**Reel Slots** Gaming Machines > IGT Reel Touch Games
Lobstermania gets stuck initializing
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qbert:
Ok you have a 500 series board.
What is the voltage reading of the coin battery?
Also when turned on are any of the LEDs lit on the lower mpu?  There also seems to be a lot of corrosion on the right side of the board.
Things to try:
Reseating the power supply behind the reels.
Carefully reseating the chips on the mpu.
kmarrocco:
Thank you for the quick reply.  The battery on the MPU is a new one, it measures around 3.2V.  But there are no LEDs illuminated on the MPU when it is powered.  I can try reseating the power supply behind the reels and the MPU chips.
kmarrocco:
I have reseated the power supply behind the reels and also the chips on the mpu.  There are still no lights on the MPU.
Stayouttadabunker:
Maybe I can help you a little?
We need to determine if the power supply is working right or not.
Grab your multimeter, open the door and turn on the power switch.
Let's check for power to the backplane board.

Way on the bottom right-hand side of the backplane, you can see that there's a white Molex connector?
On the top two pins of it, there's a single black wire going into it.
Stick the red probe of your multimeter into that pin with the black wire and touch your black probe onto the metal floor of the cabinet.
Tell us what voltage you get.
kmarrocco:
Thank you for your help.  If this is the right measurement point, I am getting 6.57V.
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