On Sun, 24 Feb 2013, Dave McGuire wrote:
   Maybe reverse-engineer the oscillator wrapped around
that 24MHz
 crystal, then see where it goes.  Compare that with the pinout of the
 8048...if it goes to pins 2 or 3, that further suggests that Mr. 4430030
 may be an 8048. 
According to my list, the 8048 has a different number:
6833161         8048            MICROPROCESSOR
Christian