Hi Pinside,

I bought an F-14 a few months back and have been having an awesome time cleaning it up. I have a bit of an odd situation. When I turn on my F-14 I almost immediately get music. It's kind of an odd sound as well. Kind of like circus music. I've also noticed that during game play the dots on the upper displays turn on an off as well (The dots above the commas used to separate the score for readability). For reference I have a rotten dog mpu and a led display (Orange) which came with the game. I also replaced the power supply board with a rottendog power supply board as I was having a lock up issue. I thought this had been resolved but when league came over it reared its head again. Subsequent attempts to reproduce the lock up have failed (Tested every switch, left the game on for hours and nothing, also put it in burn in mode for a while). Does anyone know which chip on the board calls for the music to start playing. I have ordered some replacement chips as they are socketed. My thought is one of them probably just got fried by something at some point.

Afternoon bump

Night time bump

Something went bump during the day

Interesting, so the game came with new roms from K's Arcade (Or where ever the rottendog board came from again it came with the machine). However I'm not opposed to buying some new copies of those roms just to see if it will resolve the issue.

Regarding the lock up. It happens almost randomly. The game stays on and the display stop displaying anything (However it is still on) the controlled lamps that are on stay on and the GI stays on. The music normally stops or plays on a loop. The flippers and slingshots continue to work but yeah it basically just sits there until I turn the power off on the game and then turn it back on after which the game plays like normal for a while.

oddly I can't get it to do it again (Not from lack of trying). That could have just been a fluke although a weird one given how many times it reoccurred. I'll give the new roms a shot as well thanks for the help!