No default password but if protected the password is always 4 characters and can be reset by unplugging the sign power and plugging it back in with remote ESC key held down during both steps.
Tru-Color II
version 6
Remote Control
(none)
(none)
No default password but if protected the password is always 4 characters and can be reset by unplugging the sign power and plugging it back in with remote ESC key held down during both steps.
Tru-Color XP
version 8
Remote Control
(none)
(none)
No default password but if protected the password is always 4 characters and can be reset by unplugging the sign power and plugging it back in with remote ESC key held down during both steps.