触发器SQL语句报错求解决

CREATE TRIGGER Insert_TV_PRICE
BEFORE INSERT ON SALE FOR EACH ROW

BEGIN

IF (new.GNAME = '电视机') AND (new.PRICE < 2000) THEN
new.PRICE : = 2000;
END IF；
END;

报错信息为
1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.PRICE : = 2000;
END IF；
END' at line 5

求解哪里出现了问题

将new.PRICE : = 2000; 改成set new.PRICE : = 2000;

new 是一个表吗，如果是一个表可以这样赋值，不是要用update吗

应该是赋值出现了问题