Hi all
I recently acquired a FH1500 and it performs as expected, but have come across an issue. When I adjust the Mid dial on the top of the FH and turn left towards the 9 oclock position, the amp cuts out completely, and the message "Thermal Shutdown" scrolls across the LCD.
Sometimes, after a few seconds, the amp comes back to life, sometimes it requires a reboot. It only happens on the Mid dial (so far as I can tell), and at any volume, after any time. So I'm fairly sure it is not actually a heat issue, it's a glitch.
I've tried the downgrading the firmware to 1.0 and then back up to 1.3. No change.
Anyone seen this before? Any fixes? Is it serious?