LW3 home, pictures attached diagnostic underway

Tech Help, Restorations, Refurbishments, "Shop Out" Photos, Notes
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ralphwiggum
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Re: LW3 home, pictures attached diagnostic underway

Post by ralphwiggum »

max242 wrote:
Thu Nov 07, 2019 1:06 pm
Well, I completed the repair and cleaning of my LW3. New display board, various connectors, ramp switch, contact and switch cleaning, playing field wax, new rubbers, bulbs, & balls. I may look to repair the original display board, not sure. The best thing is I was not in a hurry. Family is coming for the holidays and they will have fun. We are re-arranging basement to place all 3 machines in row. It will be a good time to clean/wax the others. Is there room for a 4th? I wanted to thank everyone for the help and answers to questions. This is a great site. A special shout out to Ralph :) . Again, thanks everyone.
Congrats, your family will enjoy hours of fun on all of your machines.... You have a nice variety for people to play. Trust me there is room for a 4th, in fact, once you start realizing how much unnecessary room things like a dining room take up, you will soon find room for a 5th, 6th, and 7th! :D
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max242
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Re: LW3 AA battery replacement question

Post by max242 »

All, AA Battery possible issue questions. No issues at this time. My LW3 has a AA battery setup mounted to the CPU board. I have seen other people post about battery leaking issues. I want to avoid this for the future. Been reading about remote mounting AA, Capacitors or CR2302. Looking for recommendations on what others have had success with. Thanks in advance, Max
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ralphwiggum
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Re: LW3 home, pictures attached diagnostic underway

Post by ralphwiggum »

You want NVRAM.... I put it in everything I can. No more batteries, ever again. It is super easy with Data East because there is no soldering/desoldering involved.


https://nvram.weebly.com/
Andrew (the seller on that site) is a great guy, you want the 6264 ram.
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max242
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Re: LW3 home, pictures attached diagnostic underway

Post by max242 »

Thanks Ralph - Just ordered - No Soldering, I am interested to see where it plugs in.
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ralphwiggum
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Re: LW3 home, pictures attached diagnostic underway

Post by ralphwiggum »

You replace the ram (near the batteries) with this NVRAM. Make note of chip orientation upon install. There is a notch on the chip to show orientation.
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max242
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Re: LW3 home, pictures attached diagnostic underway

Post by max242 »

Will do :D Looks like location D-5 below the eprom. And good call on a pic for orientation.
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