Does anyone have the schematic for this board?
MC2100LTS-30 232196
im interested in the circuit that sends 5Vdc to the micro. I’m sure I need to replace RG3 and RG5 but I don’t know what feeds Vin to RG5.

 

Do you mean the 20Hz signal through HD2 ? Speed signal?

 

Do you mean the 20Hz signal through HD2 ? Speed signal?

No I’m not getting 5V at VCC of the micro.

 

Try this:

https://forum.allaboutcircuits.com/attachments/mc2100_rev_engrd-pdf.152059/

 

Try this:

https://forum.allaboutcircuits.com/attachments/mc2100_rev_engrd-pdf.152059/

Thanks I ohmed out RG3 Vout to VCC of the micro on my board and when I had that connected I was getting 1.66V. It looks like I have an RG3 that gets fed by an RG5 when I was checking voltages. Which is why I was confused as to what’s feeding RG5.

RG1 looks like it goes to the incline motor sensor and that works fine.

 

Does anyone have the schematic for this board?
MC2100LTS-30 232196
im interested in the circuit that sends 5Vdc to the micro. I’m sure I need to replace RG3 and RG5 but I don’t know what feeds Vin to RG5.

What are you referring to as RG3 RG5?
The board shows LS not LTS

 

What are you referring to as RG3 RG5?
The board shows LS not LTS

You are correct the board has LS on it but on the heat sink it has a sticker that says LTS in the model number.
RG3 and RG5 are also LM78L05.

this board seems to be pretty different in this section from the other ones on the forum. I can take a closer picture later.