Modifications
Galaxy Radio Mods

Galaxy 33HML

Channel Expansion

Remove the top cover.
Remove the red jumper wire at the front edge of the pc board. (On some units, it is orange.)
One end of the wire is connected to two solder pads that are soldered together.
Unsolder these two from each other making sure that each pin is re-soldered individually.
The radio will now work on the C. B. band.

Galaxy 55V

Channel Expansion

Remove the top cover.
Remove the red jumper wire at the front edge of the pc board. (On some units, it is orange.)
One end of the wire is connected to two solder pads that are soldered together.
Unsolder these two from each other making sure that each pin is re-soldered individually.
The radio will now work on the C. B. band.

Tweaks

Audio Limiter - TR53
AM Power - VR13

Galaxy 66V

Channel Expansion Version 1

1) Open up your radio.
2) Find the small circuit board on the left of the radio.
3) Cut the green wire and tape it off.
4) There is an unplugged connector by this board..plug it in.
5) Reconnect the plug to the board.
6) That's it. You now have 8 bands, Channels 25.165-28.755.

Channel Expansion Version 2

Remove bottom cover.
On the left side of the radio (Front panel facing you) look for a red wire on the small pc board. (foil side up)
Unsolder this wire at both ends and dispose of it.
Be certain that the solder pads, from which the wire was removed, are soldered correctly.
Remove the screw holding the board onto the chassis.
On the top side of this board (component side-which was down) there is a row of pins with nothing plugged into it.
There will be a matching plug close by that is lying loose.
Plug it onto the row of pins and replace the screw holding the board to the chassis.
The radio will now work on the cb band.

Tweaks

Audio Limiter - TR53
AM Power - VR13

Galaxy 73HML

Channel Expansion

Remove bottom cover.
On the left side of the radio (Front panel facing you) there will be a frequency counter (a tin-plated metal box).
Remove the screw that holds this box to the chassis and move the frequency counter to one side.
Located on the channel selector board you will see a small red jumper wire.
Remove it, being sure not to over-heat the surface mount components.
Lying nearby is a plug that is not plugged into anything.
Plug it in to the empty socket on the channel selector board.
Also lying nearby is a yellow wire and a brown wire, each cut into separate pieces and each covered with heat shrink on their ends.
Solder the two yellow wires together and the two brown wires together.
Use black electrical tape first to cover them and then cover the taped connections with heat shrink tubing.
Re-mount the frequency counter to the chassis and the unit will now function on the cb band.

Galaxy 77HML

Channel Expansion
Remove the top cover.
Remove the red jumper wire at the front edge of the pc board. (On some units, it is orange.)
One end of the wire is connected to two solder pads that are soldered together.
Unsolder these two from each other making sure that each pin is re-soldered individually.
The radio will now work on the C. B. band.

Galaxy DX77HML

Channel Expansion

1.Remove the top of the case (The Part that does not have the speaker on it) and locate the wire (is usually green or red about 2 inches long) toward the front of the radio. 2. Unsolder it from the ground and the two pins. After you have removed this wire make sure there is no solder connecting the two pins together. 3. Find the connector toward the front right of the radio labeled 10K and reconnect this plug to the connector on theû circuit board. (NOTE: This plug may already be attached when you get your radio.) 4. All thats left to do is put the case back on and your done.

Tweaks

Audio Limiter - TR53
AM Power - VR14

Galaxy DX 2517

(EPT690010Z PCB)

Channel Expansion
Remove the top cover.Just above the PLL you will find a jumper block.The pins go like this:123
456Put the jumper on pins 2-3

Galaxy DX 2527

Channel Expansion Version 1

Remove the top cover.Just above the PLL you will find a jumper block.There is only one jumper on this block..Move the jumper from bottom left position to top right position.I have been informed by a visitor to my site that it is possible to get coverage from 26.000 Mhz - 31.999 Mhz buy adding another jumper instead of moving it.Just add the jumper between pins 2 and 3, leave the other jumper on pins 4 and 5.

Channel Expansion Version 2

Remove the top cover.
Near the front of the radio located behind the display will be a black jumper block next to two pins that have nothing on them.
Another black jumper block comes with the radio and will be in the accessories package.
Slide it over the 2 pins that are not covered and the unit will operate from 26.000 mhz to 32.000 mhz

Adjustments

VR 1....AM/FM S-Meter

VR 2....SSB S-Meter.

VR 3....SSB Squelch Range

VR 4....AM/FM Squelch Range.

VR 7....SSB Carrier Balance

VR 8....RF Meter 7.

VR11...Driver Bias.

VR12...SSB ALC

VR13...Hi Power.

VR14...AMC

VR15...AM Low Power.

VR16...SSB Low Power.

VC 1....10.240

VC 2....10.240

If you have more precise information on any of these radio's Email Me !!!

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