After about 8 games, my Gorgar shuts down...scoreboard blanks out, flipper stop functioning and kickers stop working. The playfield, however, remains lit. The game used to do this after about 2.5 games, so I rebuilt the POWER BOARD with a kit from Great Plains and now it'll give me 8 games. I also replaced and fused the rectifiers.
I did not replace the 5 V regulator or C16.
Here are the power readings on the POWER BOARD: On 3J6 - Pin 6 =10.6 VDC, Pins 7,8,9,10 = 5.05 VDC. On 3J1 - Pin 10 =8.7 VAC, Pin 11 =8.7 VAC, Pin 12 =0.0 VAC (the schematic tells me it should read 9.3 VAC C.T. What does the "C.T" stand for?)
Does anybody have any ideas why the game shuts down?
I've also replaced resistors R149 to R156 on the DRIVER BOARD because the old ones were peeling, fried looking and got EXTREMELY hot. However, the new 27 Ohm resistors still get too hot to touch. (Is that normal?) The 100 Ohm and the 4 Ohm in the adjacent rows remain barely warm. Could this have any connection to the game shutting down?