(Topic ID: 188793)

Bally Solenoid Expander Help

By Astill

6 years ago



Topic Stats

  • 9 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by Astill
  • Topic is favorited by 4 Pinsiders

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#1 6 years ago

Hi any solenoid expander experts out there. My issue is on a bally vector. Thee pins are reflowed on the expander , there is 43v present on the expander. The light beside it flashes on and off, when i manually hold the relay in the secondary solenoids all work. I have replaced the relay , tested the dide and resistor , what am i missing??

#2 6 years ago

Does the expander lamp flash during lamp test?

Path to ground through a lamp scr is what turns on the relay.

#3 6 years ago

yes the bulb flashes , im assuming that eliminates the lamp board or wiring as a possible culprit.

#4 6 years ago
Quoted from Astill:

yes the bulb flashes , im assuming that eliminates the lamp board or wiring as a possible culprit.

Next try solenoid test. It should light the lamp and pull in relay during the expanded solenoids testing.

#5 6 years ago

no , no coil activity, it does light the lamp as its supposed to but no life on the seb. i changed the relay and the 3011 no luck.

#6 6 years ago

Did it work before? Is this the correct solenoid expander for the game? Specifically, does it have a jumper installed between pins 4 and 9?

#7 6 years ago

it does have a jumper between pins 4 and 9 , game was a project so i dont know , i will check the manual

#8 6 years ago

P1 switched lamp bus. Goes to anode of opto isolater triac driver MOC3011-U1
P2 Lamp SCR Connection. Goes to cathode of opto.
P3 GND

P9 +43v for relay and selected bank of solenoids
P4 Jumper brings +43v here when expander board used to do banks of solenoids. Probably NC on the harness.
P7 When relay on, this pin high impedance. When relay off, This pin is +43v (2nd bank of solenoid's hot side)
P5 When relay on, this pin goes to 43v. When relay off high impedance (1st bank of solenoid's hot side)

The relay is turned on when the lamp driver board's associated SCR turns on the expander board's lamp. When the lamp is on the opto isolated triac turns the relay on. The relay is toggling the banks of solenoids hot side while sharing a common solenoid driver transistor(which sinks low).

Can you hear the relay clicking? Can you check for the 43v? Bad opto isolated triac MOC3011? Jumper needs to be in too. It connects the 43v to the middle pin of the relay that switches to each bank side of solenoids.

#9 6 years ago

solved the ground wire was broken , its funny how you get so involved and you overlook the simple stuff. Thanks for all the info barakandl you are the best.

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