ESD diode failure

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  • Updated 2 years ago
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Well I opened a help desk ticket today.  My flex 6500 has been spot on perfect for over a year.  Today during some antenna work I suddenly noticed that I saw no signals.

I spent a lot of time double checking everything as I suspected my tuner had a problem.  I could not get any RF out either for tuning.  

I was pretty sad and figured something had fried my 6500 but what!?  I mean I was working on the raw antenna which had a balun, coax, a tuner (HF auto) and an SPE amp between them.  I could not figure out what could have happened.

The only thing I remember is when I unplugged some cables from the back of the amp I remember feeling what might have been a static discharge.  Not large but there.  

In my work I really didn't pay any mind to the lack of signals until I reconnected everything and found I could not tune and there were virtually no signals on all bands.  There was some noise and that was about it.

As a last ditch effort I moved my coax feed from antenna 1 to antenna 2 on the back of the flex and made the change in software and everything came back to life.  I had RF power, good signals etc.

So Dudley things one of the ESD diodes gave up.  It is nice they are separate and that antenna 2 works.

Now the issue is that FRS is quoting 4 weeks to repair.  I have been using my flex almost every single day and night so being without it would be very hard.  

Has anyone else had recent repair?  Is the time really looking like 4 weeks?

I will send it back but I think I will wait a little so I can use it while I'm on vacation and pick a time soon when my work starts to ramp up.

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Mark WS7M

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Posted 2 years ago

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Tim - W4TME, Customer Experience Manager

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Official Response
This is a very busy time of the year for the Service department.  We have new products being readied for shipping and employee vacations and holidays to factor in.  And we are still down one employee in Service due to the unexpected passing of K5UHF.  So yes, there is a slight backlog in service at the moment. 4 weeks is a worst-case number if the repair is straightforward and the unit does not have to be returned to our contract manufacturer for service we are not able to do in-house.  I suspect that an ESD diode replacement would take less than the estimated time.