GR77 Posted August 25 Author Share Posted August 25 Have actually got it working well sort of i will get to that. The z21 TP LINK was the problem it was overriding the house WiFi as I've already explained as its out in the garden. I ran a length of cable clipped to layout with crocodile clips and used a piece of track in house,and clipped cable to it. Now the updates worked perfect and everything sorted it self out. I was able to switch to dcc and that worked but have to workout if I can add the sounds from the z21. Now the problems are as follows. Sound is on max but you can barely hear it and speed on max but barely crawls and keeps stopping on BT and DDC. Not sure about the CVs some have mentioned what is that all about any advice is appreciated. Another thing is the sound profiles there's nothing for the 4MT and the default is rubbish. Link to comment Share on other sites More sharing options...
GR77 Posted August 25 Author Share Posted August 25 (edited) Just quick follow up. Have put old chip back in and it runs perfect now it's obvious the hornby chip at fault. Any advice as usual will be appreciated Edited August 25 by GR77 Link to comment Share on other sites More sharing options...
SteveM6 Posted August 25 Share Posted August 25 Which loco and manufacturer are you fitting it to? Link to comment Share on other sites More sharing options...
GR77 Posted August 25 Author Share Posted August 25 Bachmann 4mt Link to comment Share on other sites More sharing options...
SteveM6 Posted August 25 Share Posted August 25 HM7K decoders and profiles are 'tuned' to suit Hornby motors and will occasionally result in rough running in non Hornby locos (Heljan are the worst). Perform an auto calibration exercise on the HM7K decoders in the 4MT to retune it to the characteristics of the Bachmann motor. Link to comment Share on other sites More sharing options...
Rallymatt Posted August 25 Share Posted August 25 Read latest info in manual on the Auto Calibrate. 👍 Link to comment Share on other sites More sharing options...
Fishmanoz Posted August 25 Share Posted August 25 Two a CVs have been mentioned but the CV29 one was in error. The other CV, CV12 controls BT v DCC and you clearly know how to do that adjustment. I would expect your running and sound volume problems will be fixed by correct setup. Likely changing from default is going to fix that - see next. Does anyone have a profile recommendation for 4MT? Clearly using default is not working. Link to comment Share on other sites More sharing options...
GR77 Posted August 25 Author Share Posted August 25 35 minutes ago, SteveM6 said: HM7K decoders and profiles are 'tuned' to suit Hornby motors and will occasionally result in rough running in non Hornby locos (Heljan are the worst). Perform an auto calibration exercise on the HM7K decoders in the 4MT to retune it to the characteristics of the Bachmann motor. Is this in the setup list I will look tomorrow as not seen anything that said about calibrating. Link to comment Share on other sites More sharing options...
SteveM6 Posted August 25 Share Posted August 25 (edited) GR77 - It's in the manual. Fishy, nowt wrong with the default, it's 99.9% certain to be just the auto calibration that's needed. As for a suitable profile for a 4MT start by matching the number of cylinders and if possible the original operating company to get a similar whistle. For a two cylinder like this one I would choose from 2MT, Black 5 or Britannia. Edited August 25 by SteveM6 Link to comment Share on other sites More sharing options...
GR77 Posted August 25 Author Share Posted August 25 (edited) Thanks just need to sort this auto calibration out get the thing working . Edited August 25 by RB51 Banned word removed. Link to comment Share on other sites More sharing options...
96RAF Posted August 25 Share Posted August 25 3 hours ago, GR77 said: Thanks just need to sort this auto calibration out get the thing working . Auto-cal 101, short method. In DCC mode and loco on a longish (2 metres) length of track, set F0 to off (directional lighting). Next write value 0 to CV149. This arms the auto-cal. Now select F0 to fire auto-cal and the loco will race off at max chat, then stop. Auto-cal is now complete and CV149 will have set itself at value 2, which is the correct running configuration. Other associated CVs will have been written to suit. Your loco should now run much better. Link to comment Share on other sites More sharing options...
GR77 Posted August 26 Author Share Posted August 26 Can this not be done on the layout programme track? Never messed with CV,s hope I can sort it many thanks will let you know if I can sort it Link to comment Share on other sites More sharing options...
96RAF Posted August 26 Share Posted August 26 It used to be restricted to DCC control but that might have been fixed by now. Try it from the app, same method, but setting CV149 in the CV editor. You can't run a loco on the program track as Prog output is low current, short duration, hence unsuitable for the full test. Link to comment Share on other sites More sharing options...
GR77 Posted August 26 Author Share Posted August 26 Thank you but may struggle with CV,s as never touched them Link to comment Share on other sites More sharing options...
ColinB Posted August 26 Share Posted August 26 As a matter of interest how did you manage to fit a HM7000 into a Bachmann 4MT? I have this loco and I had difficulty fitting the smallest Zimo sound decoder into it. As to the motor control I can't remember there being that many issues with running. I did my one with a Zimo and a friends one with a LokSound. Link to comment Share on other sites More sharing options...
SteveM6 Posted August 26 Share Posted August 26 4 minutes ago, ColinB said: As a matter of interest how did you manage to fit a HM7000 into a Bachmann 4MT? I have this loco and I had difficulty fitting the smallest Zimo sound decoder into it. As to the motor control I can't remember there being that many issues with running. I did my one with a Zimo and a friends one with a LokSound. I can't remember the details (fitted too many decoders in the last year or so to recall them all) but I have HM7K decoders and powerbanks fitted to both the tender and tank versions of the 4MT. Not difficult but they do need a little ingenuity. Link to comment Share on other sites More sharing options...
GR77 Posted August 26 Author Share Posted August 26 53 minutes ago, ColinB said: As a matter of interest how did you manage to fit a HM7000 into a Bachmann 4MT? I have this loco and I had difficulty fitting the smallest Zimo sound decoder into it. As to the motor control I can't remember there being that many issues with running. I did my one with a Zimo and a friends one with a LokSound. Well this is a problemcivhave yet to sort. The old decoder which is not much smaller I had to remove smoke box door feed the wires through connect it then push the chip in, this is going back years it may have been an original hornby I can't remember. I can send photo later if you like with sizes. Link to comment Share on other sites More sharing options...
AV59 Posted August 26 Share Posted August 26 22 hours ago, GR77 said: Have actually got it working well sort of i will get to that. The z21 TP LINK was the problem it was overriding the house WiFi as I've already explained as its out in the garden You could switch off the auto connection in your tablet settings and manualy select the WIFI you require . Or just switch off the TP LINK the Z21 will still supply power to the track without it , it's only needed to connect your device to the Z21 . 1 Link to comment Share on other sites More sharing options...
ntpntpntp Posted August 26 Share Posted August 26 (edited) 26 minutes ago, AV59 said: You could switch off the auto connection in your tablet settings and manualy select the WIFI you require That would be my suggestion. I have a cheap tablet that gets used on our house WiFi sometimes but mostly it's for accessing a show lighting controller. It has run the HM7000 app on occasion with my TT:120, and I've also used it with a Z21 at an exhibition. I've set it not to connect to any network automatically but let me choose. Edited August 26 by ntpntpntp Link to comment Share on other sites More sharing options...
GR77 Posted August 26 Author Share Posted August 26 Never thought of that🙄 Link to comment Share on other sites More sharing options...
AV59 Posted August 26 Share Posted August 26 5 hours ago, 96RAF said: It used to be restricted to DCC control but that might have been fixed by now. Try it from the app, same method, but setting CV149 in the CV editor. Tried it on the app a couple of days ago but isn't selectable . Had to set CV149 on the Z21 programming track . Then back on the main despite setting a F0 button on the Z21 app it wouldn't trigger . So back to Hornby BT control and that worked . Bit of a faff . Link to comment Share on other sites More sharing options...
ColinB Posted August 26 Share Posted August 26 If you have smart phone and data coverage and of course enough data transfer available on your phone, you can switch off the Wi Fi and do it by using data transfer on your phone. I got the idea off New Modellers, so I checked it out with one of my HM7000 and yes it works quite well. Link to comment Share on other sites More sharing options...
Rallymatt Posted August 26 Share Posted August 26 (edited) Unusual that you couldn’t arm auto calibration (CV149) from the App, I have been using it that way for well over a year. You don’t need to be on BT control to change any CV settings, so you can use a phone/tablet to arm the Auto Calibrate, initiate via your set control method, refresh the CVs and the auto calibrate reverts (now) to 2 which is the running value. Edited August 26 by Rallymatt Link to comment Share on other sites More sharing options...
AV59 Posted August 26 Share Posted August 26 1 hour ago, Rallymatt said: Unusual that you couldn’t arm auto calibration (CV149) from the App, I have been using it that way for well over a year. You don’t need to be on BT control to change any CV settings, so you can use a phone/tablet to arm the Auto Calibrate, initiate via your set control method, refresh the CVs and the auto calibrate reverts (now) to 2 which is the running value. Using the Hornby app I can go into cv settings select cv149 which gives me 3 buttons for 0 2 and 4 none of which do anything when pressed . Link to comment Share on other sites More sharing options...
Rallymatt Posted August 26 Share Posted August 26 (edited) CV 149 is ordinarily set to 2, you should also have options of 0 and 1, select 0 to arm Auto Calibration, exit. Then using whichever system to ‘drive’ with press 0 on the functions options (lights) That initiates the Auto Calibration and loco fires off at high speed for 1-2m and stops dead. That’s the motor calibrated. If you then do a CV refresh the values are populated and CV 149 will have returned to value 2. Note prior to running Auto Calibration you should reset all CVs to factory settings, ie CV8 full reset. It is worth spending a bit of time reading the manual, it seems daunting but it’s really well written and explains DCC better than any publication I have ever seen. I must admit I’m not a fan of online manuals, I like to flip back and forth with bits so I printed a copy out, I appreciate its constantly updated but it’s enough to get into the system and understand how things work with it. Edited August 26 by Rallymatt 1 Link to comment Share on other sites More sharing options...
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