Washinton/cobra clarifier hookup help

[Xitami]

Just got a Sbe land command lcbs-8, some turkey has tried a clarifer mod without finishing it, What i need is the location on the board where the clarifier wires go, and where on the clarifier pot they go also, the wires are missing, its the common PC-385 board used in Cobra 140gtl and Washingtons using the 8719 pll, need help here guys.

 

[ExitThirteen]

Center wiper on the clarifier pot goes to R187, one side of the clarifier pot goes to R415, which is a 3.3k ohm resistor to ground. The other side of the clarifier pot ties in with the NB, which ties to R191, a 390 ohm resistor. Make sure D36 is re-installed.

Hope this helps.


~Cheers~

 

[Xitami]

Center wiper on the clarifier pot goes to R187, one side of the clarifier pot goes to R415, which is a 3.3k ohm resistor to ground. The other side of the clarifier pot ties in with the NB, which ties to R191, a 390 ohm resistor. Make sure D36 is re-installed.

Hope this helps.


~Cheers~

Yes it help heaps thanks, not having a parts layout, where do i look?

 

[ExitThirteen]

R187 is located in the front and right center of the board, near the front edge. R415 is probably going to be located on the little board that has the 3 push button switches, such as the NB/ANL, S/RF/Mod, and CB/PA. R191 is located in the far right side of the board, close to the MB3756 voltage regulator.


~Cheers~

 

[Xitami]

R187 is located in the front and right center of the board, near the front edge. R415 is probably going to be located on the little board that has the 3 push button switches, such as the NB/ANL, S/RF/Mod, and CB/PA. R191 is located in the far right side of the board, close to the MB3756 voltage regulator.


~Cheers~

Great info, just having problems finding R415, can i just a wire to ground anywhere through a 3.3k ohm res???

 

[ExitThirteen]

Yep, you can do that, not problem at all. Both the right and left wipers (or lugs) of the clarifier control go to the board that has the 3 push buttons on it, actually, but for all intents and purposes, you can do what you asked about... running a wire thru a 3.3k ohm resistor to ground.


(Edit) Just realized this is for a LCBS-8, so you won't have the push button switches set up the same way. My apologies. Just run the wire thru a 3.3k ohm resistor to ground and you're good.


~Cheers~