Hm. Hang on a sec.

Is the temperature warning something that can be configured differently between AC power mode and DC power mode?

Can the temperature warning be configured to shut down the player automatically when it busts a threshold?

If so I wonder if this is just flash RAM that's screwed up and has returned some noisy settings data at boot time. Up to and including messing up the setting for Dock Detection, thus making the player go into DC mode even when in Mark Lord's Home Dock. And then some of the DC settings are screwed up such as telling the player to shut down if the temp gets too high, but the temp number is wrong. And maybe even bad enough to have screwed up the EQ settings (or at least the selected EQ setting) so that there is a messed up four-way EQ configured, thus making it seem like there was no output from one of the four channels.