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
pin 4, +12V at 10mA on keydown.
pin 5, ALC
pin 6 - for foot switch or so.
pin 7 - unused
I was hoping to connect the TX and ground to the amp keying jack.
I was hoping to connect the ALC and ground to the amp ALC jack.
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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