Proform 542e treadmill MC-2100 motor controller?

hi all i need the ic number of u5.it burtout and i cant read the numbr on it
thanks

zia
June 2012

hi all
I'm working for try to repair my motor controller 2100e revA for pro form 400
Q5 is broken in c.c. and I need to change R45 and R46 that are burned but I'm not able to read the value
If you know where I can find the schematic or values of these resistors thanks

Michi from Italy UD
January 2012

I found that R17 was shorting to the ground bus just beneath it, The board produced a loud pop and blew a piece of the run right off the board. R17 must be handling high voltage it is tied to the A+ terminal which can go from 0-100Vdc, there is just not enough insulation or clearance to ground this is just a poor design. After replacing R17 however I have encountered a new issue, now when I power on, I get the display at the control panel, and incline works fine, but the controller LED never lights up, and I get no speed. I think a amp blew, but without a schematic I am left looking up datasheets on components and tracing runs, unless any one else has any details.

nw15062
August 2011

R17 = 510 ohm

what about R32 ?
anyone knows?

remon
August 2010

Hi,

Did you manage to find a cct diagram, I am trying to find the same?

Steve
July 2009

Can anyone give the the output voltage and current on the MC-2100. I am finding it very difficult to get any info on the motor drivers boards

Ben
June 2009

Here is a good link if you can clearly see the colored lines on your R17 resistor http://www.kpsec.freeuk.com/components/resist.htm

Scott
March 2009

If you find any info on this, please post it.

I also have a bad MC-2100 board. R17 resistor in the power supply appears to be burned out.

If anyone knows what resistance R17 should be (its all burnt) I could easily replace it.

Thanks!

Islander
January 2009