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IJ, lost playfield top lights, J120 and J121 reversed, back on, but...
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Jason
Dec 30, 2011, 7:22:57 PM12/30/11
to
A few days ago, all the playfield top lights went out on my IJ (pop
bumpers, indy lanes). I looked at F106 - F110 on the power driver
board and all fine.
Today I checked for power at a pop bumper light socket, and nothing. I
started looking in the manual trying to find White-Brown and noticed
it was supposed to be on J121-7. I then realized that J120 and J121
were backwards. (Never touched these connectors before) When I went to
swap them the right side of J120 molex connector was nice and brown
and super hot.
I switched them and the playfield top lights are working. I think J120
was initially for backbox top lights and they are working too.
I started looking at the schematics, and it looks like J120 and 121
are just electrically connected, so I'm afraid I might have more
issues that I'm not seeing now.
Anyone have any advice for what I should look for?
Thanks,
Jason
bumpers, indy lanes). I looked at F106 - F110 on the power driver
board and all fine.
Today I checked for power at a pop bumper light socket, and nothing. I
started looking in the manual trying to find White-Brown and noticed
it was supposed to be on J121-7. I then realized that J120 and J121
were backwards. (Never touched these connectors before) When I went to
swap them the right side of J120 molex connector was nice and brown
and super hot.
I switched them and the playfield top lights are working. I think J120
was initially for backbox top lights and they are working too.
I started looking at the schematics, and it looks like J120 and 121
are just electrically connected, so I'm afraid I might have more
issues that I'm not seeing now.
Anyone have any advice for what I should look for?
Thanks,
Jason
PinAffliction
Dec 30, 2011, 7:38:04 PM12/30/11
to
Yes they are electrically identical. Look for cracked solder joints or
broken foils between the two connectors. You should be replacing the
burned header anyway, run jumpers if needed.
--
PinAffliction
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Lloyd Olson
Dec 30, 2011, 7:46:30 PM12/30/11
to
Replace the burned connector, replace the burned header pins. When you put
new pins on the board, take your meter and check continuity of each pin onto
the board somewhere to be sure you didn't lose across or through board
continuity.
GI burn is a common problem, and you need to replace both sides, otherwise
you'll be working on it again real soon.
LTG :)
"Jason" <jsm...@gmail.com> wrote in message
news:1ff2f995-8d2e-4b09...@d8g2000vbb.googlegroups.com...
new pins on the board, take your meter and check continuity of each pin onto
the board somewhere to be sure you didn't lose across or through board
continuity.
GI burn is a common problem, and you need to replace both sides, otherwise
you'll be working on it again real soon.
LTG :)
"Jason" <jsm...@gmail.com> wrote in message
news:1ff2f995-8d2e-4b09...@d8g2000vbb.googlegroups.com...
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