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  • in reply to: detecting uSD #26379

    Ray, I don’t think the solder was/is touching anything else. I validated this by doing continuity tests with a meter. I let the solder reflow with no effect. I also removed the solder and resoldered it from scratch. After all this, there is no change to the functionality. So I think it is something else. Any other ideas?

    regards,
    Chris Corbett

    in reply to: detecting uSD #26377

    Ray, I have another clue to this issue. If you open up the attached photo, you will see an arrow pointing to one of the pins on the 40-pin IC socket. I don’t see anything wrong with the solder joint. But if I touch this joint with a pick, it starts connecting. I’m not applying any noticeable pressure. I’m just using the pick since my fingers are to large to touch 1 joint at a time. I can try removing and reapplying the solder here. But I’m wondering if it is a bad IC. What do you think?

    thanks,
    Chris

    in reply to: detecting uSD #26376

    Thanks for the reply Ray. I received the error before I purchased the card. And I’m still having the error with the card removed. What is the next thing to look at?

    FYI – One mistake I made when putting it together in the first place was leaving off the smallest of the 3 crystals. Once I put that crystal in, it worked as it was supposed to work. And then it was when I put the card in the enclosure when I started having the same issue. I’ve used a multi-meter to look for any solder bridges and I looked with a magnifying glass and a bright light for any bad solder joints. Do you think uploading a couple photographs might help?

    thanks!
    Chris

    in reply to: 2.1u DYI build LCD issue #26373

    I figured it out myself. One of the pins connecting the lcd board to the main board was loose and was pushed away from the mainboard and didn’t make connection when the lcd board was attached. All I had to do was solder it in place.

Viewing 4 posts - 1 through 4 (of 4 total)