Arcade Collecting > Pinball
Careful what you wish for- I finally got to join the club
lilshawn:
i think bought about 600 white and about 200 various colors in #44's and #555's from china on ebay. i've used most of them on various pins over the last 8 months or so and had an issue with maybe 1 or 2 so far, and both were just dead out of the package. (probably a solder joint or something.) all the pins are on routes and ive had no issues with them dying or anything.
LED's really are getting better and better and cheaper and cheaper.
back in the day, you'd buy an LED and it would work for a few days then start twiching out cause the wire bond would break on them.
bobbyb13:
All good to hear, especially from both of you gents.
Only hiccup I can see at this point is the driver boards not being happy with LEDs on the receiving end, but we'll see what things look like once I try the bulbs.
I ordered a batch of 44/47s and 55s from the vendor pbj linked so hopefully they get here sooner than some other things I have bought recently.
Holy crap do I have abunch of open projects.
lilshawn:
your best bet is to make sure you buy AC/DC capable bulbs. they increase the cost a little bit, as they have a tiny little FULL WAVE RECTIFIER inside , but smooth out the flicker you might see.
if you have issues with SCR controlled lights (i don't think you will here...only a few of the early systems do) adding a 490 ohm resistor across the socket will eliminate it and provide a proper loading and unloading of the SCR switch. there are ready made clip in boards available from places like SIEGECRAFT as well if you don't want to solder. you just unplug the lamps plug from the board, plug the resistor board onto the pins and plug the lamps plug onto the resistor board.
also be sure, if your system supports dimming of the lighting, set it at 100% dimming just introduces flicker.
bobbyb13:
I'm as stunned as anyone could be, but I have a functional Simpsons pinball machine.
The power supply had some really burned connectors and one that was so obviously bad that someone had just yanked the header and soldered directly to the board.
It was a mess that took a while to clean up and it still didn't put out good voltage.
The mpu was so alkaline scorched that by the time I figured I had all that neutralized there was no mask in various spots anymore and the chips it drooled through were not happy either.
The battery waterfall was so bad for so long that it made it into the playfield power board too.
So...
After a box with some Rottendog pcbs arrived and I repaired a bunch or wiring harness I was greeted with the themesong from a favorite cartoon show.
Totally ridiculous.
Really fun.
I'm still waiting on those new led bulbs but I swapped out all the rubber anyway and got some shiny new balls and it is a fun machine.
I'll need to stop playing it long enough to swap in new drop targets (even broke one playing today) and there is somebody on pinside trying to recreate playfield art so who knows how sexy this one could get before I'm done.
Doh!
lilshawn:
--- Quote from: bobbyb13 on February 06, 2023, 12:52:39 am ---The power supply had some really burned connectors and one that was so obviously bad that someone had just yanked the header and soldered directly to the board.
--- End quote ---
this is normal pinhack repair. the pins and connector burn up and instead of spending 10 bucks and replacing them, people just solder the wires to the board...nothing really wrong with it per se, but it make it a pain in the butt to repair since now your stuff is attached together.
--- Quote from: bobbyb13 on February 06, 2023, 12:52:39 am ---It was a mess that took a while to clean up and it still didn't put out good voltage.
--- End quote ---
yeah the voltages aren't real critical. as long as the +5v is good and making it to the CPU board processors at 5.something volts... the others can be out by quite a bit before you notice.
--- Quote from: bobbyb13 on February 06, 2023, 12:52:39 am ---The mpu was so alkaline scorched that by the time I figured I had all that neutralized there was no mask in various spots anymore and the chips it drooled through were not happy either.
The battery waterfall was so bad for so long that it made it into the playfield power board too.
--- End quote ---
i don't know why anyone thought putting batteries that leak onto a board and not in a holder away from everything was a good idea.
--- Quote from: bobbyb13 on February 06, 2023, 12:52:39 am ---So...
After a box with some Rottendog pcbs arrived and I repaired a bunch or wiring harness I was greeted with the themesong from a favorite cartoon show.
--- End quote ---
ahh the easy, stress reduced way of gettin' 'er done
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