Forgotten password i set up a password for my grundig tv but ive forgotten it and now my tvs locked!! please help

Your tv is switched on and locked , blue screen and shows keys. A tv with activated child lock can only be unlocked after an 4-digit code is punched in.
Reset of child lock is as followed :
Determain chassisnumber type on type plate on the back of TV.
example: CUC xxxx ( xxxx = 4 digit number).

TV's CUC 6300, 6301 and 6310: Press cursors (blue arrows ) in sequence : Right, Left, Down , Up, followed by OK


TV's with chassis CUC 2003, 2005, 1805, 1825 t/m 1827, 1842, 1894, 1952, 1962, 1983, 1984, 1806, 1828, 1829, 1830, 1836, 1929, 2020, 2021, 2030, 2031, 2033, 2050, 2058, 2059:
Punch in universal code 7038 in. This code ends the child lock
TV's with Chassis CUC 1832, 1930, 1931:

Punch in universal code 7038580. This code ends the child lock Greetz and good luck, and PLS let me know if it works
Arni