[ICOM] IC-765 Power Supply

[Bob Beatty]

My IC-765 just turned off one day and I assume it was a failure of the
internal power supply.  I see several mentions in the KD4LYH "IC-765
Issues" thread that imply the IC-765 can be operated from an external power
supply.  Is this right?  Where do I hook the external supply?  I see what
appears to be a power  connector in the left rear of the box after removing
the cover.  If this salvages the rig, I will be most appreciative and will
then look into Gary's fix of the shunt inside the internal supply as a
possible cause of the thing shutting down.

Please be gentle; I am non-techinical.

Many thanks and 73,
Bob W4VQ


At 10:53 AM 8/3/2009 -0700, you wrote:
>Jeff,
>
>The problem usually is the current shunt has cracked solder joints 
>within the 765 internal power supply if the 765 works ok at low power 
>but fails under full power
>Reading your message again I see it must be ok when using an external 
>power supply.
>Do you get 100 watts out on RTTY when using the external power supply?
>
>Repair of the current shunt solder joints is not hard, just get your 
>electric screw driver warmed up. A nice 25 watt soldering iron, some 
>decent size of solder wick or a desoldering tool, maybe some liquid 
>solder flux. I can write up a basic procedure if you need me to.
>You will likely find that doing a google search too. This looks to be 
>nicely done http://www.k4ro.net/tcg/misc/Icom-765-1.02.pdf
>Look up repair of an Icom PS-35 power supply its the same supply within 
>the IC-765 except for the case has more cooling fins on the 765 supply.
>
>Gary K8IZ
>