[Icom] Pro II Oscillation on 6-Maters, AVVID

Fri, 23 May 2003 13:32:41 -0500

I have seen it on other Icom's, the Pro II I don't work on.

Clif Holland,  KA5IPF
AVVid
Authorized Kenwood and Icom Service
www.avvid.com
1-800-214-5779
972-554-6801
----- Original Message -----
From: "William J. Wickstrom" <[email protected]>
To: <[email protected]>
Sent: Friday, May 23, 2003 9:47 AM
Subject: RE:[Icom] Pro II Oscillation on 6-Maters, AVVID

> Hi, Joe and Clif:
> I asked this very question about 6 months ago, and got no help. Mine's
> doing exactly what yours is. I thought the "warranty timer" had run out!
It
> looks as though Clif at Avvid has seen this before? I wonder what may have
> caused this failure? I don't operate 6M very often, but I sure want
> EVERTHING on my (practically) brand-new radio to work! I'd sure hate to be
> without my ProII for long, but I don't think I feel too confident poking
> around in the surface-mount ocean that is the modern HF rig myself! ;-> If
> the bands don't come back around soon, you may find my radio on your dock,
> Clif! Thanks for the info.
>
> William J. Wickstrom, W1IK/NNN0AHC
> President, Morse Instruction Coordinator
> Utica/Shelby Emergency Communications Association (USECA)
> [email protected]; [email protected]
> www.useca.net
>
> William J. Wickstrom
> Chief Engineer
> Surge Performance Sound
> [email protected]
>
> --__--__--
>
> From: "J.R." <[email protected]>
> To: <[email protected]>
> Date: Thu, 22 May 2003 08:39:06 -0500
> Subject: [Icom] Pro II Oscillation on 6-Maters
> Reply-To: [email protected]
>
>
> Hello All.
> =20
> I am having trouble with my Pro II on 6 meters.  With the antenna tuner =
> off and transmitting in any mode at any power level (even zero) as soon =
> as I speak into the mic I get an oscillation that is full power out! =
> Although I don=92t keep the radio keyed for more than one second, I=92m =
> sure it continues to product full output. Also, during oscillation the =
> power knob does nothing.
> =20
> My antenna swr is flat (1:1 at 50.125) and experience the same issue =
> using a 50 ohm dummy load. I=92ve tried a reset but it yielded nothing.
> =20
> If the antenna tuner is on there are no issues and no oscillation on =
> 6-meter. Also, on the HF bands there are no issues whatsoever=85 just on =
> 6-meters.
> =20
> Any insight you can provide would be greatly appreciated.
> =20
> 73s
> =20
> Joe
> KC5DFP
>
> --__--__--
>
> From: "Clif" <[email protected]>
> To: <[email protected]>
> Subject: Re: [Icom] Pro II Oscillation on 6-Maters
> Date: Thu, 22 May 2003 19:25:19 -0500
> Organization: AVVid
> Reply-To: [email protected]
>
> Leaking bandpass filter diodes in the RF unit.
>
> Clif Holland,  KA5IPF
> AVVid
> Authorized Kenwood and Icom Service
> www.avvid.com
> 1-800-214-5779
> 972-554-6801
>
>
>
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>