Atari Gravitar problems- Loud "click" sound + monitor problems

khabbi

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Atari Gravitar problems- Loud "click" sound + monitor problems

Just got my Gravitar shipped in from VA, and I am having a few problems that I need to troubleshoot... First and foremost, when you power the game on there is a loud "Click" or "pop" sound.. and the same sound is heard when you start a game, and at the end of the game when it goes from Gameplay to Attract mode. Was wondering if anyone had any ideas on what this could be?

I am also experiencing waviness in the monitor, this was before I replaced "big blue", which did help a little, but it's still basically doing the same thing, just not quite as bad.. I figured I'd post his up to see if anyone may have an idea besides "just cap the monitor and put an LV2000 in it".. Any help would be appreciated!

Here's the problem:



Here's what it looks like after replacing "Big blue", a nice improvement, but not the complete solution:



And the loud click you hear is when I push the player one or two button, and the same loud click is heard when the game ends and goes back into attract mode:

 
I didn't play the video but I think the click at the beginning and end of the game is the lockout coil locking in game play to prevent quarter from being put in the game in active game play, it un locks when the game is over. They probably did this to prevent fights. Lol you know you put you quarter on the marque and the asshat playing keeps popping another quarter in while you're not looking as he is playing, game ends and he says he's still got another credit at which point you are ready to kick his ass off the game. :) as for the monitor, did you cap it and do all the upgrades like replacing common failure diodes and transistors?
It almost does sound like it's coming from there.. so what are the lockout coils and is this a problem? and if so, how would I fix it?
 
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