Pinbot
Williams, 1986You're currently viewing posts by Pinsider blowback1976.
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I have an odd issue with Pinbot flashers. The sun, the pop lights, and the two flashers on the left by the ramp are always on, but will pulse when they are suppose to flash. I've already replaced all the snubber boards and flash lamp baords. Thought it might be a transistor, but if they pulse when they're suppose to, I'm guessing I have a bigger issue.
Quoted from Stretch7:Are these flashers led?
Yes they're LED, but the incandescent's were doing the same thing before they were changed out.
Quoted from Out-West:Check the resistor banks for proper sizes, my sun insert had wrong resistor on one set of bulbs.
I'm guessing that's the diode board by the chest plate? I'll check when I do my solenoid tests.
So, there's obviously a bigger issue than I thought. Going through the solenoid tests, the lights were on during several of them:
Lights on at Knocker
Lights on at F.L Top F.L. 2
Lights on at Backglass L. Flash
Lights on at Backglass R. Flash
Lights on at Top F.L. 1
Lights on at Energy Flash
Lights on at Left Flash L.
Lights on at Sun Flash L.
Lights on at A/C Select
That seems like a lot that are energized at the same time. Would this be a grounding issue? Anything specific I should be checking under the playfield?
So with incandescent flashers in, it is still doing the same thing, and failing during the same tests. Are the warming resistors the ones on the Flash Lamp boards?
Quoted from wayout440:I'd be taking a closer look at the A/C relay board. (miswired? shorted?)
I'll check that tomorrow, and see what I find. I hope its not the board, I replaced it as I was having this issue with the original board.
So just checked it out. Wiring is correct, but appears the Drive transistor may be the issue. Thought I had already ruled it out, as being good. Will replace it and see what happens.
Just noticed this, but how many of the snubber boards are suppose to have G and power jumpered? In one of my previous posts, I noticed the jumper was on solenoid 12, and this one is solenoid 14. I think I'm missing pages in my manual as I don't see the snubbers listed, or the drawings for them. This could also be part of my issue.
Alright, another update. So replaced Q33 and everything works properly with incandescent bulbs. Put LEDs back in, and they stay on. Instead of Fighting and modify the flasher boards, I'm going to keep the incandescents's in.
Thanks for the help.
Quoted from bobbyt:just remove the ground wires and the led's will work perfectly
Would that be from the snubber or the flasher board? I would prefer the LED's for sure.
Quoted from bobbyt:That is exactly what i did, I clipped all the ground wires from all the flasher boards and all the led's work properly now, I left the wires there and shrink wrapped the ends just in case i ever want to go back to original bulbs or when i sell it
Thanks guys. She's all LED's now.
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Pulaski, PA