Author Topic: Bally Solenoid Driver Repair  (Read 15009 times)

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Offline Strangeways

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Re: Bally Solenoid Driver Repair - Quick Update !
« Reply #30 on: December 04, 2008, 09:36:46 PM »


It's been a while since I've updated this guide, so here it is !

I've replaced all the components I've listing in addition to the GPE HV Kit. Of note - C26 was definitely not in good shape so it was removed and discarded. J3 was also replaced as the pins were tarnished. I plan on replacing all the connectors, as this board will be going into my treasured Paragon. All the pins will be replaced as well.

Here's a couple "after shots" of the board ;







Cable ties are tightened BEFORE soldering the legs on the capacitors. Note C23 has its legs soldered directly to the board.

Work to be done ;

All connectors
Test the board in the machine
Update the Ground (mods), as per Clay's guide


Just a quick note - I've received a couple of PMs regarding some SD boards on eBay recently.. These are NOT "tested" (if they are it would be a visual test  ::) - they would not be working correctly ), contrary to the Auction descriptions, and the proof of this fact are that the original C23 is still soldered to the board. These caps last 10 years before they start to fail. They cost $5 to replace.. In the past, I have picked up SD Boards for $20 in better condition on eBay. It would cost an addition $20 in parts to have it rebuilt.



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