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Good Morning All....
I have a weird one on the bench, when I have had IC7000's with no output on any band it has always been an input/output feed or driver board issue.
The unit I am working on has RF into the driver board and DC Bias, Supply rail on the output side but almost no RF out so i thought, driver board dead, easy fix......but no....
I removed the board and it looks like new, the board tests ok on a component tester, Per Icom's advice I have reset the CPU.
My next step is to replace the driver board in case something funky is going on with it, what do the Guru's here think of a diagnostic step may have missed.
Thanks, any help is always appreciated.

Regards - Tony Eagling Vk7YBG

Thanks for that, I did look at Peters videos but may have missed one.

Regards - Tony Eagling Vk7YBG

Shall do, Thanks Pasquale :-)

Regards - Tony Eagling Vk7YBG

Did I miss the signal levels measured with an O'scope?
Signal tracing with the 'scope should let you see which stages have gain and where it stops.

Hi JD....
Signal levels traced with a test set's spectrum analyser, all looks good until it hits the driver board, good level in, next to nothing out....

Regards - Tony Eagling Vk7YBG

Fault Resolved.....
Ok, I traced the missing amplification between the generated signal and the driver to bad bias on Q101 in the pre-driver stage, Q102 was behaving normally, Q101 was attenuating, sometimes a lot, sometimes it even amplified a bit.
After a lit of poking, prodding and track tracing I found the PTT 8V used to bias the pre-drivers was going astray, I then found the track went dead at a passthrough on the board and measured anywhere between 2K and 10K, so I bridged the 2 tracks with a small link wire and it is achieving full power again...
I dropped a bit of UV glue over the link and reassembled the radio, put it through it's paces and all seems tests ok
Hopefully this helps someone if they encounter the same fault :-)

Regards - Tony Eagling Vk7YBG

Great job, Tony!
I think that measuring the signal path is really the only way to really repair almost anything.
I have found that sometimes these radios do have bad connections, from the ribbon cables to the feedthroughs etc.
A good 'scope and service manual are pretty much necessary tools. Well at least in the receive circuits.
Thanks for the update.
JD
KE4MD