KAM.22

From: G4YFP@GB7RMS.#34.GBR.EU

Hi all Kam and KPC owners, Your TNC  has crashed and you are now faced
with the task of removing those  poxy  little screws which get tighter
every time you touch  them,  your  getting  hot  under  the collar and
heaven help anybody who calls you  up  on the radio. Well chaps, sorry
and ladies I have the  answer.  Fit   a  small micro switch, they come
with three pins and sometimes  a  slide  bar.  Remove the PCB from the
case and attach with double sided tape,  a small  micro switch of your
choice to the middle and back of the D25  RS232  socket; access to the
switch is obtained by a small hole drilled though  the back panel just
above the D25 socket. The slide  bar  type micro  is best as alignment
will not be so  critical  when  fitting,  or,   by   pushing  a  small
object though the hole in the back cover to use it. Wiring, well chaps
thats easy for you to work out; but basically what we  have  is on the
tnc board a jumper with three pins  on  it and a  small shorting block
on two. Preforming a hard reset is done by removing  the  jumper  from
say pins 2 and 3 and placing it  on pins 1 and 2  then  switching  the
tnc on then off again and  replacing  the  jumper back to pins  2  and
3. So this is where the micro switch comes in, it too has 3 pins on it
one common  and  one  makeand  one  break,  the  rest  is  up  to your
imagination. 73 de Alan G4YFP@ GB7RMS..