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last updated December 15, 2004
(slightly modified for re-posting September 22, 2007)

Every company that made videogames and pinballs at some point knows their shit
is going to break down eventually. To avoid doing ALL the repair work at the plant, its
best to make test rigs that qualified or clued-up technicians can utilise in order to fix stuff.

These Test rigs were not made in large numbers, and some were not even really available
to operators. They were mainly sold to and used by Distributors. This way the service
industry could be regulated and ultimately racketeered on. If only X number of distributors
had the means to reliably and quickly test/fix certain PCBs, then the repair charge could be
standardised amongst the cartel of test rig owners.. A clever ploy at squeezing some more
cash out of those pesky operators.

Because a lot of these rigs were never generally available, they are pretty hard to find today.
Because they were used in the front line at distributors, often when they became obsolete,
they were gotten rid of, to make way for the new stuff making it doubly harder to find them.

In July 2004 I had the chance to obtain a number of these test rigs when a nearby Pinball
Restoration company sold up after the owner unfortunately died. He shared my interest
in test rigs, and had a 15 year head start on finding them, and was very successful. When
the inventory was sold off, I was able to obtain the majority of the rigs that interested me.

And here is what I used to have, the majority of which came from there :
(2007 update - i only have the pat9000 and Williams system 7 rigs now)

STERN SAM II - Service Assistance Module
	Huuuuge coffin like box on wheels with two handles.
	Push it onto its side to stop it rolling around
	And crack open the lid... Instead of finding a body in the coffin, you find a SAM II. This one has had a lot of its PCBs removed already. Fortunately these are the PCBs that you actually fix, so are bog standard pin boards.
	Here's a look at the horizontal panel
	and here's a look at the vertical panel
	and here's a look inside when you lift up the horizontal panel
	here is the Test pcb... this looks to be custom, dunno what it does yet though :)
	this is what lays behind the vertical panel. Looks like a complete set of playfield coils.

Zaccaria Pinball test unit
	Appears to be 2 units to be used side-by side, each unit does a different job.
	Unit #1 - this one I think does something with the CPU board? the displays I don't think correspond to game displays, but are maybe diagnostic displays?
	unit #2- This unit does the switch and lamp matrixes and game displays.
	Inside unit #1, the CPU unit?
	this is whats inside the CPU unit, not much, and the power connector has ripped out I think.
	Unit #2 - the matrixes unit.
	Here are the cables in the flip-down front.
	Under the button/indicator matrixes panel
	inside unit #2

D. Gottlieb & Co. Test rig
	this is a cool looking rig, and nicely put together. All displays along one side with 2 main boards in front. A cool keypad and a screen of LED's indicate lamp matrixes. The LED and button panel actually lays flat, but swivels up on guide rails and wingnuts to a vertical position.
	You can see the rear of the unit has legs bolted on to keep it at an angle. There is a carrying handle, and clasps so I assume this should have had a lid, but sadly this is missing. I tested the unit, seems to work OK, but the main board that's on there isn't doing much of anything. 3 out of 5 displays light up, but I picked up a whole set of spare displays gotta try those out at some point.

Williams System 7 Test unit.
	Williams System 7 test unit. I believe this is an earlier system tester, but has been upgraded and added to, in order to give it system 7 compatibility, most evident is the extra head of displays and a driver board on the top.
	This unit has the following missing : 2 displays, speech, sound and CPU boards... Same again though, these are standard pinball boards. Inside this unit is a ROM board with a flying lead to plug into an EPROM socket, it has 3 roms on it marked 'test' so I don't know what its for yet, untested...

Williams System 3 Test unit.
	Williams System 3 test unit. This is what i think the system 7 rig above is based on This unit has a few missing pcbs, as you can see. Inside this unit is also a ROM board with a flying lead to plug into an EPROM socket, it has 3 roms on it marked 'test' so I don't know what its for yet, untested...
	overhead view..
	Front view, you can see this has a Williams logo on the front of the chrome panel :)

Atari PAT9000
	This is the Pat that is was on my workbench at retrokade, it is mostly working, except the power relays stick on sometimes. Its still very useable, but doesn't get all that much use to be honest because i can't afford to get all the damn plugs for it. This belongs to my associate Rav.
All following pictures are from the unit that i actually own... I also have some of the plugs : Asteroids and Return of the Jedi. I have on loan, a starwars, major havoc and irobot plugs.
	The rear, showing the Raster and Vector monitor plugs, speakers, fan, and serial stickers.
	This is a detail of the serial number stickers and info etc.. you can see that it is serial number UR00067, model number 33900
	The front, looking rather dirty, and various buttons knocked off, i have spares tho, so one day i'll put them back on :)
	the left hand side, showing the auxillary connectors, used for testing trackbals and other peripherals. These were also 'user ports' where you could re-route various signals to (via the program plugs), so that you could hook up external equipment or controllers to them.
	Right hand side view, these 2 connectors are for the main pcb connector harnesses, one for each pcb (as controlled/programmed by the program plugs on the front.
	this is the inside of the unit, tonnes of wiring and switches :)

Taito Test Tech (this wasn't actually mine, it was on loan from a fellow collector)
	The case... a nice and neat little package. This is basically just a signature analyser with a neat Taito logo :)
	Open it up, to see the business end in the bottom, and a secret panel in the top.
	Heres a closeup of the main unit, you can see that it is capable of handling 6802s and the 6809D and 6809V.
	This is whats in the secret panel, or false lid to be more accurate :) the pods and other associated cables... We managed to find a manual on ebay, when it turned up, it was just a photocopy, not like the aution photo :( some people are just plain scammers.

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