Low pop bumper lamp voltage woe

[Mfresh]

Pooman2084 came over the other day and pointed out the lamps were out in all three pop bumpers on my RoadShow. Two just needed new bulbs and now work fine, but the other is more of a problem: the voltage at the socket (and at the metal lamp holder legs under the playfield is just 1.8V, while for the other two that work the voltage is more like 4.8V.

Any idea why one pop bumper lamp has such a low voltage across it and how to fix it?

Cheers,

Paul

 

[ronsplooter]

Burnt or corroded connector increasing the resistance and causing the voltage drop maybe?

 

[Mfresh]

You mean the connector in the backbox?

 

[ronsplooter]

Yes mate, check for signs of heat damage or corrosion on both the connector and the pin on the board

 

[Mfresh]

Thanks 'splooter. Shoved the wires back in to the plug more firmly with a idc tool and it's all working again.

Cheers

Paul