MC2000 Treadmill controller help

Thread Starter

Z2V

Joined Nov 10, 2019
2
Hello

I have this board with a busted resistor, R44. I accidentally dropped a screwdriver on the board and broke this resistor beyond recognition. Hopefully someone can tell me the value of this. This is located on the very bottom right hand corner of the board, R44 also labeled IR1.

Thank you
 

WO1N

Joined Dec 19, 2019
1
Got one of these boards in my hand. The resistor is color code looks like 1.5 Meg 5%. It measures about 97K however, obviously because of the circuits around it. On this board, it looks like R45 was clipped. It's all near the speed control pot so it might have been some sort of manufacturing trim operation.

As many other are, I'm looking for schematics for this board too.

Ken - WO1N
 

MaxHeadRoom

Joined Jul 18, 2013
21,378
Got one of these boards in my hand. The resistor is color code looks like 1.5 Meg 5%. It measures about 97K however, obviously because of the circuits around it. On this board, it looks like R45 was clipped. It's all near the speed control pot so it might have been some sort of manufacturing trim operation.

As many other are, I'm looking for schematics for this board too.

Ken - WO1N
There are a few posts here that show it a reverse-engineered version, if you can't find it I can post it.
The resistors that show a dotted box outline are for different models, current limit control etc.
Max.
 
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