I've got a WOZ ECLE early version. This is a location machine and I've had alot of problems with the light boards, replacing many of them, some more than once. I recently had WOZLED6 along with a GI board go out. I talked with Jack and he agreed to send me a whole new set of buffered boards. Since my machine is an early model it is running 5v boards.

When I got the replacement boards, there was a note that said they ran out of the 5v boards for WOZLED2, WOZLED5 and WOZLED6. They included the 7.5v version of these boards and said they would work fine in my machine. I've put in a call to JJP's tech support to confirm this and they said they would have to talk to their engineers in Chicago to verify this and call me back, saying it could be a few days.

Also, my original WOZLED6 board had a single red wire with a connector that plugged into a connector in the wiring harness loom under the playfield. The new WOZLED6 board does not have this wire. The tech I talked to said this was not a problem and that connector is no longer used.

Has anyone used a mix of 5v and 7.5v boards in a earlier machine that's made for 5v boards?

Build date is 9/5/2013. I got an email from Frank @ JJP and said you can use up to (3) WOZLED 7.5v big boards in a 5v machine with no problems. Played a few games and so far so good.

This is a location machine and has been since we bought it. It's on for about 12 hours a day. Early on we had 1 or 2 lock ups but haven't seen one of those in a couple years and we are running the latest software (well, the latest before this last update that just came out).