From holden7471 at msn.com  Sun Nov  9 20:14:55 2014
From: holden7471 at msn.com (Howard Holden)
Date: Sun, 9 Nov 2014 17:14:55 -0800
Subject: [Kenwood] TS-440S issue
Message-ID: <COL128-DS854A7EB0906A41E3D8082C4800@phx.gbl>

Got a TS-440S which has suddenly acted up on transmit ? not the dot problem. This is a later issue radio.

Seems like I?m getting RF feedback into the rig, regardless of which antenna I use, even a dummy load. Problem is particularly acute on 40M but present on 80 thru 17M as far as I?ve checked. Depending on the antenna, I can get only 20 to about 50W out before there?s a buzz on the signal, and increasing power beyond that makes the display blink on and off rapidly and irregularly. 

I find nothing loose internally, I removed and reseated the connectors on the pot control boards thinking there might be a drive pot issue. I?ve relocated all antenna lead-ins and checked the tightness of all connections. Put the keying lead a number of turns on a toroid (T-240-43, which works great for TVI), got choke baluns on antenna lead-ins. 

Any good ideas out there, anyone with a similar problem?

Thanks

Howie WB2AWQ/7

From clif at avvid.com  Mon Nov 10 08:40:11 2014
From: clif at avvid.com (Clif)
Date: Mon, 10 Nov 2014 07:40:11 -0600
Subject: [Kenwood] TS-440S issue
In-Reply-To: <COL128-DS854A7EB0906A41E3D8082C4800@phx.gbl>
References: <COL128-DS854A7EB0906A41E3D8082C4800@phx.gbl>
Message-ID: <CAAuGyVCexu-Qyh39yDfq1wnNbm1ikh8GB7NeKMn3BXrKopAUaQ@mail.gmail.com>

Check the RX BPF diodes on the RF Unit for leakage. Common problem. Usually
D6.

On Sun, Nov 9, 2014 at 7:14 PM, Howard Holden <holden7471 at msn.com> wrote:

> Got a TS-440S which has suddenly acted up on transmit ? not the dot
> problem. This is a later issue radio.
>
> Seems like I?m getting RF feedback into the rig, regardless of which
> antenna I use, even a dummy load. Problem is particularly acute on 40M but
> present on 80 thru 17M as far as I?ve checked. Depending on the antenna, I
> can get only 20 to about 50W out before there?s a buzz on the signal, and
> increasing power beyond that makes the display blink on and off rapidly and
> irregularly.
>
> I find nothing loose internally, I removed and reseated the connectors on
> the pot control boards thinking there might be a drive pot issue. I?ve
> relocated all antenna lead-ins and checked the tightness of all
> connections. Put the keying lead a number of turns on a toroid (T-240-43,
> which works great for TVI), got choke baluns on antenna lead-ins.
>
> Any good ideas out there, anyone with a similar problem?
>
> Thanks
>
> Howie WB2AWQ/7
> ______________________________________________________________
> Kenwood mailing list
> Home: http://mailman.qth.net/mailman/listinfo/kenwood
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Kenwood at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html




-- 
Clif Holland KA5IPF
www.avvid.com

From holden7471 at msn.com  Mon Nov 10 13:08:06 2014
From: holden7471 at msn.com (Howard Holden)
Date: Mon, 10 Nov 2014 10:08:06 -0800
Subject: [Kenwood] TS-440S issue (solved now)
In-Reply-To: <CAAuGyVCexu-Qyh39yDfq1wnNbm1ikh8GB7NeKMn3BXrKopAUaQ@mail.gmail.com>
References: <COL128-DS854A7EB0906A41E3D8082C4800@phx.gbl>
	<CAAuGyVCexu-Qyh39yDfq1wnNbm1ikh8GB7NeKMn3BXrKopAUaQ@mail.gmail.com>
Message-ID: <COL128-DS162BFB4CF895C0542ED74AC4800@phx.gbl>

Thanks to all who replied.

Ed (didn?t see a call or last name) was correct, it was a power supply problem, voltage sagging down to 10.5 under load (at the supply, so it?s not a bad cable), where the digital stuff didn?t want to work very well. A substitute supply cleared things up for now. The Kenwood supply is suspiciously low even under no load at just 12.6V, gonna look at the rectifier bridge and the pass transistors next.

73, Howie WB2AWQ

From: Clif 
Sent: Monday, November 10, 2014 5:40 AM
To: Howard Holden 
Cc: kenwood 
Subject: Re: [Kenwood] TS-440S issue

Check the RX BPF diodes on the RF Unit for leakage. Common problem. Usually D6.


On Sun, Nov 9, 2014 at 7:14 PM, Howard Holden <holden7471 at msn.com> wrote:

  Got a TS-440S which has suddenly acted up on transmit ? not the dot problem. This is a later issue radio.

  Seems like I?m getting RF feedback into the rig, regardless of which antenna I use, even a dummy load. Problem is particularly acute on 40M but present on 80 thru 17M as far as I?ve checked. Depending on the antenna, I can get only 20 to about 50W out before there?s a buzz on the signal, and increasing power beyond that makes the display blink on and off rapidly and irregularly.

  I find nothing loose internally, I removed and reseated the connectors on the pot control boards thinking there might be a drive pot issue. I?ve relocated all antenna lead-ins and checked the tightness of all connections. Put the keying lead a number of turns on a toroid (T-240-43, which works great for TVI), got choke baluns on antenna lead-ins.

  Any good ideas out there, anyone with a similar problem?

  Thanks

  Howie WB2AWQ/7
  ______________________________________________________________
  Kenwood mailing list
  Home: http://mailman.qth.net/mailman/listinfo/kenwood
  Help: http://mailman.qth.net/mmfaq.htm
  Post: mailto:Kenwood at mailman.qth.net

  This list hosted by: http://www.qsl.net
  Please help support this email list: http://www.qsl.net/donate.html



-- 

Clif Holland KA5IPF
www.avvid.com

From mghutchins at xtra.co.nz  Thu Nov 13 14:02:51 2014
From: mghutchins at xtra.co.nz (Mike)
Date: Fri, 14 Nov 2014 08:02:51 +1300
Subject: [Kenwood] Looking for info.....
Message-ID: <5465005B.4070606@xtra.co.nz>

Hi.
Can any Kenwood expert out there tell me the inductance value of the 
VCO(L) Coil L54 in the Kenwood TS930. (Kenwood Part # L32-0651-05.

I have one of these which is o/c & I cannot find a Kenwood spare.

Almost impossible to open mine, as it is one of the components which was 
'sealed' in the rubberised gunge that Kanwood used 'back then'.

Any and all help appreciated!

73 de Mike, zl1mh.

From lpage at conwaycorp.net  Mon Nov 17 19:32:47 2014
From: lpage at conwaycorp.net (Larry Page)
Date: Mon, 17 Nov 2014 18:32:47 -0600
Subject: [Kenwood] Kenwood TS-590S Setup with Ham Radio Deluxe
Message-ID: <CA11621D97EB4440B4AC0818C4C0BCA5@MakiPC>

Looking for Info (Web Link) on how  to setup Kenwood TS-590S with Ham Radio Deluxe 6.2. Thanks!

Larry K5DNA

From pa2a at xs4all.nl  Tue Nov 18 00:30:45 2014
From: pa2a at xs4all.nl (Steef PA2A)
Date: Tue, 18 Nov 2014 06:30:45 +0100
Subject: [Kenwood] Kenwood TS-590S Setup with Ham Radio Deluxe
References: <CA11621D97EB4440B4AC0818C4C0BCA5@MakiPC>
Message-ID: <0DE07BCF15824C9DBD2B94D3F9D0506B@DELL8600>

http://homepage.ntlworld.com/wadei/HOWTO_TS-590S_digital_and_dv_v1.8.pdf

73s Steef PA2A

----- Original Message ----- 
From: "Larry Page" <lpage at conwaycorp.net>
To: <Kenwood at mailman.qth.net>
Sent: Tuesday, November 18, 2014 1:32 AM
Subject: [Kenwood] Kenwood TS-590S Setup with Ham Radio Deluxe


> Looking for Info (Web Link) on how  to setup Kenwood TS-590S with Ham 
> Radio Deluxe 6.2. Thanks!
>
> Larry K5DNA
> ______________________________________________________________
> Kenwood mailing list
> Home: http://mailman.qth.net/mailman/listinfo/kenwood
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Kenwood at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 


From n2icarrl at gmail.com  Mon Nov 24 10:58:02 2014
From: n2icarrl at gmail.com (Steve London)
Date: Mon, 24 Nov 2014 08:58:02 -0700
Subject: [Kenwood] For Sale - TS950SDX CP1-4 chip
Message-ID: <5473558A.5050604@arrl.net>

I have one brand-new, TS-950SDX resistor pack chip (used as CP1-CP4). 
Rolm #78LJ472. This was a custom chip for the 950SDX, and is now 
unobtainium from Kenwood Parts.

$50 .

73,
Steve, N2IC

From ziv at radion.co.il  Wed Nov 26 09:19:44 2014
From: ziv at radion.co.il (Ziv Amit)
Date: Wed, 26 Nov 2014 14:19:44 +0000
Subject: [Kenwood] TM-G707
Message-ID: <4FA8FFA41020A849B1162E001B48ED7F5BF843B9@radionmail>

Hi

Got this radio for several years. Lately it is dropping the power on all power modes. H/M/L. something no power go out sometimes only low (mid & high) will TX power for half a minute.
VSWR is ok and power cords are also fine..

Who will be the best repair shop in the US to send the rig..

Thanks
Ziv 4Z4OQ

From m3wnz031148 at gmail.com  Sat Nov 29 05:35:50 2014
From: m3wnz031148 at gmail.com (Jim Strawbridge)
Date: Sat, 29 Nov 2014 10:35:50 +0000
Subject: [Kenwood] Ts530se. Spares
Message-ID: <CACKtBbgfQXn4mUP6oc+WX2+DfXxNHfr=om1qTev9puEUWBjNHA@mail.gmail.com>

Hi all..looking for ts520se IF board. Mode switch. Agc paddle switch. Two
2sk19gr and two 3sk73gr.  Prefere uk. Because of postage but will consider
outside uk..or if the group knows of anywhere that would hold these spares
or even a full ts520se for spares or repair ...point me in the right
direction I would be greatfull..thank in antisipation.. Jim