> Steve,
> I did unplug the DIN connector. The rig is still stuck in the xmit mode.
> I was planning on resetting the microprocessor. But if there was some
> diagnostic info that would be lost by doing so, i never wanted to lose it
> for
> lack of the knowledge. So i decided not to reset it.
>
> The 7-pin DIN connector pin configuration was something like this.
>
> The pin numbers are not correct, but i want to give an idea of what the
> diagram looked like.( i don't have the manual with me right now).
>
> pins 1,2,3 for the TX,RX and centre poles of a relay
>
::This is where you'd connect the amp key line, using pins 1 & 3
(assuming your pin callouts here are correct, which they probably aren't).
> pin 4, +12V at 10mA on keydown.
> pin 5, ALC
> pin 6 - for foot switch or so.
>
::This is the pin (6) I thought possibly you had confused for an amp
key line.
> pin 7 - unused
>
> I was hoping to connect the TX and ground to the amp keying jack.
>
::I haven't worked with a TS-440S in several years (last owned one
in about 1990 or so), so I don't recall if one pin of the TX/RX/COM relay is
grounded internally or not. But if it is, then obviously, you must use the
correct polarity connections to the amp!
> I was hoping to connect the ALC and ground to the amp ALC jack.
>
::Seems reasonable. Since you're using a Kenwood rig with a Kenwood
amp, I would think the instructions for each would favor using the other,
and there should be no system incompatibilities. I've used a TS-440S to key
a variety of amplifiers, with no issues that I can recall.
::Anyone out there with a 440S who can help Krish?
-WB2WIK/6
> I used the above 7-pin connector because that was what was presented
> in the section on hooking up to a liner amp.
>
> thanks
> krish
> w4/vu2vku
>
> Steve Katz wrote:
>
> > Krish,
> >
> > Sounds like you may have confused the AMP KEY RELAY line with the REMOTE
> KEY
> > line (or whatever these are actually called on a TS440S -- names vary,
> but
> > I'm referring to functions).
> >
> > A remote key line is in parallel with the PTT and allows the use of a
> > footswitch or other external keying device to key the transmitter and
> place
> > it into the XMIT mode. An amp key line connects to an internal relay
> which
> > grounds this one contact when the rig is placed into XMIT from some
> other
> > source, such as the PTT switch or the MOX (manual transmit) button.
> >
> > If you've connected your amp to the remote key line, it won't key the
> amp
> > and may very well hang up the TS440 in the transmit mode. I doubt that
> > you've "fried" anything. You're not hearing any stations because the
> rig is
> > in the XMIT mode and cannot receive.
> >
> > I assume you've unplugged the DIN connector???????
> >
> > WB2WIK/6
> >
> > "Each success only buys an admission ticket to a more difficult
> problem." --
> > Henry Kissinger
> >
> > > -----Original Message-----
> > > From: krishna [SMTP:kkanakas@cisco.com]
> > > Sent: Tuesday, February 12, 2002 1:25 PM
> > > To: amps@contesting.com
> > > Subject: [AMPS] Kenwood TS-440 and TL-922A hook up help
> > >
> > >
> > > Hi all,
> > > First i would like to thank you all for helping me make a decision
> > > about
> > > the TL-922A.
> > >
> > > I am a happy camper. I bought the TL-922A for $675. It was amazingly
> > > clean for its age. I was even more surprised, since the seller
> > > appraised it to be of average condition. But it tuned out to be
> > > quite clean. I opened it up and no burns around the bandswitch.
> > > The tubes are clean. The previous owner was only driving it
> > > to about 600mA plate current. Looks like the amp was well taken care
> > > of before he moved to a nice ALPHA.
> > >
> > > I also got a pair of Eimac's as a backup( though not full emission).
> > > In short, i have a complete QRO package now. :)
> > >
> > >
> > > Now here is the sad part of the story.
> > >
> > > Not being able to suppress the urge to put things together,
> > > I started messing up with my perfectly working TS-440. My
> > > one and only radio.
> > >
> > > The users manual requires one to setup the jumper to enable the remote
> > > option for keying the linear. I did so.
> > >
> > > The manual has a diagram of the7-pin remote connector. I bought a
> 7-pin
> > > DIN
> > > connector and soldered wires to the terminals.
> > >
> > > I always had the rig connected to the dummy load. I would key and
> > > try to check for voltages on the terminals( hoping to see the relay
> > > keying
> > > voltages). Apparently i did not see any. I tried to hit the PTT on
> the
> > > stock microphone.
> > >
> > > Now, when i power on, i see the "ON AIR" red LED on. If i key down, i
> > > get full output to the dummy load. But i don't hear any stations. But
> > > if
> > > i change modes or manipulate the keypad, i hear the beeps. I also
> don't
> > > see the 'S' meter move. I checked and double checked the usual murphy
> > > steps before shooting out this email. May be i fried the front end :(
> > >
> > > Before i started mucking with it, i was able to hear stations at about
> > > s2/3 via the dummy load on the MFJ-949E. :)
> > >
> > > Anyone got any tip for me .
> > > 1) I need to make an interface cable to hook up the amp. ??
> > > 2) Any clues as to what could have gone wrong with the TS-440( a stuck
> > > relay perhaps).??
> > >
> > > Looks like its time to drive down south to the Kenwood service
> center.
> > > :(
> > >
> > > I have been depressed all afternoon.
> > >
> > > Once again, Thank you all.
> > >
> > > 73's
> > > krish
> > > w4/vu2vku
> > >
> > >
> > >
> > >
> > >
> > > --
> > > FAQ on WWW: http://www.contesting.com/FAQ/amps
> > > Submissions: amps@contesting.com
> > > Administrative requests: amps-REQUEST@contesting.com
> > > Problems: owner-amps@contesting.com
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