I picked up a Laser War (Data East, 1987) recently, and I'm working through some issues. It boots and starts a game, so that's a good start. I have a few issues with it. Here's the one I want to tackle first:
Flipper Lock On Issue
The flippers didn't work when I got it. I checked the fuse on the flipper power board in the head, it was blown. I inspected the flippers and the left flipper looked cooked. The coil sleeve is completely melted inside, so cleared that coil fried at some point. The right flipper looked good, and moved fine (manually). It's the wrong coil, but only slightly, so I can deal with that later.
I replaced the fuse and started a game. The right flipper works fine. If I press the left flipper, the fuse on the flipper board blows within a second or two. I believe I heard a short click/hum from the left flipper area a moment before that happens.
I'm not familiar with the early Data East flipper setup. I see a small board with a relay on it under the playfield, near the left flipper. It's got a fuse (not blown), a resistor that looks possibly fried, and a couple diodes.
Would the fried flipper coil cause the lock on/fuse blow? If so, I'll simply replace it and assume the issue will go away. If it's more likely to be something else, like that board, or a transistor I'm unaware of, I want to make sure I check that before replacing the coil. Better to cover all the bases. Suggestions welcome. Thanks!