using a chip-clip on PLL's
 

You know those chip clips that techs use on computer chips to test /
troubleshoot the chips?

Why not do the same thing to PLL's before actually wiring the final
connections when expanding channels?

It would work, use alligator clips or wire wrap the wires around the pins
that match the designated pins on the PLL chip and then use some switches to
test the switching of channels.

Try it out.

Better than wiring the whole thing up and making the wrong connection.

Would work fine, I guess, except for the pins that you have to sever from
the main board in order for the channel conversion to work... Which I
believe is a vast majority of them...


"sean" wrote in message
...
You know those chip clips that techs use on computer chips to test /
troubleshoot the chips?

Why not do the same thing to PLL's before actually wiring the final
connections when expanding channels?

It would work, use alligator clips or wire wrap the wires around the pins
that match the designated pins on the PLL chip and then use some switches
to
test the switching of channels.

Try it out.

Better than wiring the whole thing up and making the wrong connection.

It's illegal to transmit on CB radios outside the 40 regular channels

On Tue, 1 Feb 2005 21:28:25 -0500, "sean" wrote:

You know those chip clips that techs use on computer chips to test /
troubleshoot the chips?

Why not do the same thing to PLL's before actually wiring the final
connections when expanding channels?

It would work, use alligator clips or wire wrap the wires around the pins
that match the designated pins on the PLL chip and then use some switches to
test the switching of channels.

Try it out.

Better than wiring the whole thing up and making the wrong connection.


The problem with that approach is that some of the pins are hard wired
to ground or +5V and need to be "freed" or cut loose and the proper
pull-up resistor installed so that the pin can be switched. The
channel selector switch itself may "interfere" with your modification.
If, for example, the switch applies a hard +5V and you try to ground
it, you just shorted out the supply.

Depending on the make of radio, some of the pins may need to be cut
loose to fully change state. It's not as simple as just dropping a
chip clip on top of the PLL if you want full capability.

Dave
"Sandbagger"
http://home.ptd.net/~n3cvj

CB radios don't transmit outside the regular 40 channels. If a radio does
transmit outside the regular 40, then it's no longer (or never was) a CB
radio...

Goes to show what you know..

PH


"steveo crusher" wrote in message
oups.com...
It's illegal to transmit on CB radios outside the 40 regular channels

"FeMaster" FeMaster @ hotmail . com wrote:
CB radios don't transmit outside the regular 40 channels. If a radio
does transmit outside the regular 40, then it's no longer (or never was)
a CB radio...

Goes to show what you know..

PH

Don't listen to the fugly-felon(n8wwm). Look how hw installed his antenna.

http://img239.exs.cx/my.php?loc=img2...dogie047uw.jpg


N8WWM wrote in message
oups.com...
It's illegal to transmit on CB radios outside the 40 regular channels

On Tue, 1 Feb 2005 21:28:25 -0500, "sean" wrote
in :

You know those chip clips that techs use on computer chips to test /
troubleshoot the chips?

Why not do the same thing to PLL's before actually wiring the final
connections when expanding channels?

It would work, use alligator clips or wire wrap the wires around the pins
that match the designated pins on the PLL chip and then use some switches to
test the switching of channels.

Try it out.

Better than wiring the whole thing up and making the wrong connection.


It would be much better to build a jumper board, move the chip to the
jumper board, install a socket in the radio and plug the jumper board
into the socket. No traces need to be cut, and the board can be easily
removed and replaced with the chip.




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No way! I din't know that.


"steveo crusher" wrote in message
oups.com...
It's illegal to transmit on CB radios outside the 40 regular channels

[quote=Frank Gilliland;253441]On Tue, 1 Feb 2005 21:28:25 -0500, "sean" wrote
in :

You know those chip clips that techs use on computer chips to test /
troubleshoot the chips?

Why not do the same thing to PLL's before actually wiring the final
connections when expanding channels?

It would work, use alligator clips or wire wrap the wires around the pins
that match the designated pins on the PLL chip and then use some switches to
test the switching of channels.

Try it out.

Better than wiring the whole thing up and making the wrong connection.


It would be much better to build a jumper board, move the chip to the
jumper board, install a socket in the radio and plug the jumper board
into the socket. No traces need to be cut, and the board can be easily
removed and replaced with the chip.



'RIGHT ON', Frank!

Dennis #12