Swing Kit ~ NPC Mod for Galaxy 99V2 ??

[Wire Weasel]

Hi guys, tried google. Does anyone know if there's a typical Swing Kit mod for the 99V2? ….. the simple one where you pull a resistor leg up and add a diode to it ?

Thanks !!!

 

[ExitThirteen]

I think the 99v2 is close to the original 99V, this swing mod works well, but you have to adjust the AMC to a sweet spot for it to work correctly without clipping the negative peaks. This is an actual NPC mod.

Attach a 100 ohm resistor and a 1N914/1N4148 switching diode as shown across C189. C189 is located just left of TR50 on the main PCB. The pic below will provide you reference.

Let us know how you get on if the PCB is about the same as the original 99V.

~Cheers~

 

[ExitThirteen]

Oh, and make sure all the modulation limiters are intact for this mod, this mod will not work correctly without a functioning AMC circuit.


~Cheers~

 

[222DBFL]

No clippy clippy round here!! Keep that AMC intact!! WOID!!!

 

[Wire Weasel]

Hey Exit13 …. no actually the 99V2 is VERY different from the original. The V2 uses the same board as found in the 98VHP

 

[ExitThirteen]

98VHP? Ok, let me have a look at that. I'll get back to you on it.


~Cheers~

 

[ExitThirteen]

Lift up one side of R264, the side that is towards the right. (Away from VR14) Insert a 1N914/1N4148 diode in between the resistor and the hole. Banded side of the diode goes into the hole you unsoldered the resistor from, non-banded side solders to the resistor. If this mod doesn't work, then reverse the polarity of the diode.

The other method that may work is to solder the 100 ohm resistor/diode combo from the first pic across C233, same direction as the above pic. This mod is not verified tho, so do so at your own risk.

Hope this helps.


~Cheers~

 

[Wire Weasel]

Thanks buddy !!!

 

[phantom309]

How can the 99v2 have the same board as the 98vhp when the 99 has FM and the 98 does not?

 

[9C1Driver]

How can the 99v2 have the same board as the 98vhp when the 99 has FM and the 98 does not?

In that example the slots on the board for FM will be left empty and un-used.

 

[phantom309]

Ahhhh i see said the blind man.