What should I do to attach RF IN at C210/JP91 junction?

[jimbowilly]

Hi,
I am installing a RFX75 into a Galaxy DX959. CBTricks instructs to solder the RF IN coax center conductor to junction of C210 and JP91.
C210 and JP91 do not have a junction point.
Am I to make a jumper between the two components?
Please help.
Jimbowilly

 

[Robb]

Link to it?

 

[Robb]

CBTricks instructs to solder the RF IN coax center conductor to junction of C210 and JP91.
C210 and JP91 do not have a junction point.

On the schematic http://www.cbtricks.com/radios/galaxy/dx959/graphics/dx959_sch.pdf , C210 has a choke coil on either side of it. One coil is L33 and the other is L35. Can you see the print on the board at this location that shows where JP90 belongs? It should be marked.

The only way that it would have no jumper is if someone removed it; or the radio you have uses the MOSFET final. Did you check the numbers on the final?

Found the link for the bipolar version of the RFX-75 install:
http://www.cbtricks.com/miscellaneo...s/rfx75_install_guide_galaxy_959_etc_1969.pdf

EDIT:
After looking at the MOSFET install version, it says the same thing about the install point:
http://www.cbtricks.com/miscellaneo...aphics/rfx75_install_guide_galaxy_959_etc.pdf

 

[unit_399]

Jimbo, Jimbo, Jimbo -

What you should do is to reread the instructions. They say to connect the rf input to the junction of C210 and JP90 not JP91.

- 399

 

[jimbowilly]

My instructions are incorrect.

Good Morning,

The information I have. Indicates the junction of C210 and JP91.
I do have the mosfet version. So JP91 is not included.
Thanks for the help Rob.

Jimbowilly

 

[jimbowilly]

I double checked the instructions.

Ok.
I re-read the instructions for the RFX75 w/mosfet install.
My DX959 came with IRF520.
The jumper JP91 has been removed by manufacturer and, does not make a junction with C210.
JP90 is in place.
I soldered in a at the junction of C210 and JP90.
At this point I have only the receive. Transmit is not working at all.
Jimbowilly

 

[unit_399]

My DX959 came with IRF520.
Transmit is not working at all.
Jimbowilly

Sorry, Jimbo, I thought you had the bipolar version. The written instructions for the hookup are incorrect. The diagram at the bottom of the instructions show the rf input connected to the C210/JP90 point. Since it receives, your hookup is probably correct. Check to make sure that you have 8Vdc to the blue wire connected to JP97 when the radio is in transmit.

- 399