.uhlenbrock.de/intern/20/1/english/ ) but the German one is still accessible from here: http://www.uhlenbrock.de/intern/20/1/deutsch/I96EEA63-052.apd/Bes77500.pdf You should be able to translate it using one of the various tools, but the CV table is reasonably straightforward. I can help translate if required.

Your first action should be to configure CV59 to "1". That resets everything to the factory values. After that, change CV1 to the required loco address and check what settings you need for CV29. The factory default for CV29 is - unusually - 28 speed steps which may be an issue if you're using LGB MTS2 kit.

 

[ExeterGeek]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

Back after 3+ hours and it now worky !!
Got there and nothing.
Test the track using one of my locos first to make sure the electronics work.
Changed the loco ID first in case it just a basic address problem.
So, factory reset next as above:
CV 59 = 1 (Factory reset)
CV 29 = 28 (speed steps)
That gets us lights and sound but no motor functions.
Still, getting lights and sound was progress.
Turning the handset suggested current was being fed to the track but multimeter wasn't picking up that it was being drawn.
Time for a break, coffee and head scratching and appraisal of what knowledge had been passed on - Navigator usage - setting a loco address, changing a CV, F button usage.
10.15 pm one of those "nothing to lose if we try it ideas" - CV 7 on the PIKO Bus decoder sheet (not quite the same as the Uhlenbrock 77500 in English or German) offered three other reset options - I can remember what 55 was, but 66 was motor function and 77 was lights and sound. 66 and we were in business - light, sound and working motors and I was able to leave leaving behind a happy G scaler ( and a happy G scaler's wife, as G scaler would no longer be grumpy). Much kudos to Whatlep for the help and advice.
Chris

 

[whatlep]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

Well thanks for the kind words, but now you've got me wondering whether the chip really was an Uhlenbrock! The thing is, on the Uhlenbrock CV7 is software version info only. The CV7 reset function is a Massoth chip feature as you know. Most curious! What happens when your friend uses function F1? If the chip is a Massoth and you've set CV59 to "1", then the loco should go into "shunting mode" and move very slowly. If that happens, stop the loco and press F1 again to turn off shunting mode and reprogram CV59 to "8" (factory default).

Of course if everything is working fantastically, just ignore me and I'll bathe in my technical glory....

 

[ExeterGeek]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

F1 gives the sound of the engine starting (twice because there are two engines) up AND turns on the cabin lights, or alternatively turns the engine off (not sure about the cab lights). We discovered by trial and error that unless you turned the engine on first, one didn't get sound (i.e F8 sound on/off made no difference) if the motor was running. Don't think we were facing shunting mode to judge from the sound, but with it on rolling road then hard to tell - whereas after this conversation last night I spent some time discovering the delights of F8 (shunting speed) on the Massoth chips. I need to update my blog but I'm thinking of a separate page on "Dimax and Decoders for dummies" with simple walk throughs of how to do things. I know it will have to controller and chip specific but is the sort of thing I would appreciate as a newbie.

Could be a while before there's a video but I suspect people will be interested to see and hear the PIKO railbus with the dedicated PIKO chip and sound.

 

[ExeterGeek]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

I know that you all like videos so here's one from yesterday
http://youtu.be/B2uvqbqumC4?t=1s .... I'll read in the literature was CV 8 does.

 

[ntpntpntp]

Reoing a factory reset on a PIKO 36122 - the Piko Railbus chip ?

... The layout was wired for DC running previusly though with "blocks" still in place. All the switches were on as the DCC stuff was connected but the DC breaks had been made by only breaking the connection on one rail and we wondered if this would make a difference.

Shouldn't make any difference. I wired my layout in blocks with single rail breaks from the start, even though 95% of the time it runs with DCC with all sections on.

Lights seemed to go on/off on particular bits of track on my chipped Stainz as well.

Without you changing the throttle speed at all? (lights going off and on as you change speed can be a sign of mismatched speed steps 'twixt decoder and command station).

Assuming you left the throttle alone, then lights going off and on is a sign of dirty track/pickups - enough for the decoder to loose power for a moment. After such a loss, some decoders remember the previous light setting but others wait until they receive a "lights on" command in the DCC stream. IIRC my locos with LGB "small loco decoders" in particular seem to have a delay before the lights come back on after a glitch. My NCE DCC system has a setting to change how frequently it re-sends commands such as lights.