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Old Feb 26, 2009, 06:52 PM
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Question
Where does the antenna on a Corona 410ii go?

Once again: the cripple put his toy in a tree! It stayed up there overnight, but was blown down by winds this afternoon. The ant. was completely torn out with NO telltale signs of ripped wiring on the PCB.

Anybody have the ability to photo the PCB close up OR call out EXACTLY
where I need to resolder the ant?

Thank you
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Last edited by heli_ebook; Feb 26, 2009 at 07:39 PM.
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Old Feb 27, 2009, 07:18 AM
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Great job, kids... keep up the good work!
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Old Feb 27, 2009, 02:33 PM
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There are 2 coils in the corner of the PCB: a big (1mm ) round one on the xtl side and a small blue square one on the label side. Antenna goes to the end of the square one nearest the corner. It is also a point on the big coil but not visible.

Easy if you have jewelers loupe but can be done with naked eye.

If still not sure try a few places and you will see which one gives good range.


Quote:
Originally Posted by heli_ebook
Once again: the cripple put his toy in a tree! It stayed up there overnight, but was blown down by winds this afternoon. The ant. was completely torn out with NO telltale signs of ripped wiring on the PCB.

Anybody have the ability to photo the PCB close up OR call out EXACTLY
where I need to resolder the ant?

Thank you
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Old Feb 27, 2009, 02:38 PM
7000mw of raw power!
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Quote:
Originally Posted by heli_ebook
Great job, kids... keep up the good work!
Very good considering what we get paid! Sometimes takes a week to get good answer, sometimes never.
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Old Feb 27, 2009, 02:39 PM
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Appreciate your INFO, but it is NOT clear... please respecify.

The OUTER corner of the SMALL BLUE one, is that what you meant
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Old Feb 27, 2009, 02:44 PM
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Alright, let's do it this way: Does it go to the OUTER MOST SOLDER PAD which is directly above the CH1 plug, or is it elsewhere?
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Old Feb 27, 2009, 03:01 PM
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Quote:
Originally Posted by heli_ebook
Appreciate your INFO, but it is NOT clear... please respecify. The OUTER corner of the SMALL BLUE one, is that what you meant
Yes, end of the small blue coil nearest the corner. No where near CH1 pins. You do know what I mean by coil? It's tricky.

If you post a magnified pic of the label side I'll mark the spot.

These are the best RX on the market.
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Old Feb 27, 2009, 03:05 PM
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Ok, so I need to unwrap this thing entirely and lose the heatshrink?

Also, on the label side... there are (2) pieces of gummed foam padding under there. I see NO blue anything on the label side of the PCB.
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Old Feb 27, 2009, 03:16 PM
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Quote:
Originally Posted by heli_ebook
Ok, so I need to unwrap this thing entirely and lose the heatshrink?Also, on the label side... there are (2) pieces of gummed foam padding under there. I see NO blue anything on the label side of the PCB.
Yes, shrink off. Coil is near one of the foam pads. maybe the square coil is not blue on yours. Do you know what a coil is? Windings only show a little bit underneath.

There are only 2 coils on the RX. If you can't find them you need to look harder (with magnification).
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Old Feb 27, 2009, 03:30 PM
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see below
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Old Feb 27, 2009, 03:32 PM
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The main LARGE one on the component side in the corner is obvious, I have yet to find a blue one UNLESS the blue "221" labeled thing is it?
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Old Feb 27, 2009, 03:35 PM
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Does this second coil look like a coil, OR like an SMD which is blue?
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Old Feb 27, 2009, 03:37 PM
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Quote:
Originally Posted by heli_ebook
The main LARGE one on the component side in the corner is obvious, I have yet to find a blue one UNLESS the blue "221" labeled thing is it?

Wrong side of the board for one thing. Antenna connects to pad underneath lower rt corner in your pic. You can try several places and see which one works or put a magnifier in front of your camera to get clearer closeup of other side.

Do you know what a coil is? It has windings. There are only two on the board and you need to know where they are. I suggest re-reading the thread after you've done that.
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Old Feb 27, 2009, 03:41 PM
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Yeah, BUT There is ONLY the one coil I have found!
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Old Feb 27, 2009, 03:42 PM
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Put a RED x on the last photo so at least I know I'm heading in the right direction.
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