[ICOM] IC-765 on 220 VAC

[Gary Fiber]

Hi Tim,

Going from memory.......
Get the electric screwdriver warmed up.

Remove the power supply from the 765.
Remove the bottom cover, about 20 screws.
Take note of the transistors and insulators, remove the mounting 
screws from them and circuit board from the power supply case.
Look and you will see two jumpers that are marked 110 / 220. Move 
each jumper to 220 Volts, Requires soldering.
Under the Full Wave bridge there is a jumper that connects the AC 
inputs together, cut it. Try to leave enough so you can revert back 
to 110 Volts if desired.
While you have the board out inspect the current shunt resistor, 
about 1.5 inches long by 1/4 inch wide flat bar on the bottom of the 
circuit board.
If the solder joints are cracked or look bad, de solder, clean up 
area and reinstall the current shunt resistor. Do not solder past the 
holes in the resistor.
Reassemble the power supply, maybe using some new grease under the transistors.
Reinstall it into the rig
Change the plug on the end to a proper 220 Volt plug.

Praise the good job the electric screwdriver did :)

Enjoy.

I think mods.dk has this on it

Gary K8IZ

At 01:40 PM 6/28/2006, you wrote:
>Has anyone ever done this?
>I see some schematic notes in the service manual, but no step by 
>step procedure.
>Any help would be appreciated.
>Thanks and 73,
>Tim K3LR

Gary Fiber K8IZ
GROL PG-19-6691
Washington State Resident