[Icom] PS Question

Thu, 01 May 2003 20:59:09 -0600

Hi, Bill
In there, 0.1 Ohm big copper plate tend to lose good solder connection 
with heat and what not.
Give a good soldering job at both end of that resistor. Also 
electrolytic caps in the supply any
one has discolored or looks bulging?
Also the Molex connector pins(f and m) tend to get loose causing poor 
connection.
73,
Tony, VE6CGX

wjdiamond wrote:

>Hi Folks,
>
>Well, now I am working on the PS 35 switching power supply for the 761. It
>puts out 13.8 volts like it should but when a current draw of about 5 amps
>is reached, it starts tripping on and off.
>
>The current sense adjustment does not have any effect.  I made a power off
>resistance check on the diodes and transistors and they match the PS 740
>that I have.
>
>Any experts out there on the switching supplies like the PS 35??
>
>Thanks
>
>        William J. Diamond (Bill)
>        Rogers, Arkansas USA
>        [email protected]
>
>        Ham Radio Operator WR�T
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