Light board Help

gamingsince80s

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Hello everyone. After fixing every light on my Addams Family my girlfriend and I attempted to fix the lights on my No Fear. We are having trouble with six lights that are all on one side of the light board- see picture.

I have re-seated the connectors on both the light board and the power driver board with no change. I have checked the diodes on the light board and they all give a reading, but for now I only have a cheapy DVM and I can only check one way on the diodes.

Any ideas on what I should check/do next?

Thanks for the help!
 

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Common problem. Pull the connector, remove the board.

See the pins on the board the connector plugs onto ? Vibration and gravity is tough on them. Remove the old solder on the pins and flow on new solder. That should cure things.

LTG :)
 
Common problem. Pull the connector, remove the board.

See the pins on the board the connector plugs onto ? Vibration and gravity is tough on them. Remove the old solder on the pins and flow on new solder. That should cure things.

LTG :)

Lloyd Has it right! Good luck with the repair
 
Common problem. Pull the connector, remove the board.

See the pins on the board the connector plugs onto ? Vibration and gravity is tough on them. Remove the old solder on the pins and flow on new solder. That should cure things.

LTG :)

LTG, thanks for the advice! I will try that tonight if I get time when I get home and let you know how it goes. I have heard of other people re-flowing solder, and was thinking it may come down to that. I think this one may have plastic at the base of the pins. If it does have plastic at the base of the pins what is the re-flow procedure. Hope I'm not asking a dumb question, but I have never re-flowed solder on a board before and just want to make sure I am doing it right.

Thanks again!
 
Last edited:
Thanks for this, I'm having a similar issue with some playfield lights on my Rollergames pin. I'll give this a shot too.
 
LTG, thanks for the advice! I will try that tonight if I get time when I get home and let you know how it goes. I have heard of other people re-flowing solder, and was thinking it may come down to that. I think this one may have plastic at the base of the pins. If it does have plastic at the base of the pins what is the re-flow procedure. Hope I'm not asking a dumb question, but I have never re-flowed solder on a board before and just want to make sure I am doing it right.

Thanks again!

You want to reflow the solder on the OTHER side (back) of the board not the parts side. Those connectors all go to a plastic housing which holds the pins in place. They go through the board and are anchored in and make contact with their traces from underneath. Remove the board (carefully labelling all the connectors and where they go -- or take pictures) and resolder on the back.

Hope this helps,
Evan
 
You want to reflow the solder on the OTHER side (back) of the board not the parts side. Those connectors all go to a plastic housing which holds the pins in place. They go through the board and are anchored in and make contact with their traces from underneath. Remove the board (carefully labelling all the connectors and where they go -- or take pictures) and resolder on the back.

Hope this helps,
Evan

Evan,

Thanks for clearing that up for me. I hope I have a chance to do this tonight and if I do I will let you guys know how it goes.

Thanks again!
 
more likely that the wires going into the lamp board are not making a good connection. The wires are pressed into the connector and can become loose from removing the connector over time. Take a flat tipped screw driver and gently press each wires connection into the connector and see if that helps.
 
Well I pulled the board and was going to remove the old solder and add new solder. When I pulled the board I noticed there was very little solder at the base of the pins. I added solder to both sides of the pins, screwed the board back in, plugged it in and BAM they all worked!!!

Now I just need to figure out why all of the #47 bulbs aren't working and when I run the flasher test nothing flashes even though the flashers work during game play. The previous owner bought the latest cpu chip so I wonder if that has anything to do with it. I will take some pics and start a new thread on this later.


Thanks for the help everyone, especially to LTG!
 
more likely that the wires going into the lamp board are not making a good connection. The wires are pressed into the connector and can become loose from removing the connector over time. Take a flat tipped screw driver and gently press each wires connection into the connector and see if that helps.

Thanks for the reply and suggestion. I will have to keep this in mind for future light board and other connector issues.
 
Well I pulled the board and was going to remove the old solder and add new solder. When I pulled the board I noticed there was very little solder at the base of the pins. I added solder to both sides of the pins, screwed the board back in, plugged it in and BAM they all worked!!!

Now I just need to figure out why all of the #47 bulbs aren't working and when I run the flasher test nothing flashes even though the flashers work during game play. The previous owner bought the latest cpu chip so I wonder if that has anything to do with it. I will take some pics and start a new thread on this later.


Thanks for the help everyone, especially to LTG!

You have a high power interlock switch on the coin door that opens when the coin door is open. You need to enable that switch ( some pull out, some the game came with a yellow metal clip to hold it in ) to have high power during testing, like coils and flashers.

LTG :)
 
You have a high power interlock switch on the coin door that opens when the coin door is open. You need to enable that switch ( some pull out, some the game came with a yellow metal clip to hold it in ) to have high power during testing, like coils and flashers.

LTG :)


Ok, that makes sense. Thanks for the help!
 
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