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Roto Solenoid Close Encounters
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ChrisBee
Dec 14, 2011, 8:29:19 PM12/14/11
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Roto Solenoid Close Encounters
Hi All, I have just got hold of a SS Close encounters of the third
kind Pinball. All works well with the exception of the Roto. As I’m
inexperienced at these machines a little advice would be appreciated.
The problem – once the Roto turns the Solenoid will not let the arm
release. What I’m seeing is before starting a new game, the voltage
across the solenoid is 0. Once a new game is started the voltage goes
to .7 volts. Once a switch is activated to rotate the Roto, the
voltage goes somewhere like 20volts +, as expected, but then stays
around 1volt. At this point the spring cannot return the plunger. I’m
suspecting the under playfield transistor is the fault, but before
tinkering I thought I may ask for advice, any suggestion?
Hi All, I have just got hold of a SS Close encounters of the third
kind Pinball. All works well with the exception of the Roto. As I’m
inexperienced at these machines a little advice would be appreciated.
The problem – once the Roto turns the Solenoid will not let the arm
release. What I’m seeing is before starting a new game, the voltage
across the solenoid is 0. Once a new game is started the voltage goes
to .7 volts. Once a switch is activated to rotate the Roto, the
voltage goes somewhere like 20volts +, as expected, but then stays
around 1volt. At this point the spring cannot return the plunger. I’m
suspecting the under playfield transistor is the fault, but before
tinkering I thought I may ask for advice, any suggestion?
John Robertson
Dec 15, 2011, 3:54:23 PM12/15/11
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http://flippers.com/gottlieb_ground_cures.html#system1
John :-#)#
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(Please post followups or tech enquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
John Robertson
Dec 15, 2011, 3:54:49 PM12/15/11
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