Gottlieb Pinball not working??

superbert1971

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hi all, my Gottlieb Gladiators pinball has stopped working! When i turn it on the backglass lights up and the screen where the score goes has a few lights but thats it. Other than a fuse which i looked at all of them and the look fine, what could it b or what could i try? I love my pinball and now its basically dead :(
 
Kicks OP for visual inspection of fuses!!!!! Pull them out and test them first, replace said baid fuse if their is one, unplug/replug all connectors, report back.
 
check the battteries, sometimes the most overlooked thing, that and fuses. also see if you can go in the diagnostic/test buttons at all on the coin door.
 
check the battteries, sometimes the most overlooked thing, that and fuses. also see if you can go in the diagnostic/test buttons at all on the coin door.

this thing has batteries?? Its my first pinball and i know nothing about them so this will all be a learning prosses
 
Gladiators uses a lithium cell soldered to the pcb behind the back glass. I doubt thats the cause for it not booting.

As Spanks mentioned, pull the fuses and test them with a meter to make sure they work.

Inside the coindoor on the left side there is a test switch to get into the test modes. Assuming the DMD and all else works ;)

Reseat connectors! Was your shaker motor working before? It might have shaken something loose.
 
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Gladiators uses a lithium cell soldered to the pcb behind the back glass. I doubt thats the cause for it not booting.

As Spanks mentioned, pull the fuses and test them with a meter to make sure they work.

Inside the coindoor on the left side there is a test switch to get into the test modes. Assuming the DMD and all else works ;)

Reseat connectors! Was your shaker motor working before? It might have shaken something loose.

I tried the test and it doesnt do anything. Please tell me how to test the fuses and ill pull them all tomorrow and test them. and what does reseat the connectors mean? And yes the shaker worked great as did the whole machine till this happened. so what should i check? thanks!!
 
READ THIS FIRST COMPLETELY FOR A BETTER UNDERSTANDING BEFORE DOING ANYTHING ELSE! http://www.pinrepair.com/begin/index.htm


Fuse: Put meter on the ohm setting, pull fuse completely out of holder, touch negative to one side of fuse/positive to the other and if you get a reading it's good, but if you get no reading *number doesn't jump around* then it's bad. I have had fuses pop under the end cap and looked good, but wasn't.

Reseating connectors: If you open the back box/head you will see a bunch of connectors plugged into the boards. Unplug every connector *one at a time* and plug it back in. Also look in the bottom of the cab *lift the playfield* and check the connectors that plug into the different boards there.

You will have fuses in the head, under the playfield *bottom side of PF*, and on the bottom of the cabinet.
 
hi all, my Gottlieb Gladiators pinball has stopped working! When i turn it on the backglass lights up and the screen where the score goes has a few lights but thats it. Other than a fuse which i looked at all of them and the look fine, what could it b or what could i try? I love my pinball and now its basically dead :(

On the CPU board (bottom right board in the backbox) there is a reset button. What happens you press this button- anything? (do this with the game powered on) Also, DO NOT unplug the ribbon connector going to the DMD board (top right) with the game powered on, you will most likely take out a chip on the DMD board in the process.

As others said, start with the simple stuff first- meter all fuses out of circuit to verify. If all fuses are fine, my next step would be checking the 5 volt supply coming off of the power supply board in the backbox (small board in the middle of the backbox). no clean 5 volt, no powerup....
 
On the CPU board (bottom right board in the backbox) there is a reset button. What happens you press this button- anything? (do this with the game powered on) Also, DO NOT unplug the ribbon connector going to the DMD board (top right) with the game powered on, you will most likely take out a chip on the DMD board in the process.

As others said, start with the simple stuff first- meter all fuses out of circuit to verify. If all fuses are fine, my next step would be checking the 5 volt supply coming off of the power supply board in the backbox (small board in the middle of the backbox). no clean 5 volt, no powerup....

nothing happens when i press the button and the CPU board. Ill check the fuses and see if any are bad. If ones bad would it still light up half way? thanks
 
nothing happens when i press the button and the CPU board. Ill check the fuses and see if any are bad. If ones bad would it still light up half way? thanks

Its not really lighting up halfway, the lights you see have nothing to do with the boards and the boot process. On these Gottliebs, the GI circuit is seperate from the boards (there is a GI relay inside your main cabinet on the right). In a working game, the GI relay will switch off via the driverboard transistor, and that is about the extent of it. It is not CPU controlled GI like many of the Williams titles.

You are not booting.... If all your fuses check out, next move will be to check your 5 volt at the power supply board to see what it is reading. There is a potentiometer on there that is known to flake out (or if you are lucky just need a few turns to clean the contacts). The top connector on that board can be pulled and checked for voltage. If it is low, then you will not get the boot to initialize.
 
Its not really lighting up halfway, the lights you see have nothing to do with the boards and the boot process. On these Gottliebs, the GI circuit is seperate from the boards (there is a GI relay inside your main cabinet on the right). In a working game, the GI relay will switch off via the driverboard transistor, and that is about the extent of it. It is not CPU controlled GI like many of the Williams titles.

You are not booting.... If all your fuses check out, next move will be to check your 5 volt at the power supply board to see what it is reading. There is a potentiometer on there that is known to flake out (or if you are lucky just need a few turns to clean the contacts). The top connector on that board can be pulled and checked for voltage. If it is low, then you will not get the boot to initialize.

Also, a quick test is to turn the machine off and then back on immediately. Try this a couple of times. I just went through this with a project Mario Andretti I brought back from the dead. All my fuses, voltages, etc. were within spec. I had a flaky (7hc451?) on the CPU keeping the CPU from booting cold.
 
ok, i pulled all the fuses and checked them and they all are good, im taking this each step at a time...so whats next on the list that i should try?
 
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