Kalamath
New member
Ok, got my new Defender cab up and running, to a degree. I have both the regular and switching power supplies, and the game will boot up, and can be run through it's diagnostics with no rom, ram, nor display errors. The coin door controls work, and I can advance credits, or put the machine into manual mode and run tests.
Issue 1: Sound will come out of the speaker in the form of static if the volume pot is worked, but no sound from the startup, nor from the on-board sound check button. Occasionally there will be some slight static after pressing the on-board sound check, but not game sounds. Test 5 runs, but no sounds are made.
Issue 2: The control panel is non responsive. I tested continuity from the switches to the widget board, and that's good. Also, I tried unplugging the CP and jumpering a player 1 start with no effect at all. Test 6 shows Advance, High Score Reset, and the Coins all working, but nothing from the CP at all.
I've run both with and without the switcher, and get the same results, which makes me think it's not a power issue. Any ideas what I can test next?
ps. This is my only machine, so I can't swap in a different sound board or widget board unless I can find new ones to buy.
Issue 1: Sound will come out of the speaker in the form of static if the volume pot is worked, but no sound from the startup, nor from the on-board sound check button. Occasionally there will be some slight static after pressing the on-board sound check, but not game sounds. Test 5 runs, but no sounds are made.
Issue 2: The control panel is non responsive. I tested continuity from the switches to the widget board, and that's good. Also, I tried unplugging the CP and jumpering a player 1 start with no effect at all. Test 6 shows Advance, High Score Reset, and the Coins all working, but nothing from the CP at all.
I've run both with and without the switcher, and get the same results, which makes me think it's not a power issue. Any ideas what I can test next?
ps. This is my only machine, so I can't swap in a different sound board or widget board unless I can find new ones to buy.

