Check the capacitors in the oscillator RF path. I've repaired several
IC-375A (220MHz) with similar issues. Capacitors in this series rig
appear to be reaching end-of-life and are becoming a high failure component.
Dave - K3SK
-----Original Message-----
From: VHFcontesting
<vhfcontesting-bounces+k3sk=buckwalter.co@contesting.com> On Behalf Of
mikflathead--- via VHFcontesting
Sent: Thursday, December 11, 2025 10:31 AM
To: VHF Contesting <vhfcontesting@contesting.com>
Subject: [VHFcontesting] Icom IC-471 repair question
I recently purchased a very nice condition 471A radio. Knowing it had a
problem and looking for a winter project. The problem is no USB or LSB. CW
and FM work fine. I have traced the issue to lack of voltage at the SSB
oscillator circuit. Has anyone had this issue with a 271 or 471 radio ?
Thanks Mike _______________________________________________
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