FC-700 tuner fault

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FC-700 tuner fault

Postby VK4NWH » Fri May 07, 2010 8:43 pm

Hi All, i bought a FC-700 HF tuner and works fine except for 1 fault. The fault is when you tune to check SWR you tune forward power the press the FWD-REF button to get the SWR reading and there is nothing, adjust the SWR SET full and nothing. There is no reading at all in REF setting. Is there something common that fails in these tuners? Any ideas what maybe the problem? I thought maybe the 1ss16 diodes may have failed but they seem to test ok. Any ideas or try replacing the 1ss16 barrier diodes anyway or maybe faulty FWD-REF switch? Cheers Wayne VK4NWH. 73s.
VK4NWH
 
Posts: 4
Joined: Sat Jan 07, 2006 10:55 pm

Re: FC-700 tuner fault

Postby VK4NWH » Sat Jul 09, 2011 10:08 pm

Fixed. replaced barrier diodes all good. hopefully an idea for anyone else with similer faults. Cheers.
VK4NWH
 
Posts: 4
Joined: Sat Jan 07, 2006 10:55 pm


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