6300 PA fault. How to set BIAS on new transistors?

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Hi all,

I am working on a faulty 6300. It has a damaged power amplifier. One RD100HHF1 is shorted. Replacing it is not a big deal but, how should I setup the BIAS?. I guess it is similar to other rigs I have worked on, which use a Service Menu adjustment to do it, one for each PA final, but have no idea regarding how to do it on a 6300.

Thanks for your help!

73 Jose EB5AGV
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Posted 2 years ago

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Tim - W4TME, Customer Experience Manager

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This is not an operation that can be done in the field by a user.  Calibrating a FLEX-6000 requires specialized firmware and a test stand that is only available at our authorized service centers.  Since you are in Spain, please contact our Service Center in Germany.

Norbert Wrede
EU Service Center
Habyer Str. 22
24361 Gross Wittensee

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Hello Tim,

Thanks for your answer.

Respectfully, I am not an end-user, but an engineer and a professional repairer of, I thought until today, any brand of amateur radio equipment. I have worked on close to 3000 units so far and this is the first time I am unable to find the necessary information to perform this kind of task.

All major manufacturers provide a Technical Supplement or a Service Manual to work on this kind of things. Of course, not everyone should be able to do this work. But for a pro, it should be possible. IMHO.

I am deeply frustrated with this notice. And, for sure, my customer will be also.

73 Jose EB5AGV
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Bill -VA3WTB

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Tim is not questioning your ability. You must have the specialized firmware and service stand in order to do it. With out those, you can't do it.

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