hello I just wanted to know the value for r 49 and r 51 in mc2100lts 30 treadmill

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https://forum.allaboutcircuits.com/threads/mc2100lts-30.172023/post-1540628

 

R51 appears to be 18Ω, R49 68Ω
If they are faulty, it most likely is that the SMPS device on the G5551 is defective.

 

I should change these or should change whole controller board where can buy it at affordable price

 

It may be a lot cheaper to try the fix first.
Although the SMPS IC seems to be getting scarce.
If you are capable, the SMPS circuit can be replaced with a regular small PS such as a wall wart or discrete transformer and rectifiers.
Check for the LV DC on HD2 pins 1&2 for 12vdc.
Where are you located?

 

It may be a lot cheaper to try the fix first.
Although the SMPS IC seems to be getting scarce.
If you are capable, the SMPS circuit can be replaced with a regular small PS such as a wall wart or discrete transformer and rectifiers.
Check for the LV DC on HD2 pins 1&2 for 12vdc.
Where are you located?

It may be a lot cheaper to try the fix first.
Although the SMPS IC seems to be getting scarce.
If you are capable, the SMPS circuit can be replaced with a regular small PS such as a wall wart or discrete transformer and rectifiers.
Check for the LV DC on HD2 pins 1&2 for 12vdc.
Where are you located?

At st peters mussoorie

 

Could you please help me where I can find these near me as I live in st Louis

 

Not familiar with suppliers in your area, but one of the principle suppliers I use in the US is DigiKey, there are a few others.
Have you decided which route you are going?
Try to replace the current defective devices?

 

Thanks for your help I will try replace the defective parts now

 

I believe this is the third 2100 board I've come across. Previous boards were to far gone for help. My current one has a 5 pin attachment at LD1. I seem to remember the others had had wires plugged in here so never gave it any thought. Now I can see what's there there is no marking to distinguish pin assignment. I was unable to locate a board schematic and hare to be a bother as I'm just tinkering while I'm sure everyone else have more important matters. Anyway thanks.

 

while I'm sure everyone else have more important matters. Anyway thanks.

Huh?
Was there a question pending?