Star Castle...Ahhh yes Star Castle.
Powers up fantastic. Picture perfect. After about 15 mins. the lines start to separate and slowly become ONLY vertical lines for what should be the actual game graphics.
Re-soldered EVERYTHING on the bottom of the pcb.
Changed the 4 output transistors on the heat sinks.
Changed the "cluster" of 6 diodes ( D107 to D111 ).
Any else have a clue here ? My next step it simply to start swapping "X" signal parts with the "Y" signal parts from the amp trans all the way back. But that will be VERY time consuming.
If you have had this problem, your input is appreciated.
Thanks,
Dave.
Powers up fantastic. Picture perfect. After about 15 mins. the lines start to separate and slowly become ONLY vertical lines for what should be the actual game graphics.
Re-soldered EVERYTHING on the bottom of the pcb.
Changed the 4 output transistors on the heat sinks.
Changed the "cluster" of 6 diodes ( D107 to D111 ).
Any else have a clue here ? My next step it simply to start swapping "X" signal parts with the "Y" signal parts from the amp trans all the way back. But that will be VERY time consuming.
If you have had this problem, your input is appreciated.
Thanks,
Dave.


