> John <[EMAIL PROTECTED]> wrote:
> Thanks for the response. I'd like to pick your brain
> on this.
Not too much... don't have many cells left after disco
and some 1970's through the early 1980's bad habits.
> But just to get me going I'd like to ask you the following
> I turned the unit on and get lights. I was not able to
> get any audio from it. The busy light came on when I
> adjusted the squelch.
You need the internal speaker jumper on the missing rear
panel molex plug.
> I was not able to key it up and measure the freq. ( I
> now have the pinout and will try to transmit tomorrow)
If you don't have a mic, better to key the tx using the
rear panel external ptt function/pins. Don't go playing
around with trying to key the tx through the mic jack
with jumpers.
> The molex on the back has no mating plug in it,
> according to your email it should have one to make
> it work or give out audio. Which pins do I jumper?
Can't tell you without looking at the manual on Monday.
> I took the top cover off and saw a flat 4 pin connector
> flush with the top of the front panel and to the left
> of center, what is it?
One of the programming ports for use with the kpt-50
programmer. If memory serves it's the ctcss/dcs program
port. I always remove the eeprom from under the hatch
(you have yet to open) and program the ctcss/dcs codes
by placing the eeprom directly into the kpt-50 programmer.
The kpt-50 has two leads.... one with the plug for the
above mentioned port and the other a mic plug that goes
in the front panel mic jack.
> What quick checks can I do?
Any amount made out to me...? :-)
TX can be done by jumpering the proper pins on the
rear molex connector (in the right order). The pins
are numbered and shown in the service manual.
If you have a uhf repeater the rx is probably 5Mhz
the other direction in the band. If you have a vhf
repeater at about 152 MHz, the receiver is probably
about 5 Mhz up the band at about 157 MHz. I just
did this today on a silly Tait Repeater someone
gave me. The tx was at 152.3xx MHz. I set the
signal generator up to 156MHz and started walking
the frequency up in 10KHz steps until I found the
receiver at 157.5xx If the receiver is working
you need only hear the audio.
> It looks like pin 8 on the molex is PTT, how is the
> pin numbered? What does the controller look like and
> where in the radio would it be located?
The repeater board is under the silver hatch on the
top of the actual rf/radio chassis. Remove the 457,000
small screws to pop the hood up.
> Would it be needed if an external ham controller
> was used like one from NHRC? If it has been removed
> would the unit still repeat?
You can use an external controller using some jumper
information previously posted in the group here. I
also have a copy of it in my files if you can't find
it easy enough.
> Thanks for your offer to help
> BTW I'm in Miami
> John
No problem John, Miami is a very nice place but I
don't do heat and gators very well.
skipp
ps: The rear panel molex connectors and required
pins are common to find... I also stock some of
the higher quality types (better pin plating) for
slightly more money if you can't find them local.
s.
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