[Icom] PS-35 Tech Info Needed

Larry [email protected]
Sun, 20 Jul 2003 21:07:29 -0700


My 765 went dead & I found that weird resistor to be the problem. It looks=
=20
like 1/16" x 3/16" x 1" of copper but took a lot of tearing apart to find=20
it. I then soldered both ends - being careful not to solder beyond the=20
small holes drilled on each end. This brought the rig back to life & hasn't=
=20
given me problems since.

73 - Larry W=D8NFU
[email protected]

At 05:28 PM 7/20/2003 -0400, you wrote:

>Under eveything you will find a resistor that looks like a small strip of
>copper.
>Resolder this and bet it works.
>Common problem with that power supply. Did the same to mine.
>
>Raymond H. McClure - W8CNL
>5 McKenzie Circle
>North Augusta, S.C.
>29841-4319
>
>
>----- Original Message -----
>From: "Frank N. Haas" <[email protected]>
>To: <[email protected]>
>Sent: Sunday, July 20, 2003 5:19 PM
>Subject: [Icom] PS-35 Tech Info Needed
>
>
> >
> > The Internal Power Supply in my ICOM IC-751A, the PS-35 has quit
>operating.
> > The fuses are not blown. It just doesn't start anymore.
> >
> > Physical inspection revealed an open solder connection between to
> > odd-looking transformer devices. Repairing that did not correct the
>trouble.
> >
> > I'm told that the usual problem with these switching power supplies is
> > failed capacitors. I don't know as I don't have much experience with
> > switching power supplies.
> >
> > I have the schematic that came with the unit but I'm not familiar with=
 the
> > functioning of this type of unit.
> >
> > Is there a source for a description of the circuitry or perhaps a=
 service
> > manual for the PS-35??
> >
> > If not, are there any recommendations on where I might get this unit
>serviced??
> >
> > Many thanks to all.
> >
> > Frank N. Haas KB4T
> > Florida
> >
> >
> > ----
> > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > Icom Users Net: Sundays, 1700Z, 14.315 MHz
> > Icom FAQ: http://www.qsl.net/icom/
> >
>
>
>----
>Your Moderator: Dick Flanagan W6OLD, [email protected]
>Icom Users Net: Sundays, 1700Z, 14.315 MHz
>Icom FAQ: http://www.qsl.net/icom/