Something missing!!! my treadmill which is not working.

Thread Starter

petran256

Joined Nov 14, 2022
6
Hello everybody. I have this board from my treadmill which is not working. Someone tried to fix it, with no success. On my own check I noticed that the one I have circled in red is missing. It is some smps startup chip. Any help with this?

attachment(1).jpgattachment(2).jpgattachment.jpg
 

Thread Starter

petran256

Joined Nov 14, 2022
6
Yes, it worked perfectly. I got the machine from someone who died. He had given it to someone to fix but without success. I don't know who it was and I can't find out
 

MaxHeadRoom

Joined Jul 18, 2013
26,278
In both cases the IC appears to have a strange notation Q9 ? Unlike the other IC's which have the common U* designation, also even the example board in post #7 shows a empty IC location.
From the pic of the first board, the IC location does not appear to have ever had anything soldered into it?
 

ericgibbs

Joined Jan 29, 2010
16,790
hi petran,
I would say that the RED ring device has never been installed.
The Yellow rings show areas where some work or damage has been done.
Cleaned up your photo.

E
attachment(2).jpg
 

ericgibbs

Joined Jan 29, 2010
16,790
hi,
Have you posted photo's of two different PCB's.
This one shows a Q9 device. Yellow
There is a component missing in Blue area.?
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Screenshot_2022-11-17-05-23-10-378_com.miui.gallery.jpg
 
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