What screen color does your Turbografx/PCe/Super/Duo/etc display with no card inserted?
There was a similar thread some time back on NintendoAge regarding NES systems. Hardware registers tend to initialize to a random state unless instructions are given to clear this info. Due to slight variances in fabrication, different chips even out of the same batch tend to initialize differently. The GPU often displays a random color across the entire screen, typically unique to the individual console.
My US Turbografx displays a pale cream yellow color somewhat in between apricot and goldenrod, more towards apricot. What colors do other's consoles display and are they consistent between models or random?