[ICOM] 756 Pro blown Ant 1 input

[GGLL]

	Looking the schematic, there's no protection right at the antenna 
sockets J5 and J6 (really surprised me), but only a gas discharge device 
(R58) after the antenna tuner on/bypass relays.

The changeover relay I'm referring to is RL3 in the Control Unit.

I would had put that R58 at least at RL3 output, and, by myself, would 
add a couple of 47K 3W resistors (to avoid static build up to some 
extent) with each J5 and J6.

Regards
Guillermo - LU8EYW.

El 28/06/2010 12:42, Larry Young escribió:
> If I remembr correctly, there is a protection device in the ant input circuit. I believe it is either a fuse or a small series bulb.
> Larry K4LXV
>
> --- On Mon, 6/28/10, GGLL<nagato at arnet.com.ar>  wrote:
>
> From: GGLL<nagato at arnet.com.ar>
> Subject: Re: [ICOM] 756 Pro blown Ant 1 input
> To: "ICOM Reflector"<icom at mailman.qth.net>
> Date: Monday, June 28, 2010, 9:28 AM
>
>      What about the changeover relay?.
>
> Regards
> Guillermo - LU8EYW.
>
> El 28/06/2010 7:08, WW3S escribió:
>> I know I shouldn't have taken this rig to FD.....somehow, the input to Ant 1
>> is gone...seems open, no RX, no TX....rig works fine on Ant 2.....is there
>> some sort of diode or fuse that may have gone open?
>>
>> ----
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>>
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
> To support QSL/QTH.net: http://www.qsl.net/donate.html
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
> To support QSL/QTH.net: http://www.qsl.net/donate.html
>
>