Pro- 43 KeyPad replacement

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N9JCQ

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Hi all. I have an old Pro-43 and have two replacement keypads. I remember years ago, someone posting somewhere the step by step to replace the keypad. Does anyone recall how to do it? I don't believe there is any desoldering involved, at least I hope not.
Joe N9JCQ
 

slicerwizard

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No, I think you'll have to desolder the antenna jack connections.

From memory,

- remove antenna

- remove battey cover and battery pack

- remove 4 screws that hold rear case in place; remove rear case

- remove 6 silver screws that hold RF board in place

- desolder both antenna jack connections (signal and ground) from RF board (required to move RF board)

- move colored PLL / VCO control wires from side of metal RF block and run them over the metal block (needed to lift RF board)

- lift bottom end (end by battery area) of RF board to split black RF board - AF board connector

- shift bottom end of RF board sideways to access 2 silver screws that hold AF board to logic board; one screw is between power jacks, other is near the black connector you split; drag a magnet along your screwdriver a few times to magnetize it - it makes it far easier to remove and replace those 2 screws

- remove the RF board, AF board and top controls as one unit from logic board / front case

- remove the 5? black screws that hold the logic board in place

- you can now separate the logic board from the front case and remove the old keypad

- be careful with the LCD - there isn't much holding it in place; keep the LCD facing up

- lightly clean the keyboard contacts on the logic board before installing the new keypad; a pencil eraser should take off anything that might've taken up residence; remove any eraser residue


Reverse the steps to reassemble. When installing the rear case, make sure the black/white speaker wires and colored PLL/VCO control wires don't get pinched by the rear case; ensure all of the wires are tucked into the cutouts in the AF and RF boards
 
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