External Power

[Swiss-Toni]

Getting a reading of 1.3v of the transformer

[Swiss-Toni]

[user=1]slychiu[/user] wrote:

There may be overcurrent or short circuit on the 12V output supplying slaves and keypads etc  This causes the voltagfe to go to the low level you measured. Remove all dvices eg UCM, Keypads etc that use 12V from Comfort, then check if the 12V recovers. You may have to wait a few minutes as the resettable fuses must cool down before the voltafg can recover

The reading is with everything removed already, done that yesterday Im thinking that a complete power down to coll it down ect

[slychiu]

The old big transformer or the new DC15 V power supply?
  Are you measureing DC or AC. If you use the big transformer you should measure AC, If using the new Meanwell dc supply you should measure DC

[Swiss-Toni]

With the sem disconected and the ethernet conected to the Sem the ethernet lights come on but as soon as connected to main board it all shuts down

[Swiss-Toni]

Its the old big transformer

[slychiu]

maybe a fault on the SEM. check if the system works without sem

[Swiss-Toni]

System does not with the sem disconected, i replaced the sem board yesterday will try the old one back in there in all likelihood I would say it was the main board that is knocking everything out

[Swiss-Toni]

I believe I have located the fault, although everything was disconected I realised that there was a black and red cable connected to the 12V/COM which I overlooked. Removed the cable and reconnected the ethernet & RPI which both then fired up, these cables have never been touched in the last ten years so I will replace those and let you know tha outcome in a few days. Thanks for your insight

[slychiu]

as I suspected. Good that yu found ito

[Swiss-Toni]

Have mangaged to get it u and running for the most part, however cannot quite get the scs6 to stop flashing once they are pressed, the same programming has not changed and they do work to a point some things still not responding which I will takle later on but how do I get the scs6 led lights to stop flashing anyone know, its not a case of removing the power from the scs6 and putting back! this seems to have developed as a fault on all of them