[ICOM] IC PS-35 Problem

Jaime Gomez cwdx.hk1n at gmail.com
Fri Jan 14 16:00:02 EST 2011


Thank you all who answered my request for help with my friend's PS35,
specially Terry, K3JT.
I disassembled IC1 (I thought it was more difficult) and found the neon
glass with a very small crack and all white inside.
I tried to replace it with a LED with no luck and not much time to
experiment a circuit more complex than a simple voltage divider connected
across R4. (The voltage and current for the LED are too critical in this
case). I decided to go Terry's way and replaced IC-1 with a 1K 1/4w
resistor. As soon as I heard the relay click after connecting it, I
thought...voilá....and I measured 13.6 volts output. I loaded it with a test
resistor and at 20 Amps it worked fine.
Now my friend is happy with his PS-35 back working fine.

P.S. I would not use it inside any of my radios because of the heath
generated....The external PS optioin is definitely much better.

73,

-- 
Jim, HK1N


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