[ICOM] ICOM 756PRO2

[Phil Krichbaum]

Steve,

     I can relate to this! I'd had a 756PROII that got wiped out when a 
spike came in the neutral side of the power line during lightening 
season and and wiped out a hard drive, TV set, answering machine, water 
well relay etc. It was on the Icom power supply I still use today on my 
756PROIII some 8 years later! There was nothing wrong with the Icom PS 
that came with the rig. When the 756PROII got wiped out it was not 
connected to an antenna but was connected to said Icom PS that was 
plugged in the AC mains.

     I ordered a 756PROIII but didn't put it in service right away after 
it arrived. A month or so later on a clear cold winter night I finally 
got it out of the box and hooked it up. In the next hour I had a couple 
of CW QSOs at 5w and  and one a 100w and all of a sudden there was no 
power out! The winter night sky was clear and there was no wind or 
blowing snow. Icom would not honor the warranty at first saying "I'd 
operated it out of warranty conditions" and finally agreed to fix it. 
 From that day forward I'd make sure the PROIII PS was disconnected from 
the AC mains anytime I left the house and no antenna was connected to it 
to the PROIII. It seems to me these rigs are poorly designed for front 
end protection and they do not do well in a multi transmitter contest 
situation even if the other rigs are at 100w!. The repair involved 
replacing some FETS in the tuner. The PROIII is no longer my main HF rig 
and I use another rig that is able to handle a multiop multi rig contest 
situation.

     Phil N0KE


On 2/27/2017 12:57 PM, Steve via Icom wrote:
>     About 4 months ago, I bought an ICOM 756Pro2 that looked in great condition.  Since purchasing this radio I have mainly used it for  dialing up the freqs & just listening on all the bands - no transmitting.   Recently I decided to check out the transmitter - hooked up the MFJ 969 Tuner to check out the tranny & antenna ..  dialed up the HF freqs - hit the Mic to transmit -- The 756Pro2 screen shows a real nice spike during transmission - the red TX light turns on --- indicating that I'm transmitting ..... BUT -- there is no needle activity on the Tuner .. Unable to check the output power as there is NO "Po" light on the 756Pro2 (however, when I click the same button to SWR, the green light comes on) ..
> Next step is to check the Tuner --  hooked the Tuner up to my VHF/UHF Tribander to check functionality ... it has needle movement on the Reflected Power but not on the Forward (most likely of low watts on Tribander) ...
> So, I'm appealing to all the ICOM 756Pro2  Techies out there for H E L P   73
> ----
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