[ICOM] Need Help w/PW-1 Problem

[htankin at comcast.net]

Tony,
I have a PW1..about 4 yrs old.  Mine goes into fault protect every once in a while, but ususally due to pilot error.  One thing you may want to check is whether the ALC is properly set.  Yes, I know you may have done this before..However, I too have adjusted the PW1's ALC setting for proper range only some month later to find that it is off slightly enough to put the amp into fault protect.  Easy enough to check out.

Harry WE1X

-------------- Original message -------------- 

> I have an early serial number, 1138, PW-1. The amp has worked fine up until 
> now. This evening I started to get an "Amp/Protect" fault on every band - 
> 160 thru 6 meters. I have connected the amp to a dummy load, done a CPU 
> reset and a reinitialization - all to no avail. 
> 
> I drive the amp with a 756 PROII and have been using this particular 
> combination for several years. If I reduce the drive to minimum (RF Power 
> control fully CCW), the amp keys and does not fault but as soon as I begin 
> to increase the drive, it kicks out and the Amp Protect led turns from 
> green to red. The 45V HV line to the PA stages is fine. I would really 
> appreciate any thoughts or suggestions. Thanks, Tony N2SS 
> 
> 
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