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jgamtmann2(at)gmail.com
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 Posted: Wed Sep 01, 2021 5:43 am Post subject: COM radio failure |
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Bob,
You answered my question about my inoperative GX65 a couple of weeks ago. It came back from repair with the failed component (taped to the chassis) that looks like a small capacitor, not surface mount. It has burn marks on the side, I can't imagine how I missed it when I looked over the boards with a 3X loupe. If I sent it to you, (and where would I send it?) could you possibly identify how this could have failed? I'm assuming that the radio now works, I have not installed it yet.
Â
Best regards, Jürgen Amtmann
Â
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nuckolls.bob(at)aeroelect
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| Posted: Wed Sep 01, 2021 7:45 pm Post subject: COM radio failure |
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At 08:42 AM 9/1/2021, you wrote:
| Quote: | Bob,
You answered my question about my inoperative GX65 a couple of weeks ago. It came back from repair with the failed component (taped to the chassis) that looks like a small capacitor, not surface mount. It has burn marks on the side, I can't imagine how I missed it when I looked over the boards with a 3X loupe. If I sent it to you, (and where would I send it?) could you possibly identify how this could have failed? I'm assuming that the radio now works, I have not installed it yet.
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You can send it to Box 130
Medicine Lodge, KS 67104
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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nuckolls.bob(at)aeroelect
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| Posted: Wed Sep 15, 2021 12:00 pm Post subject: COM radio failure |
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At 04:50 PM 9/1/2021, you wrote:
| Quote: | | Quote: | Bob,
You answered my question about my inoperative GX65 a couple
of weeks ago. It came back from repair with the failed
component (taped to the chassis) that looks like a small
capacitor, not surface mount. It has burn marks on the side,
I can't imagine how I missed it when I looked over the boards
with a 3X loupe. If I sent it to you, (and where would I
send it?) could you possibly identify how this could have
failed? I'm assuming that the radio now works, I have
not installed it yet. |
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Got a chance to look over the fried capacitor you
sent. Yes, the darkened condition is strong evidence
of failure (shorted leading to overheating).
This style of tantalum chip capacitor is almost
vintage . . . very early package style that was
replaced with a more robust configuration. Yes,
it's a surface mounted part. That little pigtail
is not the remnant of a lead-wire.
I suspect that the replacement part was a
more modern design but yeah, this was quite
probably root cause of the radio failure.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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