Midway Galaxian pcb sound area

[Belike]

I'm in the middle of a Single rom hack of a Midway Galaxian pcb, unfortunately my pcb's sound area was modified earlier and I guess some components are bad or missing.Is there anybody who can make some hi res pics from the original setup or tell me what is missing?
Here is some pics from mine:







You can see something from the removed hack on the botttom left corner:

[Laszo]

Hope it helps

[Belike]

Thanks Leo, I really appreciate it.
On your last pic, there is a green something under that heatsink.
On my pcb there is only one of these marked 472K100V at position C50 and nothing in C49 next to it.
Are there the same thing on yours in C49?

[Laszo]

No both are filled.... A really small cap..... Hard to see... You probably want to know what number is has?

[Laszo]

i did it 

It is marked:

 .47/35
+++++

[Laszo]

472K100V at c50 is correct.

[Belike]

Many Thanks again, I guess that will be the problem.