(Topic ID: 256339)

LAH flashers not working

By SealClubber

4 years ago


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  • 15 posts
  • 3 Pinsiders participating
  • Latest reply 4 years ago by pinmike
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#1 4 years ago

Need some help here please as I am not familiar with DE games. My buddy's LAH has one set of flashers not working. They are the lower right playfield flashers 6R. The bulbs are good. I get continuity all the way to the board connector. The TIP122 seems to check out fine as well as the little transistor next to it, and the resistor. The connectors seem to be good. The lower right scoop solenoid which I believe shares the TIP122 also works fine. I am not sure what else to check/do. Any suggestions from the tech gurus?

#2 4 years ago

Also, any idea what this wire goes to? It is in the back right of the backboard.

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#3 4 years ago

They may be for the light on the yellow bracket that the crane hits when it swings to the right.

#4 4 years ago

Hi Seal, I know you’ve probably heard this a million times did you check the fuses?If they are good the next thing to do is check the male header pins that connect to that connector.Check for cold solder joints on those header pins may need a fresh flow of solder.

#5 4 years ago

Drummer - Seems I'm missing the lamp assembly over there. I figured it was for a bulb. Thank you. Anyone have a good pic of this area? IPDB only has a far away shot.

#6 4 years ago

Pinmike - Fuses are good. The connector looked good but I will redo it anyway just to eliminate that option, thanks.

#7 4 years ago
Quoted from SealClubber:

Drummer - Seems I'm missing the lamp assembly over there. I figured it was for a bulb. Thank you. Anyone have a good pic of this area? IPDB only has a far away shot.

Will send a picture of the light.

#8 4 years ago
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#9 4 years ago

The flashers started working of their own accord. I am not messing with them unless they go out again.

Thank you for the pic. Luckily I have a spare socket like that. Had to drill out the rivet and bolt it on. Now the issue is that one strand of GI lamps doesn't work. I replaced the connector, pins and trifurcons and put in known good bulbs. I have connectivity from each lamp socket to each other and to the connector on both wires. I have good voltage when I test across the pins at the back/wire end of the connector but no voltage at any of the sockets. I don't see any shorts. How can I have continuity but no voltage?

#10 4 years ago
Quoted from SealClubber:

How can I have continuity but no voltage?

Having continuity from lamp socket to other lamp sockets in that same row/column is good confirming that there is no break in the wiring.Try gently wiggling that connector on the board for those lamps while powered on and see if they come on and off.

#11 4 years ago

No results from wiggling. I must be missing a short.

#12 4 years ago
Quoted from SealClubber:

No results from wiggling. I must be missing a short.

Hmmm,Ok fuses are good,Continuity is good,Connectors are Good.Honestly the next thing I would do is go over the wiring

#13 4 years ago

Tell you what Seal check the fuse holder to those GI lamps.DE and stern boards are notorious for lousy fuse holders they split much wider when too much pressure is pushed when putting in a fuse.It just came to mind and worth taking a look into.

#14 4 years ago

Thank you. Yeah I broke two fuse holders on the flipper board. Replaced all of them on that board.
I found the problem. Didn’t realize the gi wires went through two connectors on two different boards.
I think the reason I was getting a continuity tone was due to the pins being connected on the upper left board. When I pulled the wire out to double check the trifurcon, I lost connectivity. What a PITA.

#15 4 years ago
Quoted from SealClubber:

Thank you. Yeah I broke two fuse holders on the flipper board. Replaced all of them on that board.
I found the problem. Didn’t realize the gi wires went through two connectors on two different boards.

Sounds good buddy

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