Hi,
sorry but i'm not able to alter the password.
When typing:
brconnect -user SYS/***** -f chpass -o SAPPS2DB -p *****
the following message occures:
BR0301E SQL error -28009 at location db_connect-2, SQL statement:
'CONNECT SYS/*********'
ORA-28009: connection as SYS should be as SYSDBA or SYSOPER
BR0310E Connect to database instance PS2 failed
(i hiding my password with **** - i'm not tryining **** as command 
)
Thanks for your Help!