We are talking about two different sets with the same problem.

I would normally agree that it is unlikely that they would be common
BUT if you search the archives you will see the on-off problem seems to
be very common to Mitsubish larger sets. This strongly suggests that
they used the same common circuits for the startup/power supply...I
would if I were the designer to keep production costs low across the
different lines.

Again, doesn anyone have a circuit schematic available?

TMT