Arcade Collecting > Pinball
Repair Thread: Stern Lightning
FrizzleFried:
Because KLOV is down and I dunno for how long, I figure I will ask in here. Keep in mind I am a pinball newb and will have to have my hand held doing just about anything...
Here's the problem...my STERN LIGHTNING has no flipper movement. Nothing. The relay does not click as I'd guess it should, nor does anything move in the clear plastic relay housing.
They (the flippers) worked before I removed the MPU and cleaned up some battery damage. Nothing afterwards. All other solenoids fire as they are supposed to...
Someone mentioned bypassing the relay on KLOV. Can someone explain to me, in as simply/thorough way as possible, how I am supposed to bypass the relay? I was told to ground out the 'ground wire at the flipper switch (button?)...I tried, with an alligator clip from the ground of the button to a ground strap with no success.
Any suggestions?
EDIT: BTW, all fuses check out...and there is a 1.5a slow blow under the playfield that checks out...but there is only like .8v or something going through that fuse...is that right?
shardian:
This is right from the Marvin3m guide:
"My Bally game works fine except for the flippers. They do nothing. All fuses are Ok, as are the flipper EOS switches."
This is a very common problem. There is a relay on the solenoid driver board that turns on the flippers during a game. The power to this relay is through brown jumper wires between two header pins, adjacent to the relay. If one of the wires break, comes loose, or their solder points go cold, the flippers will no longer work. On the back side of the solenoid driver board, look for the two brown wires and resolder them to the connector header pins.
I could have swore you went thru this before...
shardian:
If the wires are intact, then you can jumper that relay to see if the flippers work. If everything is kosher on the driver board and jumping the relay works, then you have a cpu problem.
FrizzleFried:
--- Quote from: shardian on July 08, 2008, 04:32:24 pm ---This is right from the Marvin3m guide:
"My Bally game works fine except for the flippers. They do nothing. All fuses are Ok, as are the flipper EOS switches."
This is a very common problem. There is a relay on the solenoid driver board that turns on the flippers during a game. The power to this relay is through brown jumper wires between two header pins, adjacent to the relay. If one of the wires break, comes loose, or their solder points go cold, the flippers will no longer work. On the back side of the solenoid driver board, look for the two brown wires and resolder them to the connector header pins.
I could have swore you went thru this before...
--- End quote ---
I have a STERN ...though I know Bally and Stern are nearly identical, I have no brown wires on the backside of my solenoid driver board (from my recollection the last time you posted that)...I will double check however.
EDIT: Just checked...no wires. It is an SDU-100. There is no 2-pin headers anywhere near the relay.
FrizzleFried:
Looking at the back of the solenoid driver board it appears the relay simply connects two contacts labeled FLIPPER 1 BUTTON and FLIPPER 2 BUTTON to two contacts on a different connector named FLIPPER 1 and FLIPPER 2. Logic would dictate that all I would need to do is short the flipper 1 contact to the flipper 1 button contact, right?
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