Quoted from Mr_Tantrum:
I was wondering if this was normal back ramp behavior:
- Back ramp is in down mode
- Ball is drained and back ramp raises
- Next ball is launched
- At the last second the back ramp lowers, ball goes up it slightly but not enough to make it to Donut Heaven, and then ball returns down ramp and is diverted to pop bumper area instead of making full loop.
As far as I can tell, my ramp is working correctly under all circumstances and my ball launch power seems very good. Watching in every other situation, it appears to me that the ramp gets out of the way for play but seems to purposefully get in the way in this scenario. May just be the way it is, but thought I would ask. FYI, I'm on v2 of firmware but I seem to recall v1 behaved the same.
When you say "At the last second the back ramp lowers", you mean it lowers after the ball is launched and right before the ball gets to the ramp? That is really strange, particularly if the ramp otherwise works reliably 100% of the time.
Why does the ball not make it up to donut heaven? Did the ramp not go down fully (slowing the ball down as it transitioned from playfield to ramp) or did the launcher not have enough power?
Do you have a credit dot (indicating some of the switches may not be working correctly)? In normal operation if lock is lit and a ball is launched, the ramp raises for the launch, then lowers after the ball has looped around under the ramp once (so if you make the upper flipper shot it will go up the ramp). I'm guessing that the ramp lowers after it detects one or more of the lane switches (SW17 and/or SW18) closing. If one of those switches was bad (shorted closed), the software might think/"guess" that the plunged ball had completed the loop before it actually had, causing the ramp to come down early.
That's my best guess given what you've provided. Let me know if you've got a credit dot (a period right after the number of credits on the DMD) or any more clues... I'd perform a full switch test to make sure your switch matrix (switches and diodes) are all OK.