MC2100ELS 50w v1 treadmill repair

Thread Starter

andd2404

Joined Nov 8, 2020
23
io hoI tried Col tester where one end of a stay takes the 0volt and the other end goes to the optoaccoppiator and does not give me any value, the second takes from an end the 220 volt and the other end goes to the other entrance of the optaccoppiator and does not report any value to me.
 

Thread Starter

andd2404

Joined Nov 8, 2020
23
In accordoAll right, but what I'm saying is that if LED a to the board only powered the LED you have to turn on after a small delay this should do it with this opto coupler, and clear that after I operate the tape the LED makes it flash the micro, tell me where I'm wrong.
In accordoAll right, but what I'm saying is that if LED a to the board only powered the LED you have to turn on after a small delay this should do it with this opto coupler, and clear that after I operate the tape the LED makes it flash the micro, tell me where I'm wrong.
Hello everyone, I have a problem with the pcb of the console of the Nordictrack Elite 4000, I burned the transistor BD438G I replaced it but after a while it burned me one of the two cooling fans, now disassembled, the replacement transistor I have, I ask, how do I have to weld it, I want to place the photos before and after, thank you all.

IMG_20201027_212245.jpg
IMG_20201027_212232.jpg
IMG_20201027_212219.jpg
IMG_20201027_212202.jpg
IMG_20201027_212152.jpg
IMG_20201101_121651.jpg
IMG_20201101_121449.jpg
IMG_20201101_121443.jpg
IMG_20201105_162934.jpg
IMG_20201105_162928.jpg

Moderators note : removed the HUGE amount of multiple images
 
Last edited by a moderator:

Thread Starter

andd2404

Joined Nov 8, 2020
23
[QUOTE = "andd2404, post: 1573757, member: 743780"]
Ciao a tutti, ho un problema con il pcb della console del Nordictrack Elite 4000, ho bruciato il transistor BD438G l'ho sostituito ma dopo poco mi ha bruciato una delle due ventole di raffreddamento, ora smontata, il transistor di ricambio che ho, Chiedo, come devo saldarlo, voglio posizionare le foto prima e dopo, grazie a tutti. View attachment 223545View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223545View attachment 223545View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223553View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223553View attachment 223554View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223553View attachment 223554View attachment 223545View attachment 223546View attachment 223547View attachment 223548View attachment 223549View attachment 223550View attachment 223551View attachment 223552View attachment 223553View attachment 223554
[/CITAZIONE]
Nessuno che possa aiutarmiChi mi può aiutare?

The pwm is perfect goes from 0.62 volt da 1.6 Speed set and 1.82 volt a 22 max. Speed, the only problem is the fans where we always get 12.23 volts, the transistor I changed it but it doesn't work, a help to connect it, what to check to make it work properly, thank you in waiting
 

MaxHeadRoom

Joined Jul 18, 2013
28,757
I am familiar with five versions of the MC2100 board, but yours looks quite different to any i have seen.
Some of the stages are look quite different to the ones I am familiar with.
Sorry.
Max.
 

Thread Starter

andd2404

Joined Nov 8, 2020
23
[QUOTE = "MaxHeadRoom, post: 1573820, membro: 212212"]
Conosco cinque versioni della scheda MC2100, ma la tua ha un aspetto molto diverso da qualsiasi altra io abbia visto.
Alcune delle fasi hanno un aspetto molto diverso da quelle che conosco.
Scusate.
Max.
[/ CITAZIONE]

Hi Max, this is the board of the Consol, the lmc2100 card sent for repair and until today it is repairable.
 

Thread Starter

andd2404

Joined Nov 8, 2020
23
I have only worked on the main (motor) boards.
Max.
I think the thing is simple for you and less for me, the problem is to be able to increase and decrease the speed of two 8 vdc fans, at the moment feed the board and as the output voltage increases or decreases it is always 12.22 vdc, I changed the transistor but in my opinion it is not connected right, The two small capacitors I tried are from 100 microfar to 16 volts and one of these does not give me the value ,other thing it can be.
 
Top