Hello everyone. I’m by no means am knowledgeable in electronics at the level of you guys here in this forum. I’ve hit a dead end in me trying to fix a manifold (air suspension) with a PCB with mounted valves. Airlift 3p to be exact. Trying to trouble shoot my issue, I’ve come to some possible fixes from asking folks that are knowledgeable about this stuff. The problem I have is one valve is not receiving 5 volts when I’m trying to inflate/deflate my right rear tire. One component I was told to replace was a buck converter (step down switch regulator ). I for the life of me cannot find the part. I’m hoping and reaching out to see if I can get help. I’m a fireman by trade so my knowledge in electronics is minimal but enough to trace that I’m not getting 5 volts to a valve while others are while pushing the button that coincides with it. Please if anyone can help me find the part or help me fix my manifold I would be greatly appreciative. Here are some pics of my circuit board and the the circled components I was told to replace. Thank you again for any help.
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