Eddy Sensor Boards - Revision history

Inkochnito at 07:10, 22 May 2016

2016-05-22T07:10:15Z

← Older revision		Revision as of 02:10, 22 May 2016
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	Eddys are reliable, but suffer from various long-term issues.		Eddys are reliable, but suffer from various long-term issues.

	[[Twilight Zone Eddy Boards] (uses first generation sensor board with opto coupler)]		[[Twilight Zone Eddy Boards]] (uses first generation sensor board with opto coupler)

	[[Star Trek: The Next Generation Eddy Boards] (uses first generation sensor board with opto coupler)]		[[Star Trek: The Next Generation Eddy Boards]] (uses first generation sensor board with opto coupler)

	[[Roadshow Eddy Boards] (uses second generation sensor board with transistors)]		[[Roadshow Eddy Boards]] (uses second generation sensor board with transistors)

	[[Theater of Magic Eddy Boards] (uses second generation sensor board with transistors)]		[[Theater of Magic Eddy Boards]] (uses second generation sensor board with transistors)

	[[Scared Stiff Eddy Board] (uses second generation sensor board with transistors)]		[[Scared Stiff Eddy Board]] (uses second generation sensor board with transistors)

	[[Cirqus Voltaire Eddy Boards] (uses third generation sensor board with auto adjust)]		[[Cirqus Voltaire Eddy Boards]] (uses third generation sensor board with auto adjust)

	[[Monster Bash Eddy Boards] (uses third generation sensor board with auto adjust)]		[[Monster Bash Eddy Boards]] (uses third generation sensor board with auto adjust)

Inkochnito at 07:08, 22 May 2016

2016-05-22T07:08:57Z

← Older revision		Revision as of 02:08, 22 May 2016
Line 48:		Line 48:
	Eddys are reliable, but suffer from various long-term issues.		Eddys are reliable, but suffer from various long-term issues.

	[[Twilight Zone Eddy Boards]]		[[Twilight Zone Eddy Boards] (uses first generation sensor board with opto coupler)]

	[[Star Trek: The Next Generation Eddy Boards]]		[[Star Trek: The Next Generation Eddy Boards] (uses first generation sensor board with opto coupler)]

	[[Roadshow Eddy Boards]]		[[Roadshow Eddy Boards] (uses second generation sensor board with transistors)]

	[[Theater of Magic Eddy Boards]]		[[Theater of Magic Eddy Boards] (uses second generation sensor board with transistors)]

	[[Scared Stiff Eddy Board]]		[[Scared Stiff Eddy Board] (uses second generation sensor board with transistors)]

	[[Cirqus Voltaire Eddy Boards]]		[[Cirqus Voltaire Eddy Boards] (uses third generation sensor board with auto adjust)]

	[[Monster Bash Eddy Boards]]		[[Monster Bash Eddy Boards] (uses third generation sensor board with auto adjust)]

Inkochnito at 06:59, 22 May 2016

2016-05-22T06:59:00Z

← Older revision		Revision as of 01:59, 22 May 2016
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	Tales of the Arabian Nights did not use eddys for its exit lanes. Instead, it placed an opto pair looking through the playfield. Safecracker and Cactus Canyon used special reed switches to detect the ball.		Tales of the Arabian Nights did not use eddys for its exit lanes. Instead, it placed an opto pair looking through the playfield. Safecracker and Cactus Canyon used special reed switches to detect the ball.

	Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost.		Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost. Note that the Roadshow manual has an incorrect schematic for the Eddy sensor board. Q2 is marked as 2N3904 when it should be a 2N3906 and diode D2 & D3 are the wroung way around. Use the schematic from Scared Stiff or Theater of Magic insted.

	The eddy sensor is a reliable part. However, they require an accurate set point that varies between boards, because of variations in the components.		The eddy sensor is a reliable part. However, they require an accurate set point that varies between boards, because of variations in the components.

Mr at 01:52, 6 June 2011

2011-06-06T01:52:52Z

← Older revision		Revision as of 20:52, 5 June 2011
Line 8:		Line 8:

	Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost.		Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost.

			The eddy sensor is a reliable part. However, they require an accurate set point that varies between boards, because of variations in the components.

Mr at 04:43, 27 April 2011

2011-04-27T04:43:42Z

← Older revision		Revision as of 23:43, 26 April 2011
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	[[Twilight Zone Eddy Boards]]		[[Twilight Zone Eddy Boards]]
	~~The trough opto is one of the worst problems in the game, second only to the clock. It has a number of problems.~~

	~~'''Connector Spring Failure'''~~

	The trough eddy board and its sensor are joined by a small cable. With the vibration from the trough, the pins lose spring and the connection becomes unreliable. There are two solutions. You can solder the wires directly to the boards. Or you can buy or make a new cable.

	~~'''Damaged Sensor'''~~

	The sensor is adjustable, and needs to be within 1/16 of the ball to work. If it is too close, the ball hits it and destroys the plastic. If it gets to the wire, the sensor will permanently fail. Although the sensor may look beaten up, the problem is still usually the cable.

	~~'''Out of Tune Circuit'''~~

	The design doesn't accommodate allvariations of parts and conditions, and may end up being too robust and never respond to a close ball - or it may never start up. One fix to try for a stuck red light is to add some twists to the cable,

	~~'''Failed Opto Output'''~~

	~~The output is an opto across the switch matrix. A short to the switch matrix can destroy the opto. Replace the opto if the LED works correctly but there is no switch signal.~~

	~~===How does Twilight Zone keep track of where the powerball is?===~~

	~~The powerball is a ceramic ball used in 'Twilight Zone' and the machine discovers it's location by using a combination of four different methods:~~

	1. By using the eddy sensor in the under playfield tunnel between the piano, camera, powerfield exit and dead end that ends up in the slot. If a ball triggers the piano, camera or dead end switches and then the slot switch triggers but* the eddy wasn't triggered in between, then we know the powerball must have gone through.

	*2. By using the eddy sensor in the ball trough

	*3. By failing to grab a ball successfully on the loop magnets.

	*4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.



	[[Star Trek: The Next Generation Eddy Boards]]		[[Star Trek: The Next Generation Eddy Boards]]

Mr at 04:42, 27 April 2011

2011-04-27T04:42:56Z

← Older revision		Revision as of 23:42, 26 April 2011
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	Eddys are reliable, but suffer from various long-term issues.		Eddys are reliable, but suffer from various long-term issues.

	==Twilight Zone==		[[Twilight Zone Eddy Boards]]
	The trough opto is one of the worst problems in the game, second only to the clock. It has a number of problems.		The trough opto is one of the worst problems in the game, second only to the clock. It has a number of problems.

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	Star Trek: The Next Generation Eddy Boards		[[Star Trek: The Next Generation Eddy Boards]]



	[[Roadshow Eddy Boards]]		[[Roadshow Eddy Boards]]



	[[Theater of Magic Eddy Boards]]		[[Theater of Magic Eddy Boards]]



	[[Scared Stiff Eddy Board]]		[[Scared Stiff Eddy Board]]


	[[Cirqus Voltaire Eddy Boards]]		[[Cirqus Voltaire Eddy Boards]]


	[[Monster Bash Eddy Boards]]		[[Monster Bash Eddy Boards]]

Mr at 04:40, 27 April 2011

2011-04-27T04:40:33Z

← Older revision		Revision as of 23:40, 26 April 2011
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	*4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.		*4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.



			Star Trek: The Next Generation Eddy Boards



			[[Roadshow Eddy Boards]]



			[[Theater of Magic Eddy Boards]]



			[[Scared Stiff Eddy Board]]


			[[Cirqus Voltaire Eddy Boards]]


			[[Monster Bash Eddy Boards]]

Mr at 04:35, 27 April 2011

2011-04-27T04:35:40Z

← Older revision		Revision as of 23:35, 26 April 2011
Line 8:		Line 8:

	Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost.		Earlier eddy boards used optocouplers as outputs. By Roadshow, Williams switched to a discrete circuit which increased the complexity of the board but presumably reduced the cost.


			Small Eddy Sensor
			[[Image:Small Eddy PCB Sensor.jpg\|200px\|thumb\|left\|Small Eddy Sensor]]

			Used in:

			*Road Show, head jaw hit sensors (2)
			*Theater of Magic, trunk hit sensor
			* Scared Stiff, crate hit sensor


			Twilight Zone Trough Eddy Sensor
			[[Image:Tztrougheddy.JPG\|200px\|thumb\|left\|Twilight Zone Trough Eddy Sensor]]

Sonny Jim: Formatting

2011-04-27T00:02:23Z

Formatting

← Older revision		Revision as of 19:02, 26 April 2011
Line 10:		Line 10:


	~~'''~~What Goes Wrong?~~'''~~		===What Goes Wrong?===

	Eddys are reliable, but suffer from various long-term issues.		Eddys are reliable, but suffer from various long-term issues.

	~~'''~~Twilight Zone~~'''~~		==Twilight Zone==

	The trough opto is one of the worst problems in the game, second only to the clock. It has a number of problems.		The trough opto is one of the worst problems in the game, second only to the clock. It has a number of problems.

Line 34:		Line 33:
	The output is an opto across the switch matrix. A short to the switch matrix can destroy the opto. Replace the opto if the LED works correctly but there is no switch signal.		The output is an opto across the switch matrix. A short to the switch matrix can destroy the opto. Replace the opto if the LED works correctly but there is no switch signal.

	~~'''~~How does Twilight Zone keep track of where the powerball is?~~'''~~		===How does Twilight Zone keep track of where the powerball is?===

	The powerball is a ceramic ball used in 'Twilight Zone' and the machine discovers it's location by using a combination of four different methods:		The powerball is a ceramic ball used in 'Twilight Zone' and the machine discovers it's location by using a combination of four different methods:

	1. By using the eddy sensor in the under playfield tunnel between the piano, camera, powerfield exit and dead end that ends up in the slot. If a ball triggers the piano, camera or dead end switches and then the slot switch triggers but the eddy wasn't triggered in between, then we know the powerball must have gone through.		1. By using the eddy sensor in the under playfield tunnel between the piano, camera, powerfield exit and dead end that ends up in the slot. If a ball triggers the piano, camera or dead end switches and then the slot switch triggers but* the eddy wasn't triggered in between, then we know the powerball must have gone through.

	2. By using the eddy sensor in the ball trough		*2. By using the eddy sensor in the ball trough

	3. By failing to grab a ball successfully on the loop magnets.		*3. By failing to grab a ball successfully on the loop magnets.

	4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.		*4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.

Sonny Jim: Add info about powerball tracking

2011-04-26T23:38:52Z

Add info about powerball tracking

← Older revision		Revision as of 18:38, 26 April 2011
Line 33:		Line 33:

	The output is an opto across the switch matrix. A short to the switch matrix can destroy the opto. Replace the opto if the LED works correctly but there is no switch signal.		The output is an opto across the switch matrix. A short to the switch matrix can destroy the opto. Replace the opto if the LED works correctly but there is no switch signal.

			'''How does Twilight Zone keep track of where the powerball is?'''

			The powerball is a ceramic ball used in 'Twilight Zone' and the machine discovers it's location by using a combination of four different methods:

			1. By using the eddy sensor in the under playfield tunnel between the piano, camera, powerfield exit and dead end that ends up in the slot. If a ball triggers the piano, camera or dead end switches and then the slot switch triggers but the eddy wasn't triggered in between, then we know the powerball must have gone through.

			2. By using the eddy sensor in the ball trough

			3. By failing to grab a ball successfully on the loop magnets.

			4. By counting the powerball as it goes in and out of containers, such as the lock and trough. So if the machine knows there's two balls in the trough and you drained the powerball during single ball play, it'll be out the trough again in 2 balls time.