These are the old 1978-1980 games.
On Star Trek, a bunch of lamps don't work. I assumed that it was bad lampholders, and have not done much with it yet.
On Kiss, no switched lamps were working. I traced the problem back to TP4 having no power on the power assembly board. I replaced the board (it was the rectifier), and TP4 was fine, as are all the others. However, only a couple of lights worked (a couple specials, one arrow, the two above the center lane at the top). About 7 flash in the test mode.
I switched in a spare lamp driver, and then no lamps worked.
I switched in the Star Trek Lamp driver (which is driving a lot more lamps) and none of the switched lamps worked on Kiss.
I switched back in the original lamp driver board, and the same 7 or so lights are working.
I checked whether bulbs were bad, and they were not.
All lamps have worked in the past, many years ago.
Any ideas?
On Star Trek, a bunch of lamps don't work. I assumed that it was bad lampholders, and have not done much with it yet.
On Kiss, no switched lamps were working. I traced the problem back to TP4 having no power on the power assembly board. I replaced the board (it was the rectifier), and TP4 was fine, as are all the others. However, only a couple of lights worked (a couple specials, one arrow, the two above the center lane at the top). About 7 flash in the test mode.
I switched in a spare lamp driver, and then no lamps worked.
I switched in the Star Trek Lamp driver (which is driving a lot more lamps) and none of the switched lamps worked on Kiss.
I switched back in the original lamp driver board, and the same 7 or so lights are working.
I checked whether bulbs were bad, and they were not.
All lamps have worked in the past, many years ago.
Any ideas?
